NOTES ON PHILIPPINE ORCHIDS, IV. 
7 
TROPIDIA Lindl. 
Tropidia calcarata sp. nov. 
Folia 1 (-2), ovato-Ianceolata, acuminata, acuta. Bracteae 
inflorescentiae lineares. Flores albi in racemo laxo. Sepala 
lateralia connata, scrotum conspicuum efficientia, basim labelli 
includens, partes terminales liberae, 3 mm longae, acutae. Sep- 
alum superius anguste lineari-lanceolatum. Petala lanceolata, 
subacuta vel obtusa. Labellum integerrimum, lanceolatum, carin- 
atum, calcar breve ad apicem obtusum. 
Related to T. angulosa Bl, Terrestrial, 2 to 3 dm high. Stems 
slender, about 2 mm thick, sheathed with obtuse, tubular bracts, 
1.5 to 3.4 cm long. Leaves 1 or 2 (only one bifoliate specimen 
among the three examined) sheathing at the base, ovate-lanceo- 
late, acuminate, acute, many-nerved, when mature about 1 dm 
long, about 5 cm wide. Peduncles terminal, shorter than the 
leaves, erect, 5 to 9 cm long, slender ; floral bracts linear about 1 
cm long. Racemes 3 to 5 cm long. Flowers white, 1.3 to 1.8 cm 
long. Lateral sepals connate beyond the middle, at the base 
forming a conical spur 3 mm long which encloses the spur of 
the labellum, free portion about 3 mm long, acute. Upper sepal 
linear, acute, about 1 cm long. Petals lanceolate, subacute or 
obtuse, 1 cm long, 2.5 mm wide near the base, mid-nerve prom- 
inent. Labellum slightly sigmoid, calcarate, lamina lanceolate, 
the apex very slightly cucullate. Just below the middle, near 
the margin, two inconspicuous longitudinally extended keels are 
situated. Main nerves three in number, slightly prominent. 
Spur obtuse, about 2 mm long, curving slightly toward the ovary, 
blunt. Gynostemium 7 mm long, rostellum bifid, exceeding the 
acuminate anther. 
Luzon, Province of Laguna, Mount Maquiling, Elmer D. Merrill 71hh, 
September 2, 1910. “Rare, only three plants seen.” 
Tropidia calcarata is very near T. angulosa Blume, but distinguishable 
from it by the leafage and by the carinae of the lip. 
Unfortunately I have seen very little material of T. angulosa and my 
knowledge of it is chiefly based on descriptions and plates. The material 
from which the above description was taken consists of three specimens. 
The unifoliate character appears to be normal. In the single case where 
two leaves terminate the stem, one of them is very small and bract-like. 
CESTICHIS Pfitzer. 
Cestichis Cumingii (Ridley) Ames Orchidaceae 1: 13. 
Liparis Cumingii Ridley Journ. Linn. Soc. Bot. 22: 292. 
What I blieve to be this species is well represented by specimens from 
Mount Mariveles, recently collected by C. M. Weber. The suborbicular lip 
with a minute tooth at the obscurely retuse tip, the very characteristic 
inflorescence, and the broad, somewhat oblanceolate leaves, agree very well 
