56,4 Ames and Quisumbing: Philippine Orchids, V 457 
shape of the spur, and in its dentieulate-margined labellum 
with ovate-rounded lamina. 
DENDROBIUM PHILLIPSII sp. nov. Plate 1, figs. 6 and 7; Plate 3, figs. 11 to 19; Plate 
6, fig. 1. 
Aff. D. Fairchildae. Caules penduli, aggregati, teretes, te- 
nuiter-fusiformes, 45 ad 60 cm longi, 5 ad 7 mm in diametro. 
Folia lanceolata, acuta, papyracea, decidua, 11.5 ad 12.5 cm longa, 
1.5 ad 2 cm lata. Racemi brevissimi, pauciflori; braeteae lan- 
ceolatae, acutae, 5 ad 6.5 mm longae. Sepala lateralia obliquis- 
sime triangulari-ovata, acuta, 1.6 ad 1.7 cm longa, columnae 
pedem secundum 1.2 ad 1.3 cm lata; mentum valde elongatum, 
obtusum, ad apicem haud inflexum 2.7 ad 3 cm longum. Sepalum 
dorsale ovato-lanceolatum, subacutum vel obtusum, 1.8 ad 1.9 cm 
longum, 9 ad 10 mm latum. Petala late oblonga vel oblongo- 
elliptica, apice rotundata, 1.7 ad 1.8 cm longa, circiter 8 mm 
lata. Labellum simplex, ovato-oblanceolatum cum parte infe- 
riore oblonga sensim dilatata, antice ovato-triangulare, acutum, 
circiter 3.5 cm longum et 1.5 cm latum. Gynostemium brevis- 
simum, crassum, apice tridentatum cum stelidiis lateralibus trian- 
gulari-ovatis leviter recurvatis et dente medio tenui, in pedem 
elongatum extensum. 
Stems pendulous, crowded, terete, elongate, fusiform, 45 to 60 
cm long, 5 to 7 mm in diameter, reddish-brown, smooth; inter¬ 
nodes 2.5 to 4.5 cm long. Leaves lanceolate, acute, 11.5 to 12.5 
cm long, 1.5 to 2 cm wide, papery, deciduous. Racemes short, 
few-flowered, 3 to 4 cm long; bracts lanceolate, acute, greenish, 
5 to 6.5 mm long, 3 to 3.5 mm wide when expanded. Flowers 
about 1.8 cm across. Pedicellate ovary about 3 cm long. Lat¬ 
eral sepals very obliquely triangular-ovate, acute, 1.6 to 1.7 
cm long, 1.2 to 1.3 cm wide along the column-foot; the mentum or 
spur stout, elongate, obtuse, straight, 2.7 to 3 cm long, 1.2 to 1.3 
cm wide near its base. Dorsal sepal broadly ovate-lanceolate, 
subacute or obtuse, 1.8 to 1.9 cm long, 9 to 10 mm wide. Pe¬ 
tals broadly oblong or oblong-elliptic, rounded at the apex, 1.7 
to 1.8 cm long, about 8 mm wide. Labellum simple, ovate-oblan- 
ceolate with the lower part gradually narrowed and adorned with 
a low transverse lacerate ridge, about 3.5 cm long, triangular- 
ovate near the apex, acute, about 1.5 cm wide. Gynostemium 
very short, broad, with the lateral stelidia triangular-ovate and 
slightly recurved, and middle tooth slender. Foot elongate. 
