Habenaria mandersii Collett & Hemsl. 1890
Drawing by © Seidenfaden
Drawing by © The Hoala Vietnam Orchid Website
LATE 
Common Name Manders' Habenaria [Original Collector of species later 1800's]
Flower Size .6" [1.5 cm]
Found in Myanmar, Thailand, Laos, Cambodia and Vietnam in in deciduous and open pine forests as well as grassy clearings in forests at elevations around 280 to 1025 meters as a medium sized, hot to warm growing terrestrial with erect stems carrying 4 to 5, cauline, scattered or clustered in the lower half of the stem, lanceolate-elliptic, subacute to acute, mucronate leaves grading above into 8 to 10, lanceolate-elliptic, acuminate, margins sometimes denticulate sterile bracts that blooms in the late summer and fall on an erect, terminal, glabrous, 11.6 to 22" [29 to 55 cm] long, demi-dense to lax, few flowered inflorescence with a 1.6 to 4" [4 to 10 cm] long rachis and lanceolate, acuminate to acute floral bracts.
There are 3 species considered to be very similar and refered to as the H hosseusii group, H hosseusii from Thailand, H dentirostrata from Laos and H mandersii occuring from Myanmar, Laos, Thailand and Vietnam.
Synonyms Kraenzlinorchis mandersii (Collett & Hemsl.) Szlach. 2004
References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Burma Grant 1895; Flore Generale de Indo-Chine Volume 6 Gagnepain 1934; Bulletin du Museum National d'Histoire Naturelle % No 71 Seidenfaden 1972 drawing good; Contributions to a Revision of the Orchid Flora of Cambodia, Laos and Vietnam Seidenfaden 1975; Dansk Botanisk Arkiv Bind 31 #3 Orchid Genera in Thailand V Orchidoideae Seidenfaden 1977 drawing fide; Identification of the Orchids [Orchidaceae Juss.] Vietnam Averyanov 1994; Gard. Bull. Singapore 60: 55 Kurzweil 2008 drawing/photo fide; Flora Of Thailand Orchidaceae Vol 12 Part 1 Pedersen, Kurzweil, Suddee & Cribb 2011 drawing/photo fide
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