8 
PACIFIC SCIENCE, VoL VI, January, 1952 
ligulati ancipitique, monophylli. Folium 
erectum, planum, coriaceum, ca. 6.5-8 cm. 
longum, 8-9-5 mm. latum, leviter undulatum, 
lineari-ligulatum usque ad oblongo-ligula- 
tum, apice profunde emarginatum. Spatha 
ensiformis, scariosa, ca. 2 cm. longa, 2.5-3 
mm. lata. Flores solitarii vel pauci, fugaces, ca. 
4.5 cm. diametientes. Sepala lineari-lanceo- 
lata, longe-caudata, 5 -nervosa, lateralia cum 
pede columnae mentum obtusum triangulum 
formantia. Petala filiformia, longe-caudata, 
basi paululum expansa. Labellum 9 mm. 
longum, 1.5-4. 5 mm. latum, ad basim longe- 
unguiculatum; lobis lateralibus erectis, elon- 
gato-triangularis, obtusis truncatisve, nervo- 
sis; lobo intermedio magno, basi oblongo, 
apice patente, ellipsoideo, margine undulato 
crispatoque, obscure 3-lamellato papillosoque. 
Columna brevis, obtusa. 
Small epiphyte in sunny places of primary 
forest, clustered. Rhizome abbreviated, re- 
pent, covered with sheathing scarious cata- 
phylls. Pseudobulbs erect, yellowish when 
dry, 6-13 cm. long, 3-5 mm. thick basally, 
narrowing to 2.5-3 mm. apically, ovoid- 
attenuate basally, narrowing above to an 
ancipitous ligulate prolongation, at or near 
the apex of which the solitary leaf and large 
floral sheath are produced. Leaf erect, plane, 
coriaceous, about 6.5-8 cm. long, 8-9.5 mm. 
wide, vaguely undulate, linear-ligulate to 
oblong-ligulate, distinctly and deeply emar- 
ginate at apex, slightly conduplicate at base. 
Floral sheath ensiform, scarious, about 2 cm. 
long, 2.5-3 mm. wide. Pedicellate ovary 
arcuate, filiform, about 2.5 cm. long, less than 
1 mm. thick. Flowers ”greenish-white with 
pink on inside of tube” {fide collector), soli- 
tary, paired or few, successive, fugacious, 
about 4.5 cm. in diameter. Dorsal sepal about 
2 cm. long, 1 mm. wide basally, narrowing to 
0.25 mm. near apex, erect, twisted, 5-nervose. 
Lateral sepals similar in shape and size, about 
2 mm. wide basally, spreading or down- 
curved, forming a triangular, obtuse mentum 
with the column-foot which is 4.5 mm. deep, 
the margins involute. Petals about 1 cm. 
long, 0.25 mm. or less wide, filiform, long- 
caudate, slightly broader basally. Lip 9 mm. 
long, 1. 5-4.5 mm. broad when expanded, 
long unguiculate basally; lateral lobes erect 
at sides of column, deep purple when dry, 
elongate-triangular, obtuse or truncate, prom- 
inently nervose; midlobe very large, white 
suffused with pale yellow and with a deep 
purple area and venation near base which ex- 
tends toward apex, basally oblong, enlarging 
into a spreading ellipsoidal portion with un- 
dulate and crisped margins at apex; median 
disc obscurely 3-lamellate and more or less 
furnished with clavellate papillae. Column 
2.5 mm. long, blunt, with a foot; anther 
yellow when dry. 
Mt. Beirut, 2,200 ft, alt.: on tree trunks in 
open, sunny places; abundant throughout the 
primary forest; flowers greenish- white with 
pink on inside of tube. August, 1950, P. A. 
Adams 7, type, deposited in the Herbarium 
of the University of California at Berkeley 
(916872); Mt. Sankaku, 1,100 ft. alt.: on tree 
trunk, same sp. as #7. August, 1950, P. A. 
Adams 30. A sterile specimen, with living 
material growing • in the Botanical Garden 
collections, obviously referable to this species. 
This attractive dwarf Diplocaulohium is ap- 
parently closest to D. nitidissimum (Rchb.f.) 
KraenzL, the type species of the genus and a 
native of the Admiralty Islands, the Solomon 
Islands, and New Ireland. The present plant 
differs materially from that species, however, 
in its rather larger dimensions in all parts, the 
shape of the labellum and other floral parts, 
and vegetative characters. Living material of 
this interesting addition to the Caroline or- 
chid flora is in cultivation at the University of 
California. 
Diplocaulohium elongaticolle (Schltr.) A. D. 
Hawkes, comb, nov, 
Dendrohium elongaticolle Schltr., Engl. Bot. 
Jahrb. 56: 465, 1920. 
A native of Koror and Babelthuap Islands 
in the Palaus, and of Yap. 
