shorter than the leaves, pedicel comparatively short, 
about 1-2 cm. long, the 6-8 cm. long pedicellate ovary 
appearing to be the pedicel. Dorsal sepal lanceolate, 
acute, about 12 mm. long and 4 mm. broad, 3-nerved 
at the base, several-nerved above. Lateral sepals lanceo¬ 
late, acute or obtuse, 3-nerved at the base, several-nerved 
above, about 14 mm. long and 4 mm. broad. Petals 
linear, acute, 1-nerved, 3.5-4 mm. long, 0.5 mm. broad. 
Lip cordate-lanceolate, obtuse, auriculate at the base, 
thick and fleshy, about 4 mm. long and 2 mm. broad at 
the base. Column about 4 mm. long, with two terminal 
arms about 1 mm. long. 
Bulbophyllum Christophersenii has no near allies which 
are known to me, certainly there are no known species 
in Polynesia which are allied to it. 
Samoa : epiphyte in open woodlands, east of Olo, Island of Savaii, 
flowers purple, at 700-800 meters altitude, August 8, 1981, Christo- 
pherson Sf Hume 2297 (Type in Herb. Bishop Museum, Honolulu; 
Isotype in Herb. Ames No. 59298). 
Bulbophyllum Nagelii L. O. Williams sp. non). 
Herba epiphytica, repens. Pseudobulbi anguste-ob- 
pyriformes, unifoliati. Folia anguste-oblonga vel lanceo- 
lata, obtusa, coriacea. Inflorescentia densiflora, spicata; 
bracteae latae lanceolatae, acutae. Sepala lanceolata, 
acuminata, carinata, extus bracteolis parvis ornata. Pe- 
tala lineari-lanceolata, acuta, uninervia, paulo serrulata. 
Labellum arcuatum, bicarinatum. Columna cum duobus 
stelidiis. 
Repent epiphytic herbs. Stems slender, about 2-4 
mm. thick. Pseudobulbs narrowly obpyriform, about 
1.5-3.5 cm. long, 0.8-1.5 cm. thick, monophyllous. 
Leaves narrowly oblong to lanceolate, obtuse, abruptly 
contracted at the base, coriaceous, 7-12 cm. long, 1.4- 
2.3 cm. broad. Inflorescence densely flowered, spicate, 
[144] 
