Peristylus prainii (Hook.f.) Kraenzl.1898

Plant and Inflorescence Photo by Tripetch and Trekking Thai WebPage

Full shade HotWarm LATESpring Summer

Common Name Prain's Peristylus [English Botanist in India 1800's]

Flower Size .15 to .2" [3 to 5 mm]

Found in Assam, eastern Himalayas, Myanmar, Thailand and Vietnam in seasonal evergreen, deciduous and pine forests at elevations 150 to 1000 meters as a small to medium sized, hot to warm growing terrestrial with a narrowly fusiform tuber giving rise to a slender, bracteate above stem with 2 to 3, basal, tubular, imbricating sheaths and carrying 3 to 4, distant, oblong to ovate-oblong, acute, sessile, basally clasping leaves that blooms in the late spring and summer on an erect, glabrous, 2 to 4.4" [5 to 11 cm] long, laxly to subdensely many flowered inflorescence with linear-lanceolate to lanceolate, acuminate floral bracts.

Synonyms *Habenaria prainii Hook.f.1890

References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Burma Grant 1895 as Habenaria prainii; The Orchids of Sikkim-Himalaya Part 1 King & Pantling 1898 as Habenaria prainii drawing fide; Flore Generale de Indo-Chine Volume 6 Gagnepain 1934 as Habenaria prainii; The Orchids of Thailand Seidenfaden & Smitnand 1959; The Orchids of Thailand Seidenfaden & Smitinand 1964 corrections; Contributions to a Revision of the Orchid Flora of Cambodia, Laos and Vietnam Seidenfaden 1975 as Habenaria prainii; Indian Orchids: Guide to Identification and Culture Pradhan 1976 drawing fide; 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; Orchids of Bhutan Pearce & Cribb 2002; Orchids of India A Glimpse Misra 2007; Flora Of Thailand Orchidaceae Vol 12 Part 1 Pedersen, Kurzweil, Suddee & Cribb 2011 drawing fide