ORCHIDACEM 119 



Epiphyte in large clumps on mossy trees, alt. 5400 ft., trail to 

 Mt. Apo, Distr. Davao, Mindanao, April 19, 1904, E. B. Cope- 

 land (no. 1019). 



Endemic. 



41. D. LONGILABRE Ames supra, p. 12, t. 24. — Acoridium 

 longilabre Ames Proc. Biol. Soc. Wash. 19: 152 (1906). 



Pseudohulbs 13-33 mm. long, oblong-fusiform, clothed by 

 nigropunctate sheaths. Leaves linear-oblanceolate, obtuse, mucro- 

 nate, about 26 cm. long, 15-18 mm. wide, prominently 3-nerved, 

 the lateral nerves giving the leaf the appearance of being mar- 

 ginate-winged. Lamina decurrent on the petiole, which is 10 cm. 

 long. Peduncle below raceme shorter than the leaves and petioles, 

 slender, flexuose, 20-30 cm. long. Flowers reddish brown when 

 dry, in dense, spicate, cylindrical racemes. Racemes 7-8 cm. long. 

 Bracts 4-5 mm. long, subacute, exceeding the ovary. Divisions 

 of the perianth about equally long, obtuse or subacute, linear- 

 oblong. Labellum much broader than the sepals and petals, mar- 

 gin entire, 5-8 mm. long, 2 mm. wide ; at base, on the lateral 

 nerves two lamellae, 1 mm. long. Apical wing of column quad- 

 rate, the summit irregularly and minutely crenulate, lateral wings 

 from above the middle of the column. 



Solitary or clustered on mossy trees, alt. 5600 ft., Mt. Apo, 

 Mindanao, April 19, 1904, E. B. Copeland (no. 1025). 

 Endemic. 



42. D. ARACHNITES Reichb. f. Gard. Chron. n. s. 17: 256 

 (1882); l'Orchidophile 1: 266 (1882); J. J. Smith Rec. Trav. 

 Bot. Neerl. 1: 65 (1904). — Platyclinis arachnites Rolfe Kew 

 Hand-list 189 (1896). — Acoridium arachnites Rolfe Orch. Rev. 

 12: 219 (1904). 



" Pseudobulbis aggregatis cylindratis demum hinc impressis ; 

 caule supra basin monophyllo ; folio brevi petiolato cuneato 

 oblongo acuto undulato ; pedunculo petalisque longis in apicem 



