ORCHIDACE^E 



specimen probably from a plant collected by Camelli and re- 

 ferred to in Ray's Historia Plantarum, vol. 3 : App. 34, no. 21. 

 Luzon, Polillo, Sulu Archipelago. 



28. Dendrobium Elmeri Ames in Elmer's Leaflets of Phil. 

 Bot. 5 : 1573. In habit practically inseparable from D. hypodon 

 Schltr., a species from Celebes, but in the structure of the label- 

 lum clearly distinct. My specimens of the co-types of D. hypodon 

 Schltr. are flowerless, but Schlechter's description of the label- 

 lum of the type does not apply to the labellum of JD. Elmeri, 

 which is most conspicuously toothed underneath near the apex, 

 and which is verruculose on the upper surface. In D. Elmeri 

 the flowers are lateral. In D. hypodon they are terminal. 



Luzon. 



29. Dendrobium epidendropsis Kranzl. in Orchis 2 : 79, t. 12. 

 Luzon. 



30. Dendrobium Escritorii sp.nov. Caulis a basi medium usque 

 foliatus, supra nudus. Caules elongati, ancipites, usque ad 3 dm. 

 alti, supra graciles. Folia disticha, ad 1 cm. inter se distantia, va- 

 ginantia, pars vaginans circiter 1 cm. longa,valde complanata, to- 

 tum folium ensiforme, a latere visum falcato-lanceolatum, circiter 

 2.5 cm. longum, vix 5 mm. altum, acutum, folia suprema minora 

 deinde subito desinentia, pars aphylla caulis usque ad 21 cm. 

 longa, pluri-articulata. Flores flavidi (succedanei?), 12 mm. longi. 

 Sepala lateralia oblique lanceolata, acuta, 7 mm. longa, vix 4 mm. 

 lata, mentum obtusum, 5 mm. longum formantia. Sepalum dor- 

 sale lanceolatum, acutum. Petala lineari-spathulata, acuta, 6 mm. 

 longa, circiter 1 mm. lata. Labellum a basi cuneatum, deinde tri- 

 lobatum, lobis lacerato-dentatis ; lobi laterales vix distincti, ali- 

 quando obscuri, lamina labelli flabellata margine lacerata. Ultra 

 medium disci callus cristatus, linear dua? elevatulee per discum, 



[ 123] 



