52 ,4 Ames and Quisumbing: Philippine Orchids, IV 445 
Sepals and petals are straw yellow 2 and spotted with carmine 
or oxblood red; the middle lobe of the labellum is empire yellow, 
covered on the upper surface with numerous white hairs, the 
lateral lobes are white and spotted with oxblood red. 
The alliance of this species is doubtless with Dendrobium acn- 
minatissimum (Blume) Lindl. which had been found but twice 
in the Philippines. It differs, however, conspicuously in the size 
and color of the flowers, and in the details of the labellum. 
This species is dedicated to Mrs. K. B. Day who has graciously 
and kindly cooperated with the junior author in giving him free 
access to her collections of living orchids and is a testimonial to 
her interest in Philippine orchids. 
DENDROBIUM PLICATILE Lindl. var. CONVOCARII var. nov. Plate 1, figs. 5 and 6; 
Plate 4, figs. 10 to 19; Plate 8, fig. 2. 
Aff. D. plicatili. Caules 35 ad 65 cm longi, ramosi. Pseudo- 
bulbi parvi, monophylli. Folia sessilia, elliptica vel oblongo-ellip- 
tica, obtusa, 4 ad 6.5 cm longa, 2.5 ad 3 cm lata. Flores 
odoratissimi, singuli, fugacei, parvi, 2.8 ad 3 cm lati. Sepala 
oblongo-lanceolata, subacuta, 1.7 ad 1.9 cm longa, 6 ad 6.25 mm 
lata, mentum conicum, obtusum, circiter 5 mm longum formantia. 
Petala anguste oblonga, subacuta, 1.4 ad 1.5 cm longa, 3 and 3.5 
mm lata. Labellum 1.6 ad 1.9 cm longum, basi cuneata; lobi la- 
terales oblique triangulari-ovati, apice rotundati, parte libera 3 ad 
4 mm longa, lobus intermedius subquadrato-flabellatus, retusus, 
margine valde undulato et lobulato; carinae usque supra medium 
3, cum mediana obscura, deinde elevatulae et undulatae. Gynos- 
temium brevissimum. 
Khizomes creeping, 6 to 8 mm in diameter. Stems rigid, sub¬ 
erect, smooth, shining and polished, jointed, 35 to 65 cm long, 
4 to 6 mm in diameter, branching. Pseudobulbs monophyllous, 
shining; the leaflets ones usually ellipsoid or fusiform, up to 6 
cm long; the leaf-bearing ones smaller, narrowly oblong-cylin- 
dric or oblong-obconic, 1.5 to 2.5 cm long. Leaves terminal, 
sessile, solitary, elliptic or oblong-elliptic, obtuse, 4 to 6.5 cm 
long, 2.5 to 3 cm wide. Flowers fragrant, solitary, axillary at 
the summit of apical pseudobulbs or at nodes at the apex of 
very short slender branches above the pseudobulbs, fugaceous, 
2 The color terms used are mostly from Ridgway’s Color Standards and 
Color Nomenclature (1912). 
