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Asclepiadoideae
The Asclepiadoideae are a subfamily of plants in the family Apocynaceae. Formerly, they were treated as a separate family under the name Asclepiadaceae, e.g. by APG II, and known as the milkweed family. They form a group of perennial herbs, twining shrubs, lianas or rarely trees but notably also contain a significant number of leafless stem succulents. The name comes from the type genus ''Asclepias'' (milkweeds). There are 348 genera, with about 2,900 species. They are mainly located in the tropics to subtropics, especially in Africa and South America. The florally advanced tribe Stapelieae within this family contains the relatively familiar stem succulent genera such as ''Huernia, Stapelia'' and ''Hoodia''. They are remarkable for the complex mechanisms they have developed for pollination, which independently parallel the unrelated Orchidaceae, especially in the grouping of their pollen into pollinia. The fragrance from the flowers, often called "carrion", attracts flies. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apocynaceae
Apocynaceae (from ''Apocynum'', Greek for "dog-away") is a family of flowering plants that includes trees, shrubs, herbs, stem succulents, and vines, commonly known as the dogbane family, because some taxa were used as dog poison Members of the family are native to the European, Asian, African, Australian, and American tropics or subtropics, with some temperate members. The former family Asclepiadaceae (now known as Asclepiadoideae) is considered a subfamily of Apocynaceae and contains 348 genera. A list of Apocynaceae genera may be found here. Many species are tall trees found in tropical forests, but some grow in tropical dry (xeric) environments. Also perennial herbs from temperate zones occur. Many of these plants have milky latex, and many species are poisonous if ingested, the family being rich in genera containing alkaloids and cardiac glycosides, those containing the latter often finding use as arrow poisons. Some genera of Apocynaceae, such as '' Adenium'', bleed clea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollinia
A pollinium (plural pollinia) is a coherent mass of pollen grains in a plant that are the product of only one anther, but are transferred, during pollination, as a single unit. This is regularly seen in plants such as orchids and many species of milkweeds (Asclepiadoideae). Usage of the term differs: in some orchids two masses of pollen are well attached to one another, but in other orchids there are two halves (with two separate viscidia) each of which is sometimes referred to as a pollinium. Most orchids have waxy pollinia. These are connected to one or two elongate stipes, which in turn are attached to a sticky viscidium, a disc-shaped structure that sticks to a visiting insect. Some orchid genera have mealy pollinia. These are tapering into a caudicle (stalk), attached to the viscidium. They extend into the middle section of the column. The pollinarium is a collective term that means either (1) the complete set of pollinia from all the anthers of a flower, as in Asclepiadoideae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoodia
''Hoodia'' (; known locally as "ghaap" or "bobbejaanghaap") is a genus of flowering plants in the family Apocynaceae, under the subfamily Asclepiadoideae, native to Southern Africa. One species of ''Hoodia'' in particular, ''Hoodia gordonii'', has achieved a degree of fame and controversy, after being investigated for use as a possible appetite suppressant. Description The group was first described as a genus in 1844. Hoodia are stem succulents, described as "cactiform" because of their remarkable similarity to the unrelated cactus family. They have a branching, shrub-like form, and the largest species (''Hoodia parviflora'') can grow to the size of a tree — over in height. The flowers are extremely variable in size — from less than 1 cm, to almost 20 cm in diameter, depending on the species. Flowers appear in large numbers, always near the tops of the stems. Those of larger-flowered species (such as ''Hoodia gordonii'') are often a papery pink-tan colour, pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microloma Calycinum PICT2490
''Microloma'' is a small genus of ''Ceropegia''-like twiners and twiggy bushes occurring in mainly arid or fynbos regions in South Africa. They are generally nondescript when not in bloom, but the flowers of most species are incongruously decorative. Overview ''Microloma'' R. Br. in Mem. Werner. Soc.1: 53, (1809), is a genus of herbaceous perennial, dicotyledonous plants . ''Microloma'' species were originally described as members of the genus Ceropegia, in the family Asclepiadaceae, but Brown separated them and created the new genus, still in the family Asclepiadaceae. More recently the Asclepiadaceae have been re-classified as the subfamily Asclepiadoideae of the dogbane family Apocynaceae. Common names of ''Microloma'' species are various and regional; Manning mentions "wax creeper" and "melktou" (literally "milk-string", a curious name because the plants do not in general produce latex). Other names include "wax twiner" and "bokhorinkies" (literally "little goat- or antel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huernia
The genus ''Huernia'' (family Apocynaceae, subfamily Asclepiadoideae) consists of perennial, stem succulents from Eastern and Southern Africa and Arabia, first described as a genus in 1810.Brown, Robert. 1810. On the Asclepiadeae 11 The flowers are five-lobed, usually somewhat more funnel- or bell-shaped than in the closely related genus ''Stapelia'', and often striped vividly in contrasting colors or tones, some glossy, others matte and wrinkled depending on the species concerned. Frequently the flowers are colored a variation of red, yellow or brown. To pollinate, the flowers attract flies by emitting a scent similar to that of carrion. The genus is considered close to the genera ''Stapelia'' and ''Hoodia''. Phylogenetic studies have shown the genus to be monophyletic, and most closely related to the genus '' Tavaresia'', and to a widespread branch of stapeliads comprising the genera ''Orbea'', ''Piaranthus'' and ''Stapelia''.P. Bruyns, C. Klak, P. Hanacek: ''Evolution of the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stapelieae
The genera of plants within the tribe Stapelieae are all to varying degrees stem succulents. Many of the species resemble cacti, though are not closely related, as an example of convergent evolution. The stems are often angular, mostly four-angled in cross-section, but in some species there are six or more, with some species of ''Hoodia'' having more than thirty angles. In size they vary from less than 2.5 cm/1" in length to over 2 m/6" tall. The leaves are in most species reduced to rudiments, sometimes hardened and thorn-like, arranged on bumps or tubercles on the angles. Some species, however, still have recognisable leaves, most notably the Indian species '' Frerea indica'', and some members of ''Tridentea''. Stapeliads are most abundant in warm, dry climates. In Africa, there are two separate regions where Stapeliads have most diversified: northeast Africa, and Southern Africa. Several species are endemic to the small island of Socotra off the Horn of Africa. The Arab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asclepias
''Asclepias'' is a genus of herbaceous, perennial, flowering plants known as milkweeds, named for their latex, a milky substance containing cardiac glycosides termed cardenolides, exuded where cells are damaged. Most species are toxic to humans and many other species, primarily due to the presence of cardenolides, although, as with many such plants, there are species that feed upon them (e.g. their leaves) and from them (e.g. their nectar). Most notable are monarch butterflies, who use and require certain milkweeds as host plants for their larvae. The genus contains over 200 species distributed broadly across Africa, North America, and South America. It previously belonged to the family Asclepiadaceae, which is now classified as the subfamily Asclepiadoideae of the dogbane family, Apocynaceae. The genus was formally described by Carl Linnaeus in 1753, who named it after Asclepius, the Greek god of healing. Flowers Members of the genus produce some of the most complex flowe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blepharodon
''Blepharodon'' is a genus of plant in the family Apocynaceae, first described as a genus in 1844. They are native primarily to South America, with one species extending into Central America and Mexico.Steyermark, J. A. 1995. Flora of the Venezuelan Guayana Project ;Species ;formerly included transferred to other genera ''(Ditassa ''Ditassa'' is a genus of plant in the family Apocynaceae, first described as a genus in 1810. It is native to South America. ;Species ;formerly included transferred to other genera ''(Blepharodon, Cynanchum, Macroditassa, Metastelma, Minari ..., Macroditassa, Minaria, Nephradenia)'' References {{Taxonbar, from=Q5730232 Asclepiadoideae Apocynaceae genera Taxa named by Joseph Decaisne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aidomene
''Asclepias'' is a genus of herbaceous, perennial plant, perennial, flowering plants known as milkweeds, named for their latex, a milky substance containing cardiac glycosides termed cardenolides, exuded where cells are damaged. Most species are toxic to humans and many other species, primarily due to the presence of cardenolides, although, as with many such plants, there are species that feed upon them (e.g. their leaves) and from them (e.g. their nectar). Most notable are Monarch butterfly, monarch butterflies, who use and require certain milkweeds as host plants for their Larva, larvae. The genus contains over 200 species distributed broadly across Africa, North America, and South America. It previously belonged to the family (biology), family Asclepiadaceae, which is now classified as the Family (biology), subfamily Asclepiadoideae of the dogbane family, Apocynaceae. The genus was formally described by Carl Linnaeus in 1753, who named it after Asclepius, the Greek god of he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araujia
''Araujia'' is a small genus of perennial vines in the dogbane family first described as a genus in 1817. The group is native to South America.Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Memoirs of the Botanical Survey of South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2). ;Species # ''Araujia angustifolia'' (Hook. & Arn.) Steud. - Brazil, Paraguay, Uruguay, NE Argentina # ''Araujia graveolens'' (Lindl.) Mast. - Brazil # ''Araujia herzogii'' (Schltr.) Fontella & Goyder - Bolivia # ''Araujia hortorum'' E.Fourn. - Brazil, Paraguay, Uruguay, NE Argentina # ''Araujia megapotamica'' (Spreng.) G.Don - Brazil, Uruguay, NE Argentina # ''Araujia plumosa'' Schltr. - Brazil, Paraguay, Bolivia, NW Argentina # ''Araujia sericifera'' Brot. - white bladderflower, cruel vine - Peru, Brazil; naturalized in parts of South Africa + United States # ''Araujia stuckertian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidoglossum
''Aspidoglossum'' is a genus of plants in the family Apocynaceae, first described as a genus in 1838. It is native to Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ....Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Memoirs of the Botanical Survey of South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2). ;Accepted species References {{Taxonbar, from=Q5709469 Apocynaceae genera Asclepiadoideae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astephanus
''Astephanus'' is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1810. ;Species The Plant List maintained by the Kew Gardens in London currently (September 2014) lists 53 species names that have been placed in the genus ''Astephanus'' since 1810. The majority of these are categorized as "unresolved," meaning that the appropriate classification is still open to debate. Only the following 3 are listed as "accepted." # ''Astephanus geminiflorus'' Decne. - Chile # ''Astephanus triflorus'' (L.f.) R.Br. - South Africa # ''Astephanus zeyheri'' Turcz. - South Africa References {{Taxonbar, from=Q5709600 Apocynaceae genera Asclepiadoideae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
