— 95 — 



aciitum, concavum, 9iiervium, utrinque sed praesertim dorso furfuraceo- 

 punctatum, c. 1.85 cm. longum, 0.5 cm latum. Sepala lateralia divergentia, 

 oblique triangulo-lanceolata, apicem versus sensim angustata, coiiduplicata, 

 dorso cariiiata, acuta, c. Qnervia, furfuraceo-punctata, c. 2.1 cm. longa, 

 0.64 cm. lata. Petala minima, reflexa, convexa, oblique oblonga, obtusa, 

 breviter obtuse apiculata, basi oblique dilatata, 3ncrvia, c 0.3 cm. longa, 

 medio 0.14 cm., basi beiie 0.2 cm. lata. Labellum mobile, recurvulum, 

 ambitu ovato-lanceolatum, apicem versus sensim angustatum, basilateribus 

 erectis canaliculatum, niargine basi integerrimum supra basin recurvum 

 crenulatumque, canalicula verrucosa supra basin carinis 2 brevibus altis 

 crenatis interne lacinulatis extus verrucosis superne approximatis in ^/^ 

 partibus supra basin terminantibus basin versus evanescentibus limitata, 

 magnam partem cenvexum, subtus longitudinaliter sulcatum, carnosum, 

 totum c. 1.3 cm. longum, 0,45 cm. latum. Gynostemium satis longum, plus 

 minusve curvulum, a dorso compressum, oblongum, absque anthera c. 0.5 

 cm. longum. clinandrio transverso, filamento filiformi, auriculis triangulis, 

 margine inferiore lobulo incurvo donatis. Anthera cucullata, semiovali- 

 trapeziformis, apice rotundata, acutangule emarginata et erosula, basi con- 

 cavo-truncata, thecis oblique oblongis convexis sulco limitatis, connectivo 

 auguste oblongo apicem versus angustato convexo ante sinum terminante, 

 c. 0.2. cm. lata. Pollinia 4, lateraliter compressa, oblique obovata, margine 

 inferiore recta, 2 exteriora altiora, crassiora, apice subcontracta, c. 0.16 cm. 

 longa. Stigma magnum, late semilunatum. Pes gynostemii cum ovario 

 angulum acutum faciens, incurvulus, lineari-oblongus, apice liber, truncatus, 

 intus convexus, c. 0.53 cm. longus. Ovarium teres, ôsulcatum, dense fuifu- 

 raceum, c. 0.4 cm. longum; pedicellus teres, c. 0.9 cm. longus. 



Sumatra: Natal, Sawah Baroeh. (A. V. Theunissen, cuit, in Hort E. 

 Jacobson, Fort de Kock, sub nrs. 1470 and 1471). benkoelen, Boekit 

 Barisan, Rimbo Pengadang, 1000 m. (Exp. E. Jacobson, Ajoeb nrs. 143 

 and 205, June 1916; „flowers yellow with red dots"). 



In the form of the labellum this resembles such species as B. serra 

 ScHLTR. and B. acuminatum Schltr. from New-Guinea. 



„Pseudobulbs yellowish green. Leaf yellowish green or green. Pe- 

 duncle olive-brown. Sepals brownish yellow, densily spotted purple on 

 the back, the dorsal one sparingly spotted inside, the latéral ones with a 

 purplish hue and finely spotted inside, at the base with larger dots; lip 

 ochraceous, densily spotted purple outside, less densily inside; column 

 purple; anther yellow spotted purple, the apical edge blackish purple." 

 (E. Jacobson). 



Description from spécimens preserved in alcohol. 



^ Bulbophyllum (sect. Osyricera) G r o e n e v e 1 d t i i J. J. S n. sp. 



Rhizoma abbreviatum, ramosum. Pseudobulbi aggregati, parvi, oblique 



depresse globosi, nitidi, dilute virides, c 0.5—0.7 cm. alti, 0.9-12 cm. 



