38 Bulletin Jard. Bot. Buitenzorg, Série III, Vol. V. Livr. l. 



*^ — 



supra basiii recurvum, laxe undatum, 3 lobum, 3nerviuiTi, lamellis 2 remotis 

 longitiidiiialibus parallelis erectis brevibus altis beiie semiorbicularibus in basin 

 lobi intermedii breviter decurrentibus supra basiii labelli costula transversa 

 humiliore connexis, expansum c. 0.4 cm. longum ; lobi latérales basilares, 

 pateiitissimi, brèves, oblique seiniorbiculares, apice vix dentiformi-prcducti, 

 parce deiiticulati,convexi, iiypochylium transverse oblongo-ovale fere 0.1 cm. 

 longum 0.2 cm. latum formantes; lobus intermedius marginibus lateralibus 

 incurvulis concavus, rhombeo-quinquangularis, acute acuminatus, superne 

 irregulariter marginatus, medio liypocliylio vix angustior, c. 0.3 cm. longus, 

 basi 0.125 cm., medio fere 0.2 cm. latus. Gynostemium minutum, curvulum, 

 dorso obtusangule convexum, supra visum ambitu oblongum, superne leviter 

 dilatatum, c. 0.13 cm. longum, alis lateralibus subnullis, in utraque antherae 

 parte lobulum parvum rotundatum formantibus, ala apicali transverse qua- 

 drangula, apice 2 — 3dentata, concava, pede 0. Antliera parva, cucullata, 

 truncato-ovata, apice recurvula, connectivo valde oblique conico-gibboso, 

 c. 0.05 cm. lata. Rostellum patentissimum, semiorbiculare, apiculatum, subtus 

 convexum. Stigmasubquadratum, margineelevatum.Ovarium obtuse trigonum, 

 ôsulcatum, c. 007 cm. longum; pedicellus fere aequicrassus, bene 0.1 cm. 

 longus. 



Sumatra: West coast, Korintji Peak, 2400-^2750 m. (H. A. B. BuNNE- 

 MEIJER nrs. 9774, 9846 and 9933, April— May 1920). 



1 hâve little doubt that Platyclinis ramosissimiis (a) RiDL. is intended 

 for this plant, only RiDLEY says that the scape is produced v^hen the leaf 

 is quite young and undeveloped, whereas in my plants the leaf in the 

 majority of the flowering sprouts is nearly full-grown. The stigma I find 

 not being larger than in the allied species and the apex of the clinandrium 

 is 2— 3dentate. 



The flowers hâve been described by the coUector as lightgreen (n. 9774), 

 light green with a darker green lip (n. 9933) and light green v^^ith 

 a brownish green blotch on the lip (n. 9846). In the flowers preserved in 

 alcohol the side lobes of the lip hâve brown margins, the midlobe shows 

 2 brown blotches and the transversal ridge Connecting the basai lamellae 

 is also brown. 



Description from herbarium and flowers preserved in alcohol. 



o Dendrochilum (sect. Monochlamys) decipiens J. J. S. n. sp. 



Rhizoma elongatum, ramosum, teres, basi tantum radicans, pars adest 

 50 cm. longa, internodiis ad c. 3.5 cm. longis, vaginis acutis, sicco dense 

 prominule nervosis, epunctatis, opacis, ad c, 4.5 cm. longis. Pseudobulbi 

 ad c. 12.5 distantes, rhizoma continui, cum rhizomate angulum auguste 

 acutum facientes, semiteretes (sicco), facie rhizoma versus spectante applanati. 

 inferne concavi, crassitudine rhizomatis, ad c. 2.9 cm, longi. Folium majus- 

 culum, petiolatum, elliptico-lanceolatum, in c. 1.6—3.5 cm. infra apicem 



