ORCHIDACEM 171 



striated, chartaceous bracts which become rufous with age and 

 eventually fall away. Leaves thick, of firm texture, smooth, ellip- 

 tic-oblong, subsessile, 9-12 cm. long, 3-4 cm. wide, about twice 

 longer than the pseudobulbs. Peduncle terminal, wand-like, erect, 

 about 2 mm. thick near the base, sheathed at intervals with dull 

 reddish, 15 mm. long bracts. Inflorescence a loose, simple and 

 graceful raceme, often exceeding 2 dm. in length. Floral bracts 

 spreading, 11-18 mm. long, linear to oblong, obtuse, scarious, 

 slightly more than half as long as the slender pedicel and ovary. 

 Flowers 7—20 or more, 4.5-5.5 cm. across when spread out. Sepals 

 linear-lanceolate, acuminate, acute, up to 3 cm. long, and at base 

 5-6 mm. wide. Petals similar, but rather more oblong and shorter. 

 Labellum deeply 3-lobed, about 18 mm. long ; middle lobe broadly 

 lanceolate, acuminate, 1 cm. long, separated from the triangular- 

 ovate lateral lobes by a narrow isthmus ; disc with 3 raised nerves 

 which converge near the base of the middle lobe. Mentum obtuse, 

 5 mm. lono-. Column 6 mm. lono-. According to field notes the 

 flowers are yellow and white. In dried specimens the lateral lobes 

 of the lip are of a very deep orange or reddish yellow, while the 

 petals and middle lobe of the lip are of a pale or whitish yellow. 



As stated by Mr. R. A. Rolfe in his description, this Dendro- 

 bium is a near ally of the Javan D. cymbidioides described origi- 

 nally by Blume (Bijdr. 332) as Desmotriclium cymbidioides. It 

 was collected for the first time in May, 1904, by Thomas E. Borden 

 and H. N. Whitford, in the vicinity of the Lamao River, Mt. Mari- 

 veles, Province of Bataan, Luzon, in the Philippine Islands, and in 

 April, 1905, it was again found near the same locality by Elmer 

 D. Merrill, who sent a living specimen to North Easton. In gen- 

 eral aspect the plants resemble Dendrobium cymbidioides very 

 closely and might pass as luxuriant forms of that species, if it were 

 not for the very different lip and the acuminate sepals and petals. 

 Aside from its botanical interest Dendrobium acuminatum pro- 

 mises to be a valuable horticultural acquisition, worthy of importa- 

 tion and cultivation, because of its graceful racemes, numerous 

 flowers and compact habit. According to Mr. Merrill the plants 



