23,3 Merrill: Diagnoses of Hainan Plants, II 249 



acuminatis, basi rotundatis ad late acutis, nervis utrinque 5 

 vel 6, tenuibus, obscuris, reticulis subobsoletis ; floribus 6 axil- 

 laribus, paucis, solitariis vel fasciculatis, sessilibus, circiter 6 

 mm diametro, sepalis glabris, ovato-lanceolatis, acuminatis, 3 

 mm longis ; petalis orbicularis, rotundatis, glabris, 0.5 mm dia- 

 metro; ovarium villosum; discus cupuliformis ovarium arete 

 includens. 



Fan Ta, McClure 9148, April 18, 1922, in thickets. 



This species in general closely resembles Cleistanthus suma- 

 tranus Muell.-Arg., C. gracilis Hook, f., and C. laevis Hook. f. 

 and, as with these species, the flowers are for the most part 

 borne on the ultimate branchlets in the axils of the smaller 

 leaves. Among other characters it differs from these species 

 in its orbicular petals. It is the first representative of the genus 

 to be found in China, as I have elsewhere shown that Cleistan- 

 thus monoicus Muell.-Arg. is identical with Bridelia tomentosa 

 Blume = B. monoica (Lour.) Merr. Sai Chik, to whom the 

 species is dedicated, was a general assistant to Mr. McClure on 

 his second trip to Hainan. 



BUXACEAE 



SARCOCOCCA EUPHLEBIA sp. nov. 



Frutex usque ad 1.5 m altus, glaber, ramis teretibus, ramulis 

 sulcato-angulatis ; foliis oblongo-lanceolatis, membranaceis, ni- 

 tidis, 10 ad 16 cm longis, 3 ad 6 cm latis, acuminatis, basi acutis, 

 perspicue 3-plinerviis, integris, costa nervisque supra impressis. 

 subtus valde perspicuis, nervis utrinque 4 vel 5, distantibus, 

 arcuato-anastomosantibus, reticulis laxis ; inflorescentiis axillari- 

 bus, quam petiolis brevioribus, paucifloris, sepalis bracteolisque 

 lanceolatis, acuminatis, 2 ad 2.5 mm longis, leviter ciliatis ; f ruc- 

 tibus ovoideis ad subglobosis, circiter 1 cm longis, rubris, in 

 siccitate rubro-castaneis. 



Ng Chi Leng, McClure 9589 (type), 8586, May 14, 1922, and 

 December 21, 1921, in forested ravines and on cliffs, altitude 

 about 750 meters. 



A species strongly characterized by its very prominently 

 nerved leaves, the midrib and the distant nerves being more or 

 less impressed on the upper surface and very prominent on the 

 lower surface. The basal nerves extend toward the apex at a 

 distance of from 6 to 10 mm from the margins of the leaves 

 and are more or less arcuate between the ends of the lateral 

 nerves. As variable as is Sarcococca saligna Muell.-Arg., I do 

 not see how the present form can possibly be referred to it. 



