ORCHIDACEJS 



This species is represented by four fragmentary specimens, 

 the flowers of which show some variability in having ciUolate or 

 eciUolate petals, and perianth of variable texture. However, it is 

 practicable to treat the material as representative of a single spe- 

 cies. It is unlike its near relatives H. borneensis Ridl., H. Stapjii 

 (Kranzl.), jff. kinabaluensis (Kriinzl.), and H. Gibbsiae (Rolfe), 

 in that it does not possess distinct basal leaves and has strongly 

 carinate veins on the dorsal surface of the sepals. 



Habenaria borneensis Ridl. is a much taller plant with basal 

 lobules on the Up. Unlike H. Stapfii (KranzL), H. ci'assinervia 

 has obtuse petals and a linear instead of an ovate-lanceolate lip. 

 H. kinabaluensis (Kranzl.) is apparently much taller and has a 

 differently shaped dorsal sepal, while the lip and spur are of dif- 

 ferent relative length. It is most closely related to H. Gibbsiae 

 (Rolfe), which not only has a taller scape with prominent basal 

 leaves, but apparently ecarinate sepals and a subacute dorsal 

 sepal. H. halconensis Ames, which is also an allied species, has 

 a much larger perianth and differently shaped Up. 

 Pakka, Clemens 221^ November 1915. Flower green. 



4. Habenaria Gibbsiae {Rolfe) A. <§ S. comb. nov. Platan- 



thera Gibbsiae Rolfe in Gibbs in Journ. Linn. Soc. 42 (1914) 160. 



Pakka, below Pakka, Gibhs Jf258^ February 1910. In open scrub, 9000 

 feet altitude. Terrestrial, flowers yellow. 



5. Habenaria gigas Hook,f Fl. Brit. Ind. 6 (1890) 160. var. 



papuana {J. J, Sm.) A. &^ S. comb. nov. Peristylus grandis Bl. 



var. papuanus J. J. Sm. in Nova Guinea 8 (1909) 3, 1. 1. 1. 



KiAU, Clemens 4'^, November 1915. 3000 feet altitude. Terrestrial, 

 flowers greenish yellow. [Spur very short,] 



6. Habenaria goodyeroides Don Prodr. (1825) 25. 



KiAU, Haslam, July- August 1916. 3000 feet altitude. Terrestrial, three 

 feet in height, flower white, slightly fragrant. 



[8] 



