ORCHIDACE 
duo, complanati, unus prope basim lobi lateralis utriusque. Co- 
lumna minuta, rostellum prominens. 
Dendrochilum binuangense at first glance resembles D. mi- 
crochilum (Schitr.) Ames so closely that it might readily be mis- 
taken for it. The floral bracts are acuminate and end in a sharp 
triangular point, and the lateral lobes of the labellum are con- 
spicuously longer than the middle lobe, exceeding the column 
when erect. In D. microchilum, on the other hand, the floral bracts 
are obtuse and the lateral lobes of the labellum are not much 
longer than the middle lobe. 
Luzon, Province of Tayabas, Mount Binuang, Ramos & Edano Bur. 
Sci. 28620, May 27, 1917. 500 meters altitude. Found on the summit of 
the mountain on a tree. Flowers white. 
Dendrochilum (§ Acoridium) cinnabarinum Pfitz. in Engl. 
Pflanzenreich IV, 50. II. B. 7 (1907) 104. 
This very distinct species, of which a detailed account was 
given in Orchidaceae 3 (1908) 10, t. 27, was originally reported 
from Benguet Province, Luzon, without precise data. Since its 
discovery by A. Loher it has been collected several times, but 
always on Mount Pulog, and would seem to be restricted in its 
distribution. 
Luzon, Benguet Province, Mount Pulog, Elmer D. Merrill 6475, May 
1909. In mossy forest. 7500 feet altitude; 2. C. McGregor Bur. Sci. 8844, 
July 1909; Curran, Merritt & Zschokke For. Bur. 16348, January 1909. 
In hard wood forest on tree. 8800 feet altitude. Flowers coral red; George 
Boettcher, June 1918. Flowers blood red. 
Dendrochilum (§ Platyclinis) ecallosum Ames sp. nov. Ra- 
dices fibratae, elongatae. Pseudobulbi caespitosi, 12-20 mm. longi, 
pyriformes, in sicco valde rugosi, longitudinaliter sulcati, fla- 
vescentes, usque ad apicem attenuati, monophylli. Folium peti- 
olatum, cum petiolo 6-10 cm. longum, 1.3-2 em. latum, ob- 
longo-ellipticum, subacutum, in sicco nervosum, nervo marginali 
