ORCHIDACE.E 



general habit the plant resembles Coelogyne longifolia Lindl. 



Wenzel describes the flowers as red in all specimens except the 



one collected on August 30, 1917. In this specimen the sepals 



and petals are orange, while the labellum is orange and white. 



Mindanao, Surigao Province, C.A. Wenzel 01206 (Type), September 22, 

 1917. Epiphyte in forest. 150 meters altitude. Flowers red; Wenzel 0117 5^ 

 August 23, 1917; Wenzel 01179, August 20, 1917; Wenzel 01182, Au- 

 gust 30, 1917. 



DENDROCHILUM Bl 



Dendrochilum (§Acoridium) binuangense Ames sp. nov. 

 Radices fibratae. Pseudobulbi ±1 cm. longi, semifusiformes, in 

 sicco plurisulcati, monophylli, juniores vaginis inclusi. Folium 

 4-8 cm. longum, 6-11 mm. latum, anguste oblongo-ellipticum, 

 utrinque attenuatum, obtusum, coriaceum, in sicco prominenter 

 trinervium, nervis lateralibus submarginatis. Petiolus abbrevia- 

 tus. Pedunculus cum racemo ± 1 dm. longus, folio multo longior, 

 infra inflorescentiam bracteis infundibuliformibus ornatus. Ra- 

 cemus ±8 cm. longus, gracilis, elongatus, arcuatus, multiflorus. 

 Flores distichi, albidi, circa 1 mm. distantes. Bracteae inflores- 

 centiae circa 4 mm. longae, glumaceae, semiovatae, acuminatae, 

 valde acutae, ovaria pedicellata superantes. Sepala lateralia 3.75- 

 4 mm. longa, circa 1 mm. lata, oblongo-lanceolata, acuminata, 

 valde acuta, uninervia. Sepalum dorsale circa 4 mm. longum, 

 1 mm. latum, anguste oblongo-lanceolatum, acuminatum, acu- 

 tum, uninervium. Petala 3 mm. longa, anguste oblongo-lan- 

 ceolata, acuta, uninervia. Labellum minutum, trilobatum, lobis 

 lateralibus columnam excedentibus ; lobi laterales vix 1 mm. 

 longi, circa 1 mm. lati ad apicem, subcuneati, truncato-obtusi, 

 lobum medium multo excedentes; lobus medius tridentatus, 

 carnosus, vix .5 mm. longus, dentibus triangularibus subaequali- 

 bus; discus valde concavus, callo minuto lineari ornatus. Calli 



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