90 Bulletin Jarô. Bot. Buitenzorg, Série m, Vol. V. Livr. ï. 



In the form of the fiowers this recalls to mind D. Hasseltii Lndl. and 

 D. glomeratum ROLFE as figured in Gard. Chr. 1894, I, 653. The lip is rather 

 narrow in the section and approaches Pedilomini very closely. hideed, the 

 sections Pediloniim, Calyptrocliilus, Calcarifera, Platycaiilon and others 

 are not équivalent to such ones as Desmotrichuni, Diplocaulobiuin, Grasti- 

 diiim etc., but should be regarded as subsections. 



„Stems dépendent, 1 m. long. Flowers violet, as it were covered v^ith 

 small crystals, h'p red". (BEGUIN). 



Description from dried spécimens. 



° Dcndrobium (sect. Eudendrobium) batakensc J.J.S. n. sp. 



Gaules tenues, hic illic radicem tenuem emittentes, pars adest ad 37 cm. 

 longa, internodiis 3 — 4.5 cm. longis. Folia lineari-lanceolata, apicem versus 

 angustata, oblique acuta, apice minutissime erosulo-crenulata, margine recur- 

 vula, Costa média supra sulcata subtus prominente, papyracea, ad c. 5 — 5.5 

 cm. longa. 0.8 cm. lata; vaginae tubulosae, internodiis aequilongae vel 

 paulo breviores, apice truncatae. Inflorescentiae in caulibus foliatis inter et 

 infra folia, vaginam dorso perforantes, patentissimae, brevissimae, 1 — 2florae, 

 pedunculo vaginulato cum rachide flexuosa c. 0.5 — 0.6 cm. longo. Bracteae 

 adpressae, triangulae, breviter acute acuminatae. Flores c. 1.75 cm. lati, 

 2 cm. longi. Sepalum dorsale ovarium continuum, apice recurvulum, 

 oblongo-triangulum, acutum, breviter apiculatum, 5nervium, c. 1.2 cm. 

 longum, 0.46 cm. latum. Sepala lateralia cum pede gynostemii mentum 

 auguste conicum cum ovario angulum acutum faciens dorso dimidio infe- 

 riore rectum dimidio superiore leviter convexum obtusum c. 0.75 cm. longum 

 formantia, margine antico basi breviter connata, divergentia, oblique auguste 

 triangula, acuta, basi antice oblique dilatata, 5nervia, c. 1.2 cm. longa, basi 

 0.85 cm. lata. Fetala oblique rhombeo-lanceolata, acuta, 3nervia, c. 1.2 cm. 

 longa, 0.4 cm. lata. Labellum apici calcariformi pedis gynostemii insertum, pedi 



- gynostemii parallelum. recurvum, gynostemium longe superans, concavum, 

 subtus convexum cum sulco longitudinali, trilobum, intus fascia mediana dense 

 pubescens, lobis margine lato excepto muriculato-pilosum praesertim in 

 nervis, 5nervium, explanatum ex ungue brevi ambitu rhombeum, c. 1.6 cm. 

 longum, ad lobos latérales 0.95 cm. latum ; lobi latérales erecti, gynostemium 

 superantes, concavi, oblique quadranguli, obtusissimi, superne acute denti- 

 culati; lobus intermedius ovato-triangulus, breviter acute acuminatus, 

 denticulatus, concavus, c. 0.5 cm. longus et latus. Gynostemium brève, 

 crassum, c. 0.32 cm. longum, clinandrio transverso, excavato, filamento 

 subulato, auriculis breviore, auriculis triangulis, falcato-incurvis, obtusis, 

 margine postico dente instructis. Anthera cucullata, antice plana et subor- 

 bicularis, apice breviter obtusangule triangulo-producta et minute lacinulato- 

 denticulata, c. 0.15 cm. lata. Pollinia 4, angusta, supra convexa, subtus 

 Voncava, a latere visa falcatula, interiora quam exteriora paulo longiora, 

 c. 0.13 cm. longa. Stigma longitudinale, oblongum, margine inferiore rotun- 



