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Sumatra: Benkoelen, Boekit Barisan, Rimbo Pengadang, 

 1000 m. (Exp. E. Jacob son 1916, Ajoeb, liv. pi. cuit, in 

 Hort. Bog. sub n. 71S|. 



The flowers of the species of the section Strongijle are fre- 

 quently very uniform in shape while the végétative parts oflfer 

 good distinguishable characters. 



The tlûwers of 1). adpressifoUum look much the same like 

 those of 1). capitellatum J. J. S., but the species is readely distinguish- 

 ed by the leaves being pressed against the stem and the solitary 

 ilowers. 



Description from a living spécimen. 



Ilendl'oliÊïEni isect. Strongyle) Vaillllll!>i|îj"ii J- J 



S. n. sp. 



Gaules numerosi, approximati, tenues, teretes, leviter serpenti- 

 ni, nitide virides, foliati, ad c. 38 cm. longi, internodiis c. 2.1 — 

 1.4 cm. longis, ad 0.125 cm. diam. Folia patentia, tereti subulata, 

 acuta, carnosa, viridia, apicem caulium versus sensim decrescentia, 

 c. 5.8 — 0.7 cm. longa, 0.2 — 0.07 cm. diam., vagina tubulosa, 

 viridi, internodium aequante. Inflorescentiae pseudoterminales, 

 1— 2florae, squamis siccis basi cinctae. Flores c. 1 cm lati, 

 1.3 cm. longi, albi, mento dorso leviter purpureosuffusi. Sepalum 

 •dorsale erectum, semiellipticum, obtusum, convexum, apice con- 

 cavum, c. 0.5 cm. longum, 4 cm. latum. Sepala lateralia lacinia 

 lata obliqua ad pedem gynostemii decurrentia, marginibus anticis 

 basi et cum labello breviter connata, mentum magnum cum 

 ovario angulum acutum faciens conicum valde incurvum apice 

 contractum et calcariforme obtusum dorso convexum et canaliculis 

 longitudinalibus 3 plus minusve convexo-4costâtum c. 0.9 cm. 

 longum formantia, oblique late triangula, apice rectangule obtusa, 

 obtuse subapiculata, basi rotundata, margine recurvula, c. 0.55 cm. 

 longa, basi absque parte connata 975 cm. lata. Petala sepalo 

 dorsali approximata, oblique ovata, breviter acuta, convexa, c. 

 0.43 cm. longa, 0.27 cm. lata. Labellum basi pedi gynostemii 

 in formam calcaris a dorso compressi breviter adnatum, erectum, 

 parallelum piedi gynostemii curvatum, concavum, apice tantum 

 brevissime 3 lobum, ochroleucum, 3 costatura, costis rectis paral- 

 lelis approximatis infra apicem labelli in maculam verrucosam 

 et conicotridentatam aurantiacam terminantibus, costis exterioribus 



