okchioacj:^ halcoxexsks. 
317 
t 
+ 
Dendrochilum (!i Acoridium) bicallosum Amos Oreliidacoit', fasc. 2 (1007) 
incd. 
Epipliyte in ridge forest at 2^500 ft. alt. on :Mount Ilulcon, flowers brownisli 
rod, Nov. 28, 190G, Merrill (No. 5812). 
Var. minor Ames Orehidaeeae, fuse. 2 (1907) ined. 
On l('d*^e in ridj^e forest at about 1,500 ft. alt. on Mount Halcon, flowers pale 
salmon color, odorless, Nov. 8, 1!>00, ^fcrrill (No. 50(1.3); 
Dendrochilum (§ Acoridium) exile Ame.s Orcliidacea', fuse, 2 (1007) iitrd. 
Epi2>liyte at 0,800 ft. alt. on Mount Ilalcon, flowers greeuisli yellow, (Klorlesss, 
Nov. 15, 1900, Merrill (No. 5721). 
Related to /). tenellum Ames and /). WiUiamsii Ames, from Which it dillVrs in 
its jnuch shorter leaves and very dilVerent luhelluni. 
Dendrochilum (§ Platyclinis) glumaceum l.iiidl. B(d. Keg. 18(1, Ali.se. 
p. 23. 
Flowers white, sliglitly fragrant. Mount llalcoii, June 15-27, 1900, M. L. 
Merrit (No. 4373). 
Dendrochilum (§ Acoridium) hastatum Ames Orchidaeea', f:isc. 2 (1007) 
incd. 
On ha.ses of trees, flowers purpllsli, at 0,800 ft. alt. on Mount ilaleon, Nov., 
lOOO, Merrill (No. 5750).— Near same locality, June 15-27, 1906, M. L. Merritt 
(No. 4411). 
Dendrochiltfiti haRtatnm is clearly distinguished from all other species known 
to be natives of the Philippines by its hastate labelUim. 
Dendrochilum (§ Acoridium) Hutchinsonianum Ames Orchidaeea.', fasc. 2 
(1907) ined. 
In dense mossy thickets, on exposed ridge, both terrestrial and epiphytic at 
8,000 ft. alt. on Mount Halcon, flowers flesh colored, odorless, Nov., 1000, Merrill 
(N'o. 5813). 
D. Hutehinsoniannm is related to D. pumilum Reichb. f. from which it differs 
in its larger proportions and flowers. 
Dendrochilum (^ Platyclinis) magnum Ueichb. f. Walp. Ann. 6: 240 
(1801). 
Kpiphytc at 0,000 ft. alt. on Mount Halcrm, flowers pale brownish, odorless. 
Nov. 15, 1900, ^f<•n•iH (No. 5730). — Epiphyte in mossy forest on !Mount ITalcuu, 
Nov., 1000, Merrill (No. 5G11). 
Although the lahellum is not 3-lobed in any of the specinu'ns examined, 1 am 
of the opinion that my determination of the Mount Halcon material, while pro- 
visional, is the only safe one. waiting an examination of the tyi)e of /'. in'ii/unin. 
From a sketch of the labelluni in Lindh-y's licrbarinm at Kew it would sccni 
highly probable tliat the 3-lobed eliaracter was the result of malformation or 
injury. 
Distribution obscure. 
Dendrochilum (§ Acoridium) mfndorense A>ries Orehidncea', fase. 2 (1007) 
incd. 
Epiphyte with greenish yellow flowers, Mount Ualcon, Nov. 15, lOOG, Merrill 
(No. 5729).— Tn same locality, Nov., 1900, Merrill (No. 5795). 
Allied to D. recurvum Amos. 
Dendrochilum (§ Acoridium) pumilum Ueichb. f. Bonpl. 3: 222 (1855). 
Moimt Halcon, Nov., 1000, Merrill (No. 0100). 
Endemic in the Philippines. 
n 
