Peristylus hallieri J.J.Sm. 1909
Photo by Copyright © Rogier Van Vugt and His PBase Orchid Photo Website
Photo by André Schuiteman, courtesy of Dr. E.F. de Vogel and Jaap Vermeulen and Their Netherlands National Herbarium Website
Plant and Flowers in situ Borneo
Photo © by Th. Nordhausen and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
To 
Common Name or Meaning Hallier's Peristylus [Collected type early 1900's]
Flower Size to 3/4" [to 2 cm]
Found only in Borneo in lowland forests, open secondary roadside vegetation, rough mossy ground, landslips and sandy areas beside or on rocks in rivers as a small to medium sized, terrestrial orchid at elevations of 50 to 1600 meters as a small sized, hot to cool growing erect, tuberous terrestrial orchid with a stem carrying 12, basally arranged, narrowly elliptic, ensiform, acuminate, mucronate, 3 nerved, narrowing below into the leaf bearing sheath and blooming in the spring, summer and fall on a terminal, laxly many flowered, to 10.2 to 12" [to 26 to 30 cm] long, racemose inflorescence with several, non-floriferous bracts and narrowly ovate-elliptic, acuminate floral bracts.
Synonyms Habenaria hallieri (J.J.Sm.) Schltr. 1911
References W3 Tropicos, Kew Monocot list , IPNI ; The Plants of Mount Kinabalu Vol 2 Orchids Beaman, Wood, Beaman & Beaman 1993 photo fide; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Orchids of Sarawak Beaman, Wood & Beaman etal 2001; Orchids of Borneo Vol 4 Woods 2003 drawing/photo fide; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 drawing fide to the first photo/photo fide to the first photo;
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