328 
AMES. 
DENDROBIUM Sw. 
Dendrobium (§ Grastidium) alagensis Ames sp. nov. 
Allied to D. salaccense (Bl.) Lindl. Plants about 6 dm. tall. Stems 
3-4 mm. in diameter, very graceful, comparatively slender, clothed by 
the tubular, sheathing bases of the numerous leaves. Leaves linear- 
lanceolate, acute, about 1.5 cm. apart, about 14 cm. long, about 1 cm. wide,- 
very unequally bilobed at the apex. Flowers 2, pale straw-yellow, green- 
ish tinged, leaf-opposed. Pedicels elongated, 1 cm. long, very slender. 
Lateral sepal oblong-lanceolate, subacute, 11 mm. long, 7 mm. wide at base. 
Upper sepal oblong-lanceolate, 11 mm. long, 3.5 mm. wide, subobtuse. 
Petals oblong, obtuse, 8-9 mm. long, about 3 mm. wide. Labellum 9 
mm. long, with several raised, longitudinal nerves, 3-lobed, cuneate at 
base; lateral lobes comparatively small, triangular, acute or subobtuse,. 
1 mm. long, 0.75 mm. wide at base; middle lobe suborbicular, 3.5 mm. 
long, 3.75 mm. wide; from the tip of the lateral lobes to the base of the 
.labellum 5.5 mm. 
Epiphyte on trees along the Alag River, Dec. 2, 1906, Merrill (No. 5846). 
Dendrobium (§ Virgatae) polytrichum Ames Orchiflacese, fasc. 2 (1907) 
ined. 
Epiphyte in humid forest at 800 ft. alt. along the Alag River, flowers white, 
fragrant, Nov. 5, 1906, Merrill (No. 5630). 
In habit similar to D. setifolium Ridl., having subulate leaves. The flowers, 
however, are well characterized by the 3-lobed labellum of which the apical lobe 
is provided along the margin with an elongated, copious fringe. 
Dendrobium Victoriae-Regi nae Loher Gard. Chron. ser. 3, 21: 399 (1897), 
var. exile Ames var. nov. 
Stems ramose, graceful, slender, 1.5-3 mm. thick. Leaves linear- 
lanceolate, 6 cm. long, 9 mm. wide below the middle, acuminate, bilobed 
at the tip, lobes acute. Lateral sepals 2 cm. long, 6 mm. wide. Labellum 
2.2 cm. long, 9 mm. wide near the apex. Similar to the type but much 
more slender and graceful throughout. Distinguished mainly by the 
more slender stems. 
Epiphyte in dense, wet, mossy forest, at 8,000 ft. alt. on Mount Halcon, flowers 
odorless, bluish purple, petals white at base, Nov. 20, 1906, Merrill (No. 5503) 
type. — At 6,500 ft. alt. on Mount Halcon, flowers purplish, June 15-27, 1906, 
M. L. Merritt (No. 4438). 
Endemic in the Philippine Islands. 
Dendrobium sp. 
Two plants of the section Aporum without flowers. Indeterminable. 
Growing on fallen trees along the Baeo River, April-May, 1906, It. C. McGregor 
(No. 286). 
