86 Bulletin Jard. Bot. Buitenzorq, Série III, Vol V. LiVR. i 



c. 0.8 cm. longum, 0.47 cm. latiim. Sepala lateralia lacinia magna late 

 oblique triangula concava ad pedem gynostemii deciirreiitia, mentum magnum 

 ovario parallelum in ' /:j parte supra basin obtusangule incurvulum conicum 

 apice brevissime calcariforme ceterum antice apertum obtusum c. 1.2 cm. 

 longum formaiitia, oblique erecta, divergentia, oblique triangula, acutiuscula, 

 5( — 7)nervia, c. 0.8 cm., usque menti apicem c. 1.9 cm. longa, basi 

 1.43 cm. metientia. Petala oblique elliptica, acuta, basi brevissime contracta, 

 superne erosula, convexa, Snervia, c, 0.83 cm. longa, 0.4 cm. lata. Labellum 

 pedi gynostemii parallelum erectum, recurvulum,gynostemium longe superans, 

 concavum, lobis lateralibus obsoletis subsimplex, cuneato-quinquangulare, 

 basi pedi gynostemii brevissime adnatum, supra lobos latérales rotundato- 

 obtusos obsolète constrictum, lobo intermedio subsemiorbiculari late 

 rotundatum, parte cuneata excepta eroso-denticulatum, costula transversa 

 supra basin, fascia longitudinali (ipnvexa, nervis venisque in lobo medio 

 plus minusve dense verruculosis, 5nervium, nervis exterioribus bene ramo- 

 sis, explanatum totum c. l.Q cm., usque costulam transversam 0.27 cm. 

 longum, ad lobos latérales 0.Q25 cm., ad lobum médium 0.Q75 cm. latum., 

 Gynostemium brève, crassum, dorso convexum, ad basin filamenti gibbosum, 

 in utraque stigmatis parte obtusangule dilatatum, c. 0.27 cm. longum, 0.37 cm. 

 latum, filamento longe subulato, apice incurvo, auriculis anthera paulo bre- 

 vioribus, parallelis, latis, saepe apice dente sursum curvo donatis. Anthera 

 cucullata, antice visa plana quinquangularis, apice producta, late truncata 

 papillosaque, basi obtusa retusaque, a latere visa triangula, 0.22 cm. Jata. 

 Pollinia 4, in corpuscula 2 oblique obovata supra convexa subtus subplana 

 unita, basi acuta, apice obtusa, a latere visa oblique obovato-pyriformia, 

 interiora angustiora et linearia, c. 0.16 cm. longa. Stigma ovale, apice 

 truncatum. Pes gynostemii cum ovario angulum acutum faciens, in '/a 

 parte supra Basin et ad apicem incurvulus, linearis, apice angustatus, 

 canaliculatus, c. 1.15 cm. longus; pedicellus, c. 0.8 cm. longus. 



Sumatra: West coast, Pariaman, Kajoe Tanam. (W. Groeneveldt, 

 cuit, sub nrs. 1816, 1817). Solok, Danau Dibaroeh. (A, V. Theunissen, 

 cuit, in Hort. E. JACOBSON sub nrs. 1905, 1925). 



In the form of the lip this much resembles D. fiilminicaule J. J, S, 

 from the same area, but in that species the lip is bilobed at the apex 

 and the traiisverse bar at the base is missing. For the rest the two plants 

 are very différent. 



„Stems greenish yellovv or yellowish brown. Pedicel and ovary light 

 green or greenish yellow, the latter more or less dotted with purple. 

 Sepala and petals transparently light yellovv, the former outside more or 

 less tinged or dotted with light purple, the petals on the back only with a 

 similar linc. Lip transparently light yellow, inside with an ochraceous or orange 

 longitudinal band. Column light yellow. Smell of honey". (E jACOBSON). 



Description from materials preserved in alcohol. 



