Platanthera angustata (Blume) Lindl. 1835
Closer Still Photo courtesy of André Schuiteman, Dr. E.F. de Vogel and Jaap Vermeulenand Their Netherlands National Herbarium Website
Plant Ensitu in Cameron Heights Malaysia Photo courtesy of David Kuehn
To 
Common Name or Meaning The Thin Plantanthera
Flower Size 1/2" [1.25 cm]
Found in Japan, Thailand, Vietnam, Borneo Java, Sumatra, Lesser Sunda Islands, Malaysia, Sulawesi, New Guinea, Moluccas and the Philippines in moss under trees on exposed upper mountain ridges at elevations of 1500 to 2800 meters as a medium to large sized, warm to cold growing terrestrial orchid with roots that are thick and fleshy giving rise to an erect stem carrying light green, veins darker, ovate, acute, smaller when higher up leaves with the lowest being petiolate and the others being sessile that blooms in the fall on an erect, terminal, 12" to 24" [30 to 60 cm] long, few to several flowered inflorescence with ovate, acuminate floral bracts and holding the flowers facing the ground.
Synonyms Habenaria amesiana (Schltr.) Ames 1915; Habenaria angustata Kuntze 1891; Habenaria elmeri Ames 1912; Habenaria halconensis Ames 1907; *Mecosa angustata Blume 1825; Platanthera amamiana Ohwi 1937; Platanthera amesiana Schltr. 1911; Platanthera elmeri (Ames) Schltr. 1919; Platanthera hachijoensis Honda 1935; Platanthera halconensis (Ames) Schltr. 1911; Platanthera mandarinorum var. amamiana (Ohwi) K.Inoue 1982; Platanthera mandarinorum f. hachijoensis (Honda) M.Hiroe 1971
References W3 Tropicos, Kew Monocot list , IPNI ; Orchidiana Philipiniana Vol 1 Valmayor 1984; Orchidiana Philipiniana Vol 1 Valmayor 1984 as P elmeri; Orchidiana Philipiniana Vol 1 Valmayor 1984 as P halconensis; Orchids of Java Comber 1990; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Orchids of Sumatra Comber 2001; Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003;
