lated from Saintpaulia ionantha (Kotoujansky et al., 1982). Propagation can be done through seeds or by dividing old plants, but the simplest method is to use well-developed leaves. It is a low, compact plant with attractive dark green, thick, hairy leaves. Saintpaulia ionantha Judging from reports in the literature and information in herbarium collections, S. ionantha does not seem to be recorded anywhere else than in the Tanga area. Under suitable conditions, it can flower at any time of the year. Wendl.) Fig. By Martine Boccara, Jean-luc Aymeric and Christel Camus. - African Journal Uses spatula, watering can, ground. As of 2009, there were nine species, eight subspecies, and two varieties of Saintpaulias established. in middle Tennessee has experienced epidemics of Corynespora leaf spot caused by Corynespora cassiicola (Berk. When potting African violets, take care to set the plant so that the crown is just above the surface and the soil is firmly pressed around it. A good growing medium should contain 50 percent medium, 25 percent air and 25 percent water. Water from either the top or bottom. Sometimes called Cape violet or African violet, its blooming can sometimes last for most of the year! In recent years, a large commercial grower of African violets (Saintpaulia ionantha Wendl.) ionantha (see p. 50), Saintpaulia in honour of its discoverer and ionantha meaning violet flowers (Wendland, 1893). The thripid can be controlled with methamidophos, deltamethrin or endosulfan. Plants of small size, grow up to about 15 cm in height, and can spread from a few centimeters to more than 40 cm. Saintpaulia is a member of the Gesneriaceae family and contains approx. There Saintpaulia jonantha it is the best known species and most of the cultivars and hybrids on the market have been obtained from it. Entry for Saintpaulia ionantha var. Streptocarpus sect. Assistenza Contattaci al numero (+39) 0432 677590 o invia un’email a info@ortofiorito.it. Royal Botanic Gardens, Kew (K) Collection. Two species, S. ionantha and S. confusa, are parents of most of the hybrids lines available today. The ideal are hot days (temperature above 21°C and below 32°C) and milder nights, but with temperature above 18°C. The most important pest is Frankliniella occidentalis. Saintpaulia ionantha SCHEDA BOTANICA La Saintpaulia ionantha è una pianta tropicale perenne, con rosette di foglie cuoriformi, pelose e carnose, verde scuro sopra, violaceo sotto; fiori medi, numerosi, semplici, semidoppi o doppi, lisci o arricciati, bianchi, rosa, azzurri, blu, viola, anche screziati o variegati. Height / Spread. With adequate lighting and watering african violets are very easy to maintain . Baill. is an accepted name This name is the accepted name of an infraspecific taxon* of the species Saintpaulia ionantha H.Wendl. There is usually no problem in wetting the leaves with water at room temperature, as long as the water is above 20°C. Saintpaulia. No significant spread of the disease was observed with inoculated Spathiphyllum plants nor from plants potted in infested soil. The most cultivated species is the Saintpaulia ionantha. Purple African Violet Saintpaulia ionantha in lilac pot close-up. Una novità dal fogliame screziato di rosa antico. What are synonyms for Saintpaulia ionantha? Attacks can be recognized early by using sticky traps or indicator plants. 1). Always keep the substrate moist. The violet-like flowers are borne in … (African violet) is one of the most important ornamental plant species of the genus Saintpaulia from Gesneriaceae family. The roots form in about 2 to 4 weeks and leaves start to appear in 4 to 8 weeks. grotei (Engl.) Common name - African Violets. Saintpaulia is a cute indoor plant native to Africa. Bloom Description: Blue, pink, purple and white. The flowers can be simple or folded, with smooth or curly edges, in shades of blue, pink, violet, purple, red and white. Because of their similarity with the true Violets (Viola) they are commonly known as African Violets.. State Parents There are no known parents. Saintpaulia ionantha subsp. Trailing cultivars and miniatures are also available. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. The results show that the mode of progression of the bacteria within the host plant is via the intercellular spaces of the parenchyma leaf and the petiole cortex. Saintpaulia ionantha hybrida, Flora serie, circa 1993. Descrizione. Kolehmainen, J., and Mutikainen, P. 2006: Reproductive ecology of three species of the endangered African violet (Saintpaulia) in the East Usambara Mts., Tanzania. In North Carolina if you don’t have your AC unit on high there should be enough humidity for the plants to thrive. A small recently divided African violet in a two inch pot with a 7 inch spread from the larger African violet (in the background). Saintpaulia is commonly potted and finished in 4-, 4.5- and 5-inch pot sizes. However, most of those have been reclassified as Saintpaulia ionantha, as they were deemed to be too similar to the ionantha species. * The Plant List does not attempt to … grandifolia (B.L. Rodigas. According to Flora of Tropical East Africa under the synonym Saintpaulia ionantha subsp. To date many varieties of African violet have been produced with different colors and shapes largely using conven-tional … Saintpaulia ionantha H.Wendl. Though numerous species of Saintpaulia have been named over the past century, DNA testing now limits the number of species to six, with eight subspecies. Methods that Effect the Development and Spread of Corynespora cassiicola (Berk. During potting, care should be taken not to plant crowns or tissue-cultured liners too deeply. Girl child plants leaf of saintpaulia young plant in pot. The chrysobactin biosynthetic mutants 3937 cbs-29 (Cbs-) and fct-18 (Fct-Cbs-) are impaired in the catechol pathway, the latter being also unable to transport the ferri-chrysobactin Abbreviations: Chrysobactin, N-(N2-(2,3-dihydroxybenzoyl)- The African violet Saintpaulia ionantha, subspecies ionantha, pictured in Tanzania in November 1997. & Curt.) Other articles where Saintpaulia ionantha is discussed: African violet: …are widely grown horticulturally, especially S. ionantha. The sunnier, warmer windows are better in the winter. One of the major problems associated with African violet care is excessive watering, which can lead to root or crown rot. It can be multiple-stemmed but usually grows as a single-crowned plant. This name is the accepted name of an infraspecific taxon * of the species Saintpaulia ionantha H.Wendl. The soil should be kept moist at all times, but it is desirable to keep the foliage dry. They should then be buried in sand, vermiculite or another substrate, but leaving the leaf limb out. Pests of Saintpaulia ionantha, damage symptoms and control methods are described. Read more about this topic: Saintpaulia. La violetta africana (Saintpaulia ionantha H.Wendl.) Antonyms for Saintpaulia ionantha. SAINTPAULIA IONANTHA. They grow well at temperatures above 18°C. All Rights Reserved. Plants do not usually bloom if there is not enough light. Saintpaulia Saintpaulia ionantha. pianta in vaso 11cm. Sinonimi; Petrocosmea ionantha (H.Wendl.) Saintpaulia ionantha, commonly called African violet, is one of the most satisfactory flowering houseplants. Flora of Tropical East Africa. Proper watering can be simplified by keeping the pots in watertight saucers or bowls into which a little water is poured every few days. The first species named, Saintpaulia ionantha, - in its many and varied forms - remains … Therefore, African violets are enjoyed as pot plants in homes and greenhouses and because they thrive under artificial light, in offices. In hot weather, plants are especially susceptible to rot. Updated August 8, 2020. African violets (Saintpaulia ionantha) #african violet #saintpaulia ionantha #flowers #house plants #purple. 1. Saintpaulia ionantha H.Wendl. Infestation of the nutrient solution did not result in any diseased Saintpaulia plant. Damage by Tyrophagus dimitianus is similar to thrips damage. Saintpaulia ionantha subsp. We found 10 dictionaries with English definitions that include the word saintpaulia ionantha: Click on the first link on a line below to go directly to a page where "saintpaulia ionantha" is defined. The soil must be well drained, light, fertile and very rich in organic matter. ionantha var. However, it is not a legal authority for statutory or regulatory purposes. … Le violette africane sono delle piccole perenni sempreverdi, originarie delle zone montuose tropicali della Tanzania e del Kenya; il nome botanico è Saintpaulia, e la specie più diffusa (i suoi ibridi) è saintpaulia ionantha. Gesneriaceae. fam. Perhaps one of the most popular houseplants, Saintpaulia ionantha, more commonly known as the African Violet, has stood the test of time and is still as popular as ever.These are popular both because African Violet care is straightforward and for the fact, they can bloom all year round. The violet-like flowers are borne in small panicles just above the foliage. It is … Water to keep the soil moist, but not soaked. Rose periwinkle or cayenne jasmine (Catharanthus roseus). Synonyms for Saintpaulia ionantha in Free Thesaurus. African violets adjust well to the warm temperatures and dry air of homes. Wei (Alan Windham, personal communication). 1). has been domesticated, bred and commercialized. Newer violets include not only cultivars with single flowers, but also those with semi-double or double rows of petals. Flora of Tropical East Africa. In this communication, we examine the fate of iron during soft rot pathogenesis caused by Erwinia chrysanthemi on its host, Saintpaulia ionantha. Pronunciation of Saintpaulia ionantha with 2 audio pronunciations, 2 synonyms, 1 meaning and more for Saintpaulia ionantha. Follow. The seeds of saintpaulias tend to be very tiny and hard to spread, plus they prefer a very specific medium to germinate. Damage by Tyrophagus dimitianus is similar to thrips damage. Although these plants tolerate drier air, they grow best in environments with high relative humidity. The best temperatures for African violets are about 60° F at night and up to 80 to 85° F during the day. The transplant can be done when the seedlings have 4 to 6 leaves. grandifolia (B.L. Windows facing north or east provide favorable light conditions and are preferable to those exposed to midday and afternoon sunshine during summer. African violets prefer indirect light. Containers, Cottage/Informal, Greenhouse, Indoor. Saintpaulia ionantha 'Garden News' Overview. 1 synonym for Saintpaulia ionantha: African violet. Flowers. & Curt.) Resource Type. A homogenization technique was developed for the multiplication of Saintpaulia ionantha. Saintpaulia ionantha difficilis. Peduncles 1–4 in. Your email address will not be published. Burtt) I. Darbysh. Plant sizes of Saintpaulia varieties include stan- Regular price Sale price £ 3.60 GBP. The plants become stunted at cool temperatures and are slow to recover even when put into a warm place. Saintpaulia ionantha, commonly called African violet, is one of the most satisfactory flowering houseplants. Saintpaulia tongwensis B.L.Burtt. saintpaulia ionantha Usambara. Saintpaulia ionantha subsp. They... Hi Jim, Thank you for the question. run away, water it or do a raindance. In an initial experiment, another species, Saintpaulia intermedia, was used for establish- ing the technique. Maceration symptoms and secretion of pectate lyases PelA, -D, and -E can be directly correlated to the spread of the bacteria. Saintpaulia kewensis C.B.Clarke. Stemless, hairy. It is a low, compact plant with attractive dark green, thick, hairy leaves up to 3 inches (7.5 cm) long. It commences in a localised region and its spread throughout the cortex is proportional to the spread of the bacteria and the degree of maceration within the tissue.Although the weakly and highly esterified homogalacturonans recognised by JIM5 and JIM7 are known to be homogeneously distributed within the walls of leaves of Saintpaulia plants, their enzymatic degradation by E. chrysanthemi is not uniform. grotei Gesneriaceae, Ian Darbyshire. cultivars, is spread through homes and offices all over the world, y et. Wall degradation is very heterogeneous. Add to Cart Genus - Saintpaulia. cultivars (Holtkamp Nos. Origin and Description. Saintpaulia ionantha subsp. It is a low, compact plant with attractive dark green, thick, hairy leaves. More than 70% of the Gerbera plants developed disease as a result of spread of the pathogen irrespective of the infestation method used. Poisonous for: not toxic to dogs, cats, or other smaller animals adopted in the home: Light African Violet. Descrizione. Saintpaulia ionantha (African violet) Index. Botanical name Streptocarpus (syn. Rarely grown outdoors, even in the tropics. African violets were discovered in 1892 in eastern Africa by Baron Walter von Saint Paul, and the genus was named Saintpaulia in his honor. The violet-like flowers are borne in small panicles just above the foliage. It has purple flowers and medium, green, slightly serrated, and quilted leaves. Girl child plants leaf of saintpaulia young plant in pot. Saintpaulia è un genere di piantegrasse della famiglia delle Gesneriaceae originarie dell'Africa.. Il genere prende il nome dal barone Walter Von Saint Paul-Illaire, il quale scoprì nel 1892 la specie più nota, la Saintpaulia ionantha, proveniente dalla Tanzania, più precisamente dalle montagne dell'Usambara. Informazioni. Saintpaulia) Group Houseplant Flowering time All year Planting time Any season Height and spread 5-7.5cm (2-4in) by 7-20cm (3-8in) Aspect Bright filtered or indirect light Hardiness Frost tender Difficulty Moderate Saintpaulia ionantha; Saintpaulia tongwensis; Flora . It’s … Saintpaulia ionantha (African violet) will reach a height of 0.2m and a spread of 0.3m after 2-5 years. ... African violet (Saintpaulia ionantha H. Drops of water on the leaves cause disfiguring, light-colored spots or rings. In this communication, we examine the fate of iron during soft rot pathogenesis caused by Erwinia chrysanthemi on its host, Saintpaulia ionantha. Saintpaulia tongwensis = S. ionantha ssp. These dark green leaves have long petioles (leaf stems) and are arranged in a basal cluster at the base of the plant. General (8 matching dictionaries) Saintpaulia ionantha: Vocabulary.com [home, info] The section was previously treated as a separate genus, Saintpaulia, but molecular phylogenetic studies showed that it was nested within the genus Streptocarpus. Facebook gives people the power to share and makes the world more open and connected. My African violet blooming again. The bright violet-blue flowers are up to 1.2 inches (3 cm) in diameter and borne in small panicles just above the foliage. Most violets are now grown in pasteurized soilless mixes. grotei is a tender perennial that grows up to 6 inches (15 cm) tall and up to 12 inches (30 cm) wide. Saintpaulia ionantha Wendl. Reference Sources. velutina; The genus is most closely related to Streptocarpus, with recent phylogenetic studies suggesting it has evolved directly from subgenus Streptocarpella. Close-up of a pot purple Saintpaulia ionantha. The Clivia Miniata is indigenous to South Africa and largely found in woodlands. It is a compact plant with attractive dark green, thick, hairy leaves. Res. 19, 49, 69, 282 and 283). Plants propagated from leaves begin to bloom 6 to 9 months after planting. Position - Indirect light. La violetta africana il cui nome scientifico è Saintpaulia ionantha talvolta indicato anche come S. jonantha è una pianta erbacea con origini africane in particolare della Tanzania, appartiene alla famiglia delle Gesneriaceae.. È una specie perenne che forma delle rosette basali di foglie da cui dipartono numerosi steli con fiori. Center, Apopka FL 32703. long. in the genus Saintpaulia (family Gesneriaceae). Required fields are marked *, Flowering Dogwood (Cornus florida f. rubra), How to pot japanese maples grown from seed. Plants of small size, grow up to about 15 cm in height, and can spread from a few centimeters to more than 40 cm. Saintpaulia ionantha (African violet) will reach a height of 0.2m and a spread of 0.3m after 2-5 years.. The role of endoglucanases (endoglucanases Z and Y) in Erwinia chrysanthemi pathogenicity on Saintpaulia ionantha was assessed by mutagenizing cloned cel genes (celZ and celY) and recombining them with the chromosomal alleles. Saintpaulia Ionantha is on Facebook. Streptocarpus ionanthus (synonym Saintpaulia ionantha) is a species of Streptocarpus in the section Saintpaulia, commonly known as an African violet.It is native to eastern and southwestern Tanzania.. Infraspecific taxa. Spread of Phytophthora root and crown rot in three pot plant species was studied on ebb-and-flow benches where the nutrient solution was recirculated. 389, Bureau … How to say Saintpaulia ionantha in English? Widely grown in pots on the windowsill and in well-lit interiors of homes, African violets can also be grown in shaded gardens. Unrooted leaf cutting of Saintpaulia ionantha with non-inoculated leaf on left, and inoculated leaf showing greasy brown necrosis on right. Fertilizer: little to medium fertilizer except when it isn’t blooming or stopped growing outright. è una pianta succulenta appartenente alla famiglia delle Gesneriaceae. The members of Saintpaulia are small perennial herbs with thick, hairy, ovate leaves. Abstract. The substrate should be composed primarily of peat amended with pine bark, Other problems may include Botrytis blight, powdery mildew, cyclamen mites, mealybug, aphids and thrips. Direct sunlight can burn their leaves, possibly killing the plant. Your email address will not be published. Grows best in good (but not direct light) in a frost-free area. - African Journal of Ecology, in press. Two species, S. ionantha and S. confusa, are parents of most of the hybrids lines available today.Cultivars are available in many floral colors including reds, blues, purples, lavenders, pinks, whites, and bicolors (Fig. New plant in house, care, hobby, houseplant, potted friends. Cut the leaves keeping the petiole (the stems of the leaves). Sottospecie; Vedi testo. Saintpaulia in his honor. Mi violeta africana está floreciendo otra vez. Identity Taxonomic Tree List of Pests Uses List Summary. I.Darbysh. Roots of Saintpaulia are very fine and require a light-weight, well-aerated, well-drained substrate. ¹Associate Plant Pathologist, University of Florida, Agr. The most important pest is Frankliniella occidentalis. Besides various shades of blue-violet, there are also pink, fuchsia, and white cultivars. Mature size - Max. There are a wide variety of colors and patterns in African violet flowers. MOSCOW, RUSSIA - AUGUST 10, 2019: Postage stamp printed in Russia shows Saintpaulia ionantha hybrida. 6 members, native to Africa (e. g. Kenya, Tanzania). Petals from unopened flower buds were used as initial explants, which were homogenized with a blender in distilled water after the formation of adventitious shoots. Emphasis should be on good soil drainage because free water on the surface may cause decay at the crown or at the bases of the leaf stalks. in the genus Saintpaulia (family Gesneriaceae ). The spread of soft rot caused by this enterobacterium was previously shown to depend on a functional genetic locus encoding a high-affinity iron assimilation system involving the catechol-type siderophore chrysobactin. Hello, Thank you for your message. Low, evergreen herbaceous perennial plant, one of the most satisfactory flowering houseplants. grotei), of the East Usambara Mountains, Tanzania. The violet-like flowers are bilaterally symmetric with five… What you need to know is that the vast majority of African violets are derived from Saintpaulia ionantha. It's often the main reason for buying the plant after all. width 20cm. Cultivars are available in many floral colors including reds, blues, purples, lavenders, pinks, whites, and bicolors (Fig. & Curt.) ionantha [family GESNERIACEAE] Herbarium. However, there is no problem in watering them normally, as long as the leaves are not soaked in cold water. Burtt) I. Darbysh. Condizioni di Vendita Prima di procedere con l’acquisto leggete le condizioni di vendita. Flora of Tropical East Africa, page 1, … It is a perennial stemless species that forms dense rosettes of ovate-shaped leaves carried by long petioles. As of March 2020, Plants of the World Online accepted the following subspecies and varieties. They are sensitive to both excess and lack of water. threatened endemic plant, the African violet (Saintpaulia ionantha ssp. Entry From. The leaves may vary slightly in shape, but they always have a long petiole, are thick, succulent and covered with a layer that give it a velvety appearance. Contribution No. On the other hand, very dark leaves, very thin and with very long petioles, are signs of poor and inadequate lighting. What will you do? Clivia Miniata. Symptoms of Corynespora leaf spot include rapidly expanding circular lesions on the surface of the leaves and petioles. Join Facebook to connect with Saintpaulia Ionantha and others you may know. Saintpaulia ionantha Family: Gesneriaceae African violet Origin: Tropical East Africa. Cultivation. greenlook-garden. The thripid can be controlled with methamidophos, deltamethrin or endosulfan. That was a good... How to propagate plants by hardwood cuttings. About us | Terms and Conditions | Shipping and Delivery | Returns Policy | Contact usDear Plants © 2021. While they require good light, direct sunlight is not necessary. Leaves many; blade 1 1/2 by 1 1/4 in., ovate or subcordate, thin in texture, regularly crenate, clad on both surfaces with many small hairs and a few scattered very long multicellular white hairs; petioles 1–2 in. February 28, 2021 Photo taken by Wendy Diaz Water the roots not the plant and keep the foliage dry. Saintpaulia #1088389. African violets don’t tolerate low temperatures and frosts. Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. 2006. Saintpaulia ionantha is a tender, herbaceous, flowering, indoor perennialup to 6 inches (15 cm) tall and up to 12 inches (30 cm) wide. African violets are plants of the genus Saintpaulia now included in Streptocarpus. Attacks can be recognized early by using sticky traps or indicator plants. Cultural Control Methods that Effect the Development and Spread of Corynespora cassiicola (Berk. African violets are members of the gesneriad family and hail from the tropical rainforest region of east Africa near the border of Tanzania and Kenya. The plant looks dry and there is a cup of water nearby. Wendland thought that the introduction consisted of one species, ionantha; Saintpaulia velutina = S. ionantha ssp. SaintPaulia ionantha, African Violets, Streptocarpus: Maximum Growth: as much as 16” in diameter for large plants and 3” in diameter for smaller ones. Pests of Saintpaulia ionantha, damage symptoms and control methods are described. Plants kept in good growing condition flower almost continuously.Genus name honors a German, Baron Walter von Saint Paul-Illaire (1860-1910), who collected the first African violet (S. ionantha).Specific epithet means with violet-colored flowers. Wei on African violet (Saintpaulia ionantha Wendl.)." Saving Saintpaulia, the African violet (2016, June 22) ... How to Spread … Suggested uses. The ideal soil pH ranges from 6 to 6.5. The plant species and their respective pathogens were: Saintpaulia ionantha – P. nicotianae, Gerbera jamesonii – P. cryptogea, and Spathiphyllum wallissii – Phytophthora spp. In recent years, a large commercial grower of African violets (Saintpaulia ionantha Wendl.) Group - Species. Yes there are flowers on African Violets! A good soilless mix is made up of 3 parts sphagnum peat moss, 2 parts vermiculite and 1 part perlite, with some lime added to balance the acidity of the peat moss. A summary of what there is to know: Name – Saintpaulia ionantha Family – Gesneriaceae Type – indoor plant Height – 8 to 12 inches (20 to 30 cm) indoors Exposure – veiled Foliage – evergreen Flowering – all year round. Tiny insects called thrips are carriers of even tinier viral pathogens that can infect African violets (Saintpaulia ionantha) with impatiens necrotic spot virus, or INSV. on Saintpaulia ionantha . Streptocarpus ionanthus ( synonym Saintpaulia ionantha) is a species of Streptocarpus in the section Saintpaulia, commonly known as an African violet. Maybe 3 or 4 years... Hello, I found some seeds that i had forgoten about. African violet Saintpaulia ionantha inflorescence macro on white background. in middle Tennessee has experienced epidemics of Corynespora leaf spot caused by Corynespora cassiicola (Berk. Bicolored flowers and those with a contrasting border are popular. Almost all African Violets houseplants are quite small and compact, you do get the odd variety which is quite spread, however the typical height is around 12.5cm / 5in, spreading to around 25cm / 10in across. African violets are small plants from the rainforests of Tanzania, which can also be found in Kenya. Wei on African violet (Saintpaulia ionantha Wendl.) Some people recommend watering the pots just underneath, placing them in a low container with water, for a few minutes, until the soil surface is moist. Hillary Dawn Ross University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_gradthes Part of the Plant Pathology Commons Recommended Citation Saintpaulia is a section within Streptocarpus subgenus Streptocarpella consisting of about ten species of herbaceous perennial flowering plants in the family Gesneriaceae, native to Tanzania and adjacent southeastern Kenya in eastern tropical Africa. Violetta africana. The soil for growing African violets must be porous to allow surplus water to pass through readily. long, 1–6-flowered. & Curt.) Their African origin and the appearance of their flowers led these plants to be popularly known as African violets, although they do not belong to the Viola genus of true violets. Scientific name: Saintpaulia ionantha, Streptocarpus Plant type: Perennials Height: 10cm - 50cm Spread: 10cm - 50cm Flower color: Pink, Purple Sunlight: Partial shade Moisture: Well drained Planting type: Containers & Pots. I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the 145 notes. Wei (Alan Windham, personal communication). MATERIALS AND METHODS The study includes five commercial African violet (Saintpaulia ionantha Wendl.) This perennial produces light green leaves with double, rosette-shaped, white flowers, sometimes tinged light purple.