Habenaria arianae Geerinck 1977 SECTION Replicatae Kraenzl.
Collection Sheets and Photo by © Jany Renz and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
TYPE Drawing by © M Allard del/Geerink
LATE 
EARLY 
Common Name Ariana's Habenaria
Flower Size .4" [1 cm]
Found in Burundi, Zaire, Tanzania, Malawi and Angola in wet grasslands and seepage areas with shallow soil over rock at elevations of 600 to 2300 meters as a miniature to small sized, warm to cold growing terrestrial with ovoid to elliptic tubers giving rise to an erect stem carrying 10 to 20, lowermost 2 to 3 are sheathing leaves white with dark green reticulation, the middle 5 to 8 are semi-erect, linear, basally widening and the upper few are bract-like adpressed to the stem leaves that blooms in the late summer and early fall on a terminal, erect, 1.6 to 2.8" [4 to 7 cm] long, densely several to many flowered inflorescence with longer to as long as the ovary floral bracts.
Differs from all others in Africa by the papillose lip.
Synonyms Bilabrella arianae (Geerinck) Szlach. & Kras 2009; Bilabrella williamsonii (P.J.Cribb) Szlach. & Kras 2009; Habenaria williamsonii P.J.Cribb 1977
References W3 Tropicos, Kew Monocot list , IPNI ;
*Notes Taxon. Orchid. Afr. Centr. 5(Habenaria): 7 Geerinck 1977
Kew Bull. 32: 143 P J Cribb 1977 as H williamsonii;
Flore D'Afrique Centrale [Zaire- Rwands - Burundi] Orhidaceae Premeir parte Geerink 1984 drawing fide;
Flora of Zambesiaca Vol 11 Part 1 Orchidaceae Pope 1995;
Richardiana 9: 158 Szlach. & Kras 2009 as Bilabrella arianae
Richardiana 9: 158 Szlach. & Kras 2009 as Bilabrella williamsonii;
Orchidaceae of West Central Africa Vol 1: 217 Szlatchecko etal 2010 as Bilabrella arianae drawing good;
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