ORCHIDACEiE 

 inconspicuous flowers appear, usually one at a time. Mr. Wenzel 

 describes the flowers as white, purple, and yellow. From dried 

 material the sepals and petals appear to have been white, the 

 labellum purplish with a yellow tip. 



I have seen specimens without flowers, collected in Mindoro, 

 which may be conspecific with jD. Wenzelii. From Mindanao I 

 have material, also without flowers, which represents a species 

 closely related toZ). Wenzelii, but stouter in all its parts and much 

 branched. In the Bureau of Science Herbarium at Manila there 

 is a single specimen (H. N. Whitford 806) from the Province of 

 Tayabas, Luzon, that appears to be conspecific with D. Wenzelii. 

 There are no flowers with this specimen, which in general habit 

 resembles an undescribed Dendrobium from Bangarmassing, 

 Borneo (J. Motley 722), preserved in the Kew Herbarium. 

 Leyte, C. A. Wenzel 0139, March 20, 1913. 



83. Dendrobium zamboangense sp. nov. Radices fibrata?, glabra?. 



Caules graciles, ad basim attenuati, 1-2 mm. in crassitudine, ad 



apicem circiter 3 mm. in diametro, 20-31 cm. longi, foliosi, inter- 



nodiis 1 cm. longis. Folia coriacea, 3.5-3 cm. longa, usque ad 8 



mm. lata ad basim, usque ad apicem leviter attenuata, inaequali- 



ter bilobata, obtusa, vaginis caulem obtegentibus, in sicco valde 



rugosis. Flores laxe racemosi, purpurei, membranacei,± 6. Pedun- 



culus ± 5 mm. longus, a nodis caulis post abjectionem foliorum 



ortus, purpureus. Pedicellus ovariumque gracilis, circiter 1 cm. 



longus. Bractese florales purpurea?, acuta?, 2 mm. longa?. Sepala 



lateralia antice oblonga, acuta, 6 mm. longa, 3 mm. lata, postice 



mentum ter vel quater longius, longe attenuatum, fere omnino 



clausam formantia; mentum calcariforme usque ad 1.7 cm. 



longum leviter ad apicem dilatatum, circiter 1 mm. in diametro, 



obtusum, quam pedicellus multo longius leviter curvatus. Sepalum 



dorsale elliptico-lanceolatum, acutum, 6 mm. longum, 3.5 mm. 



[ 145 ] 



