ORCHIDACEtE 



bata, demum retusa, in sicco subcoriacea, nervosa, plus minusve 

 1 cm. inter se distantia, vaginis inserta ; internodia leviter nodosa, 

 demum fibrillis vaginarum dejectarum vestita. Racemi e caulibus 

 aphyllis breves, pauciflori, plus minusve 1.5 cm. longi. Flores 

 membranacei, tenues, albidi, roseotincti. Bracteae inflorescentiae 

 minutae, triangulares, acutae, 1.75 mm. longae. Pedicellus cum 

 ovario usque ad 18 mm. longus, gracilis, glaber. Sepala lateralia 

 5 mm. longa, triangulari-oblonga, subacuta, mentum trilobatum, 

 valde elongatum, 16 mm. longum, 1 mm. in crassitudine, cum 

 labello formantia. Sepalum dorsale elliptico-ovatum, obtusum, 

 5.25 mm. longum, trans medium 2 mm. latum. Petala 5 mm. 

 longa, 2 mm. lata trans medium, elliptico-oblonga, obtusa, tri- 

 nervia, membranacea, in sicco pellucida. Labellum simplex, lam- 

 ina vel pars libera labelli oblanceolata e basi lata, ecallosa, 7 

 mm. longa, 3 mm. lata. Columna brevis, apice utrinque lobulata, 

 lobulo rotundato. 



Dendrobium appendiculoides is related to D. Hasseltii Lindl., 

 but is a more slender and compact species vv^ith much smaller 

 flowers. In habit the slender leafy stems resemble Appendicula 

 lucbanensis Ames. 



The mentum is very slender and about equally thick from base 



to tip, and is closed in front up to the point where the lamina of 



the lip begins to dilate. 



Philippines, Mindanao, Bukidnon Subprovince, Mount Candoon, M. 

 Ramos ^ G. Edano Bur. Sci. 389Ji,0, June 27, 1920. Flowers pink and 

 white. On tree in forest. 5000 feet altitude. 



Dendrobium (§ Desmotrichum) csLXidoon^ns^Amessp. nov. 

 AfF. D. convexo Lindl. Rhizoma longe repens. Caules penduli, 

 ramosissimi, in nodis infimis radicantes, fibrilUs foliorum vetus- 

 tiorum obsiti, articuli ultimi in pseudobulbos clavatos, 2-3 cm. 

 longos, plus minusve 3 mm. crassos incrassati, monophylli. Pseu- 



[94] 



