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ovario angulum acutiim vel subrcctuin faciens coiiicuiii obtusanj^ule iiicurvum 

 late obtusum retusiini dorso convexiim et oblique 2canaliciilatiini c. 0.77 

 cm. longiim tormantia, apice recurviila, late obhque triangula. inargine 

 postico valde curvata, apice rectangiila, concava, 5nervia, c. 0.8 cm. longa, 

 basi fere 1.1 cm. lata, margiiie aiitico c. 0.85 cm. iiietientia. Petala parallela, 

 porrecta, margiuibiis proximis leviter tegeiitia, apice recurviila, oblique 

 lanceolata, obsolète sigmoidea, obtusiuscula vel acutiuscula, Snervia, c. 0.8 

 cm, longa, 0.22 cm. lata. Labellum oblique erectum, apice abrupte recurvum, 

 subtrilobum. basi uiigue brevi cuiieato apici pedis gyiiostemii saccato- 

 adnatum, 3iiervium, supenie costis 3 loiigitudinalibus approximatis subrugu- 

 losis, cxplanatum late cuneatum, usque ad apicem lobi intermedii c. 0.725 

 cm. loiigum, beue 1.1 cm. latum; lobi latérales magui, erecti, supra gynos- 

 temium incurvi, concavi, oblique triaiiguli, obfusi, margiue antico sigmoidei, 

 inargine postico rotundati; lobus intermedius minimus, in sinu inter lobos 

 latérales, obtusus, c. 0.025 cm. longus. Gynostemium brevissimum, latum, 

 stelidiis 2 conspicuis deorsum spectantibus parallelis triangulis obtusis in 

 margine, clinandrio excavato, filamento subulato, auriculis subrotundatis. 

 Anthera eucullata, antice plana et ambitu transveise subovalis, apice trun- 

 cata et minute papillosa, c. 0.16 cm. lata. StigFiia transverse quadrangulum. 

 Pcs gynostemii cum ovario angulum acutum faciens, in '/a supra basin et 

 infra apicem obtusangule incurvus, latus, oblongus, apicem versus dilatatus, 

 valde concavus, tennis, apicem versus intus Scostatus, Costa intermedia 

 infra apicem glandulam conspicuam gerente, c. 0.73 cm. longus. Ovarium 

 ôsulcatum, cum pedicello c. 0.5 cm. longum. 



Sumatra: Padangsche Bovenlanden, Goenoeng Singgalang, 1700 m- 

 ( E. Jacobson, cuit, sub n. 1216). 



The nearest ally of this species is evidently D. cuncilabriim J. J. S. 

 from Celebes, but tlie leaves are channelled, thc flowers much smaller, 

 the side lobes of the lip longer and entire. The most striking characteristic 

 is, however, formed by the triangular stelidia of the column, which recall 

 to mind the Papuan D. Vannoufiuysii ].]. S Jrom ihe Calyptrochilus-sect'ion. 



Mr. E. Jacobson describes the colour of the flowers as follows. „Pedi- 



cel greenish white, ovary light green, sepals yellowish faintly rose purple 



,at the base, the dorsal one with 3, the latéral ones with 4 faint rose purple 



veins, petals yellowish. lip yellowish, the side lobes veined rose purple, 



the minute midlobe dark yellow and the ridges light yellow." 



Description from materials preserved in alcohol. 



^ Dendrobium (sect. Sarcopodium) d e m p o e n s e J. J. S, n. sp. 

 Rhizoma validum. repens. radicans, teres, sicco c. 0.5 cm. diam., 

 vaginis brevibus tubulosis imbricantibus superne accrescentibus tectum. 

 Pseudobulbi c. 3,5 — 4.5 cm, distantes, cum rhizomate angulum acutum 

 facientes, sicco oblongo-ovoidei, apicem versus attenuati, angulati, nitide 

 ochracei, ç. 5—5,5 cm. longi, 2foIii. Folia e basi breviter petiolato-contracta 



