December 12, 1912] Orchid. Novae et Criticae Ins. Philippinarum 1585 



Rhizome elongated, copiously rooted, bearing 1.5 — 2 cm. 

 apart, long-petioled, ligulate leaves. Petioles 1 — 1.3 dm. long. 

 Lamina 2 — 2.2 dm. long, 3 cm. wide. Scape + 3 dm. long, closely 

 sheathed at base by about 4 ancipitous bracts. Raceme loosely 

 many flowered, about 2.5 dm. long. Bracts subtending the 

 flowers ± 5 mm. long. Lateral sepals 4.5 mm. long, 3 mm. wide 

 at the base. Upper sepal about equal to the laterals but nar- 

 rower. Petals 2 mm. long. Labellum 3 mm. long. 



B. longipetiolatum is closely related to B. dasypetalum Rolfe 

 and to B. gibbosum Lindl. From the former it is readily dis- 

 tinguishable by its smaller flowers and very characteristic foliage. 



Mindanao: District of Davao, Todaya (Mt. Apo), June, 

 1909, A. D. E. Elmer, 10883. 



(irowing in clumps on large oak trees in humid woods at 

 4000 feet above sea level, north of the Baruring river. Root- 

 stock branched; petioles subterete, green, ascending; leaf blades 

 thickly coriaceous, only slightly recurved and ronduplicate; 

 inflorescence ascending. 



Bulbophyllum mindanaense sp. nov. 



Rhizoma repens. Pseudobulbi 0. Folium crassum, coria- 

 ceum, elliptico-lanceolatum, cum petiolo, 39 — 49 cm. longum, 

 5 — 8.7 cm. latum, costa media supra sulcata, subtus obtuse cari- 

 nata. Petiolus elongatus, sulcatus 15 — 20 cm. longus, rigidus. 

 Scapus elongatus, gracilis, plus minus 7 dm. longus, prope basim 

 vaginatus. Racemus gracilis elongatus, multiflorus. Flores crassi 

 minuti. Bracteae inflorescentiae plus minus 4 mm. longae. 

 lineares, acutae. Sepala lateralia ovato-oblonga crassa, obtusa. 

 2.5 mm. longa, 2 mm. lata, ad apicem cucullata et inflata. Sepa- 

 lum dorsale, oblongi-lanceolatum, 3 mm. longum. Petala 1.5 

 mm. longa, 0.5 mm. lata, oblonga, l-nervia, obtusa, apiculata, 

 prope basim attenuata. Labellum minutum, oblongum, crassum 

 valde arcuatum, obtusum 1 mm. longum. Columna minuta, 

 bialata, alls lanceolatis, 1 mm. longa. 



B. mindanaense differs from the other Philippine species of 

 § Racemosae in its large, long-petioled leaves, elongated scape 

 and minute flowers. According to Mr. Elmer's field notes this 

 species grows in clumps on the Hmbs of lofty trees in humid forests 



