120 The Philippine Journal of Science - ms 



GENTIANACEAE 



GENTIANA Linnaeus 

 GENTIANA CLEMENTIS sp. nov. 



Species G. atkinsonii Burkill valde affinis, differt foliis paullo 

 minoribus, floribus paullo brevioribus, corollae lobis haud reticu- 

 lars, acutis. 



A caespitose, perennial, glabrous plant 10 cm high or less, 

 from stout, elongated, perpendicular roots, the basal leaves rosu- 

 late, the flowering branches up to 6 cm in length, spreading or 

 ascending, several from each plant, leafless or with but one pair 

 of leaves in addition to those subtending the flowers. Basal 

 leaves 3 to 5 cm long, 4 to 6 mm wide, coriaceous, shining, sessile, 

 lanceolate, acuminate, the midrib prominent, those on the flower- 

 ing branches similar to the cauline ones but smaller. Flowers 

 pale-purplish, sessile or subsessile, 2 to 4 at the apex of each 

 branch, subtended by a whorl of 2 to 4 bract-like leaves. Calyx- 

 tube 6 to 8 mm long, narrowed below, the teeth lanceolate, 

 acuminate, 3 to 4 mm long. Corolla about 2.3 cm long, the 

 lobes oblong-ovate, acute, 5 mm long, the tube narrowed below, 

 plicate, the alternating small lobes triangular-acute, about 1 mm 

 long. Stamens about as long as the corolla-tube; style recurved, 

 3 mm long. 



British North Borneo, Mount Kinabalu, Paka Cave to Low's Peak 

 and Paka Cave to Lobang, Mrs. Clemens 10703 (type), 10650, November 

 13 and 15, 1915, in wet ground, associated with Potentilla, altitude 2,400 

 to 4,000 meters. 



This is the third representative of the genus to be found in Borneo, the 

 other two being known only from Mount Kinabalu, and both of them 

 represented in Mrs. Clemens's collection. It is a distinct Asiatic type 

 and is very closely allied to Gentiana atkinsonii Burkill, a species known 

 only from Loh Fau Mountain, Kwangtung Province, China, of which I have 

 a topotype (Merrill 10326). It so strongly resembles Burkill's species 

 that had the specimens described above been collected on Loh Fau Mountain 

 it is very probable that botanists generally would have referred them to 

 Gentiana atkinsonii Burkill as a somewhat reduced form. The Kinabalu 

 specimens differ from Burkill's specimens in the small size of the plants, 

 the shorter flowering branches, smaller leaves, and somewhat smaller 

 flowers. 



ASCLEPIADACEAE 



CEROPEGIA Linnaeus 

 CEROPEGIA BORNEENSIS sp. nov. 



Herba scandens, glabra, ramulis teretibus; foliis membran- 

 aceis, oblongis ad oblongo-ovatis, usque ad 10 cm longis, acutis vel 

 acute-acuminatis, basi rotundatis vel subtruncatis, nervis utrin- 



