Smith : Orchidaceae novae Malayenses X. 35 



nervis 7 majoribiis pliiribiisqiie tenuibus sicco supra subtusque promiiien- 

 tibus, papycaceiim, c. 15-7.5 cm. loiigiim, 2.3 — 0.85 cm. latiim ; petiolus 

 tennis, canaliculatus, c. 2 — 1.3 cm. lonf^ns. Inflorescentiae ex innovationibus, 

 multifiorae, pedunculo filiformi, c. 5 — 2,5 cm. longo, racliide leviter flexu- 

 osa, compresso-quadrangiila, lateribus angustis sulcata, parce vel parcis- 

 sime muriculato-pnbernia, c. 8.5—5 cm. ionga, internodiis c. 0.3 cm. longis. 

 Bracteae pedicellum ampiectentes, iate subseptemangulato-ovatae, irregula- 

 riter margiiiatae, epunctatae, c. 0.37 cm. iongae, 0.34 cm. latae. Flores ad 

 c. 26, in racliidis lateribus latis siti, patentes, bene 0.7 cm. lati. Sepalum dorsale 

 leviter sigmoideum, apice recurvuium, subelliptico-oblongum, breviter trian- 

 gulo-acutum, 3iiervium, c. 0.5 cm. longum, 0.18 cm. latum. Sepala lateralia 

 oblique subelliptico-oblonga, acuta, medio secundum costam mediam cana- 

 liculata cum lateribus convexis, 3nervia, costa média dorso prominente, 

 c. 0.5 cm. longa, 0.18 cm. lata. Petala e basi contracta angulato-elliptico- 

 oblonga, acuta, erosula, canaliculata cum lateribus convexis, 3nervia, c. 0.44 

 cm. longa, 0.2 cm. lata. Labellum parallelum gynostemio porrectum, vix 

 31obum, 3nervium, costis 2 longitudinalibus parallelis brevibus basi supra 

 basin labelli costula transversa medio retusa connexis in basi lobi intermedii 

 evanescentibus, c. 0.4 cm. longum; lobi latérales abbreviati, antice in dentem 

 minimum triangulum producti, suberosuli, leviter convexi, hypochylium 

 transverse quadrangulùm basi obtusangulum subtus sulcis 2 longitudinalibus 

 convexo-tricostatum c. 0,12 cm. longum 0.15 cm. latum formantes; lobus 

 intermedius porrectus, hypochylio multo latior, Iate ovatus, vix acuminatus, 

 acutus ad obtusus, subrepandulus, c. 0.275 cm. longus, 0.33 cm. latus. 

 Gynostemium parvum, subrectum, c. 0.14 cm. longum, alis lateralibus e 

 medio gynostemii, lineari-subulatis, sigmoideis, alam apicalem gynostemium 

 continuam concavam transverse quadrangulam 3 — 2dentatam aequantibus vel 

 paululum superantibus, pede 0. Anthera cucuUata, Iate ovato-triangula, apice 

 recurva, connectivo valde gibboso, basi 21obula, c. 0.05 cm. lata. Rostellum 

 incurvum, canaliculatum, triangulum, acutum. Stigma conspicuum, suborbi- 

 culare, margine elevatum. Ovarium ôsulcatum, cum pedicello aequilongo 

 vix tenuiore c. 0.2 cm. longum. 



'to' 



Sumatra: West coast, Korintji Peak, 2200—2400 m., epiphytical in 

 forest. (H. A. B. BuNNEMEljER nrs. 1025, 10117 and 10445, May 1920). 



In habit this resembles D.aciiminatiini ].].'$>. but the inflorescences are 

 much shorter and laxer with fewer and larger flowers, the sepals and 

 petals broader, the hypochyl much narrower than the midlobe with far 

 less conspicuous ridges and the midlobe very shortly acuminate. 



The flowers are said to be light green with the lip a litthe darker green 

 in the centre. The flowers preserved in alcohol hâve the hypochyl bordered 

 brown. 



Description from herbarium and flowers preserved in alcohol. 



