Problematic specimens turn out to be two undescribed species of Bignonia (Bignoniaceae)
نویسندگان
چکیده
Bignonia comprises 29 species of lianas characterized by eight phloem wedges, leaves usually 2-foliolate, mostly simple tendrils and opaque seed wings. The analysis of herbarium specimens in preparation for a taxonomic revision of the genus led to the recognition of two new species: (i) Bignonia cararensis from Costa Rica, characterized by a thyrse with lateral compound dichasia and lack of interpetiolar ridge, and (ii) Bignonia sanctae-crucis from Bolivia and Brazil, distinguishable by its membranous leaflets, membranous calyx and small fruits. We provide detailed descriptions, illustrations, distribution maps, initial conservation status assessments, and comparisons of the newly described taxa with closely related species.
منابع مشابه
Tecoma stan: An Important Medicinal Plant
The plant Tecoma stans (L.) Kunth, belongs to family Bignoniaceae and commonly known as “Piliya” in Rajasthan is a dicotyledonous herb popularly grown for its flowers as an ornamental /garden plant in normal gardens and temples. It is also known as Bignonia stans L. It has wide range of medicinal and pharmacological applications. Almost all parts (leaves, root, flower, seed, fruit, bark) of the...
متن کاملTwo new species of Neozoanthus (Cnidaria, Hexacorallia, Zoantharia) from the Pacific
The zoanthid genus Neozoanthus was originally described in 1972 from a single species in Madagascar. This monotypic genus was placed within its own family, Neozoanthidae, given its unusual characters of only partial sand encrustation, and an endodermal sphincter muscle combined with a brachycnemic mesenterial arrangement. Recently, undescribed specimens of Neozoanthus were discovered thousands ...
متن کاملReinterpretation of the nomenclatural type of Pseudobombax heteromorphum (Malvaceae, Bombacoideae) reveals an overlooked new species from Bolivia
In the course of a taxonomic revision of Pseudobombax Dugand, one of us (JGCS) frequently has observed herbarium specimens of Bombacoideae that comprise a mixture of different Angiosperm families. In particular, Pseudobombax heteromorphum (Kuntze) A. Robyns, a frequent name in checklists of the Bolivian flora, is based on type material of Bombax heteromorphum Kuntze that is clearly a mixture of...
متن کاملNeotypification of Clytostoma sciuripabulum Hovel.
A neotype is designated for Clytostoma sciuripabulum the basionym of Bignonia sciuripabulum, the presently accepted name of the species.
متن کاملSTUDY OF CHRQMOSOMES AND SOLUBLE PROTEINS OF RHMYA STRICTA DECASINE. AND NERIUM OLEANDER L.
Electrophoresis of proteins, especially seed proteins, and karyological studies are useful techniques for determining species and solving the problems of modern taxonomy. The present study was carried out on two species of the Apocynaceae family, Rhazya stricta Decasine and Nerium 01eancder.L. Seed samples of these two genera were taken from the south-east of Iran and SDS-PAGE analysis of th...
متن کامل