23,3 Merrill: Diagnoses of Hainan Plants, II 263 



acuminatis, cinereo-puberulis, 7 mm longis ; calycis lobis oblongo- 

 lanceolatis, acutis, cinereo-puberulis, 6 mm longis; corollae tubo 

 extus glabro, intus villoso, circiter 2.5 cm longo, ad apicem leviter 

 dilatato, lobis oblongis, circiter 1.5 cm longis; antheris lanceola- 

 tis, acuminatis, 2 mm longis, fructibus subellipsoideis, circiter 

 2.5 cm longis, in siccitate olivaceis, rugosis, apice rotundatis. 



Ka La, McClure 9183, April 20, 1922, in ravines. 



A species belonging in the general group with Kopsia fruticosa 

 A. DC, well characterized by its lanceolate, puberulent, relatively 

 large bracts and calyx segments, the bracts and flowers being 

 crowded in small groups at the tips of the few primary branches 

 of the inflorescences. The genus is new to China. 



ASCLEPIADACEAE 



HOYA HAINANENSIS sp. nov. 



Herbacea, scandens, petalis intus parce pubescentibus excep- 

 tis glabra, ramis teretibus, 1.5 ad 2 mm diametro; foliis in 

 siccitate chartaceis, ovato-ellipticis, penninerviis, oppositis, 6 ad 

 8 cm longis, 2.5 ad 4 cm latis, utrinque subaequaliter angustatis, 

 apice acuminatis, basi acutis, nervis utrinque circiter 4, tenuibus, 

 obscuris, subobliquis, reticulis laxis, inconspicuis ; petiolo 8 ad 

 10 mm longo; umbellis circiter 20-floris, pedunculo circiter 2 

 cm longo, pedicellis tenuibus, pedunculo subaequantibus ; floribus 

 albis, 8 ad 10 mm diametro, calycis lobis oblongo-ovatis, rotun- 

 datis, 1 mm longis, glabris, petalis oblongo-ovatis, acutis vel 

 acuminatis, intus puberulis. 



Ng Chi Leng, McClure 9759, May, 1922, on tree trunks, south 

 slope of the mountain. 



A species belonging in the same group with and apparently 

 closely allied to Hoya oblongacutifolia Cost., of Indo-China, 

 from which it can be distinguished by its somewhat smaller 

 flowers, the sepals rounded and glabrous, not acute and ciliate. 



HOYA OBSCURINERVIA sp. nov. 



Subherbacea, scandens, petalis intus exceptis glabra, ramis 

 teretibus, 3 ad 4 mm diametro; foliis oppositis, carnosis, in 

 siccitate coriaceis, pallidis, ellipticis ad oblongo-ellipticis, sub- 

 tenuiter acuminatis, basi plerumque acutis, obscure 3- vel 

 5-plinerviis, circiter 10 cm longis, 4 ad 4.5 cm latis, nervis 

 tenuibus, reticulis obsoletis; petiolo crasso, 2 ad 2.5 cm longo; 

 umbellis circiter 25-floris, longe pedunculatis, pedunculo circiter 

 8 cm longo, pedicellis tenuibus, 2 ad 2.5 cm longis; floribus 

 albis, circiter 1 cm diametro, sepalis oblongo-ovatis, subacutis, 



