ORCHIDACE.E 



cinati?), 4 mm. longi. Calcar dependens, 5 mm. longum ad api- 

 cem subulatum, supra apicem clavatum. Gynostemium ? 



The type consists of a single specimen. In habit it suggests a 

 depauperate H. aristulifera, and in fact has aristulate tips to the 

 leaves. The lateral sepals are dependent; near the apex, on the 

 dorsal side, the thickened mid-nerve protrudes to form a subulate 

 tip (as in H. repens). The underground part of the plant in the 

 type specimen is apparently incomplete. From the parts remain- 

 ing it would seem to have had two cylindrical, fleshy, tuberoid 

 roots 2 cm. beneath the surface of the ground. The flowers of the 

 type are in a poor state of preservation, consequently it is im- 

 possible to describe the details of the gynostemium. 



Mindanao, Lake Lanao, Camp Keithley, Mary Strong Clemens s. n. 

 November, 1906. 



4. DISPERIS Sw. 



Only one species of Disperis has been reported from the Philip- 

 pines. Schlechter ascribes fifty species to the genus, of which more 

 than forty are natives of Africa. D. rhodoneura Schltr. comes from 

 New Guinea, and JD. pkilippinensis Schltr. from the Province 

 of Papanga, Luzon. The type of the latter was collected in Sep- 

 tember, 1905, at an altitude between three hundred and seven 

 hundred meters, by Elmer D. Merrill (4215). It is a small ter- 

 restrial species, hardly 8 cm. tall, with sessile, ovate, acute leaves 

 ± 1 cm. long. The flowers are purplish and odorless. In habit it 

 resembles D. Bolusiana Schltr. and D. villosa Lindl. 



1. Disperis philippinensis Schltr. in Fedde Rep. 9 : 436. The 

 flowers are said to be similar to those of D. zeylanica Trim. 



[17] 



