A new Dendrobium, D. gracilipes, from the 

 Rhio Archipelago. 



By I. H. Buekill. 



Figure of Dendrobium cjracilipes reduced to \ : the'flower in section 

 and in face view natural size. 



Dendrobium (Sarcopodium) gracilipes. Rhizoma longum, 

 sen pennae eorvinae crassum. Pseudobulbi juniores bracteis scari- 

 osis vaginati, deinde nudi, 4 cm. disparsi, oblique ovoidei, circa 

 3 cm. longi, paliti, viridissimi, nitentes, diametro ad 14 mm., bifo- 

 liati. Folia, glabra, sessilia, lineari-elliptica, ad 16 cm. longa, ad 

 2.5 cm. lata, polita nitentia, saturate viridia, pagina inferiori 

 pallidiora, apice bidentata dentibus rotundatis. Pedicellus glaber, 

 capillaris inter folia natus, biflorus, viridis. Ovarium pallidum, 

 longum. Sepala eburnea, lanceolata; dorsale cum ovario angulum 

 rectum f aciens ; lateralia ad peclem gynostemii decurrenta mentum 

 rectangulare 5 mm. longum formantia, leviter curvata; omnia 15 

 mm. longa, 5 mm. lata, acuta. Petala linearia, sepalis aequilonga, 

 1.5 mm. lata, eburnea, leviter curvata, acuta. Labellum trilobatum; 

 lobi laterales velut parietes antri erecti, margine superiori admodum 

 recti, intus purpureo-puncticulati, apice purpurei, etiamque in mar- 

 ginibus superioribus purpurei, in margine inferiori saturate crocei; 

 lobus medius subdeltoideus ex basi lata apice subacuminatus, mar- 

 ginibus et apice eburneus, versus fauces croceus, tri-carinatus. 

 Columna ex ovario prorsa, eburnea, equilateralis, ad basi infra rufo- 

 brunnea. 



• Jour. Straits Branch R. A. Soc, No. 79. 



