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et leviter rotundato-truncatum. Ovarium pediccllatnm clavatum, leviter 

 sigmoideum, ôsulcatum, dilutc viride, c 0.2 — 0.225 cm. longum. 



Bornéo: Upper Kapoeas, Soengei Talaj. (C. O. Gravknhorst, 1916, 

 liv. pi. cuit, in Hoit. Bog.). 



A distinct species with iinear bliinl thickish leaves, and a rather thin 

 and long lip denticulate at the widencd base and resembling that of 

 D. simile Bl. 



Description from a living plant, which 1 am indebted for to Mr. C. O. 

 Gravenhorst, who collected it dnring his journey in Western Bornéo, 



D e n d r o c h i 1 u m (sect. Platyclinis) p o 1 1 u c i f e r u m J. J. S. n. sp. 



Rhizonia brève, repens. ramosnin, radicibiis crassiuscnlis. Pseudobulbi 

 approximati, erecti, elongati, obtuse subtrigoni, facie 1 latissima convexa, 

 faciebus 2 angustioribus concavis, apiceni versus paulo attenuati, opace 

 virides, c. 7,5—8 cm. longi, basi c. 1.1 cm. diam., Ifolii, initio vaginis 

 conduplicatis imbricantibiis superioribus accrescentibiis triangulis aciitis 

 dilute viridibus tecti, Folium erectum, petiolatum, lanceolatum, subaculum 

 cum apiculo pungente, basi acutum, costa média supra sulcata subtus 

 prominente, nervis 2 satis conspicuis non prominentibus supra pallidioribus 

 utrinque, nervis exterioribus marginem approximatis, firmiter coriaceum, 

 rigidiusculum sed tenuiusculum, opaco-viride, c, 12— 15cm. longum, 1.85 — 2.1 

 cm. latum; petiolus conduplicato-canaliculatus, c. 1 — 1.5 cm. iongus. inflore- 

 scentia muitiflora, pedunculo compresso, pallide viridi, c. 3.5— 6 cm. longo, 

 vaginula bracteiformi donato, rachide quadrangula, pallide viridi, pallide 

 fuscescenti-suffusa, c. 14.5 cm. longa, internodiis c. 0.25—0.3 cm. longis. 

 Bracteae patentissimae, marginibus valde involutae, oblongo-subelliplicae, 

 acuminatae. acutae, basi marginibus breviter in rachidem decurrentes, usque 

 ad 1.2 cm, longae, inferiores flores superantes, superiores aequantes. Flores 

 alternatim bifarii, patentissimi, incurvi, suaveolentes, sepalis petalisque 

 incurvis, pallide flavo-viridibus, apicem versus flavescentibus, interdum 

 fuscescenti-suffusis. Sepalum dorsale oblongo-ovatum, satis acutum, concavum, 

 3nervium, c. 0.52 cm. longum, 0.23 cm. latum. Sepala lateralia oblique 

 oblongo-ovata, acuta, in utraque parte canaliculae longitudinalis convexa, 

 dorso carinata, fere 0.5 cm. longa, 0.23 cm. lata. Petala suboblique oblongo- 

 ovata, brevissime obtuse acuminata, concava, c. 0.42 cm. longa, 0.2 cm. 

 lata. Labellum supra basin et infra apicem recurvum, 31obum, 3costatum, 

 costis supra basin transverse conjunctis, usque ad médium lobi intermedii 

 productis, 2 exterioribus inter lobos latérales altissimis, deinde sensim 

 decrescentibus, costa intermedia quam exteriores humiliore, sulco longitudi- 

 nal! duplicata, subtus longitudinaliter sulcatum, basi dilute cinnamomeum, 

 hypochylio magnam partem pallide viride, lobis fuscis cum stria longitudi- 

 nali pallide viridi usque in medio lobi intermedii, totum explanatum c. 

 0.36 cm., usque ad apicem loborum lateralium 0.15 cm. longum, hypochylio 

 suborbiculari, integro, c. 0.15 cm., ad apicem loborum lateralium 0.2 cm. 

 lato; lobi latérales patentes, divergentes, oblique trianguli, apice subsubulati, 



