Journal articleThrixspermum obyrneanum (sect. Thrixspermum) is a new species described from Narathiwat Province, southern Thailand, and from Kelantan, Peninsular Malaysia. It is morphologically similar to T. leucarachne but differs in the much shorter sepals and petals, tepals and lip pale yellow, lateral lobes of the lip 6–7 mm long, broadly triangular...
Toolmal, Nopparut ; Teck, Ong Poh ; Schuiteman, André
Systematics and conservation of British and Irish orchids: a "state of the union" assessment to accompany Atlas 2020.Prompted by concurrent completion of the latest plant atlas for Britain and Ireland, the orchid flora of these islands is reviewed in detail, focusing on 21st century progress in both systematics research and formal conservation categorisation under IUCN criteria. DNA-based phylogenies consistently circumscribe monophyletic groups that constitute obvious genera, though...