1925] MERRILL, THE FLORA OF HAINAN 137 



pauciflora Pitard of Indo-China belongs in Smythea rather than in Venti- 



lago. 



STERCULIACEAE 

 Heritiera Dryander 



Heritiera parvifolia, sp. nov. 



Arbor circiter 30 m. alta (fide Chun), ramis glabris, ramulis gracilibus, 

 circiter 1 mm. diametro, dense lepidotis; foliis subcoriaceis, lanceolatis 

 ad oblongo-lanceolatis, 6 ad 8 cm. longis, 1.5 ad 3 cm. latis, acuminatis, 

 basi acutis ad subrotundatis, triplinerviis, in sicco pallidis, supra sub- 

 olivaceis nitidis glaberrimis, subtus dense subargenteo- vel brunneo- 

 lepidotis; nervis utrinque circiter 6, subtus distinctis; petiolo 1 ad 1.5 cm. 

 longo, lepidoto; inflorescentiis axillaribus dense subferrugineo-stellato- 

 tomentosis 3 ad 5 cm. longis; floribus circiter 4 mm. longis, calyce 5- vel 6- 

 lobato, extus dense, intus leviter stellato-tomentoso, lobis oblongo-ovatis 

 obtusis 1.5 ad 2 mm. longis; androphoro gracili, glabro 1 mm. longo, basi 

 disco crasso 0.8 mm. diametro cincto; antheris 8 ad 10, 1-seriatis, in capi- 

 tulis 0.8 mm. diametro dispositis. Fructibus ignotis. 



Hainan: northwest slope of Five Finger Mountains, W. Y. Chun, no. 

 2100, June 29, 1920, apparently in forests. 



While by definition this species falls in Heritiera, on account of the thick 

 disk surrounding the base of the androphore, yet I cannot escape the 

 conviction that its true relationships are with the Philippine Tarrietia 

 sylvatica (Vidal) Merr., and that when fruits are available it will probably 

 be best to transfer it to the latter genus. In Heritiera it is well character- 

 ized by its small, few-nerved leaves. 



FLACOURTIACEAE 



Flacourtia L'Heritier 



Flacourtia indica (Burm. f.) Merrill, Interpret. Herb. Amb. 377 (1917); 



Enum. Philip. PI. in. 112 (1923). 



Gmelina indica Burman f., Fl. Ind. 132, t. 39, fig. 5. (1768). 

 Flacourtia sepiaria Roxburgh, PI. Coromandel, i. 48, t. 68 (1795). 

 Flacourtia Balansae Gagnepain in Bull. Soc. Bot. France liv. 521 (1908) 

 Lecomte, Fl. G6n. Indo-Chine, i. 235, fig. 23 (1909). 



Hainan: road from Hoihow, Namfong, and without locality, TV. Y. Chun, 

 nos. 975, 1007, 1068, February and March, 1920. 



This species was previously recorded from Hainan by Gagnepain, as 

 Flacourtia Balansae Gagnep., who gives its range as Indochina, Hainan, 

 and the Philippines. My Hainan material presents staminate and pis- 

 tillate flowers, the latter with 6 styles, and the branches are spiny, some 

 of the ultimate branchlets bearing spines up to 2 cm. in length, the 

 older branches with spines up to 4 cm. long. The distinguishing characters 

 given by Gagnepain as between Flacourtia sepiaria Roxb. and F. Balansae 

 Gagnep. are apparently not constant, and I have accordingly reduced 



