260 MERRILL. 



matic, woody rootstocks, the stems brown, angled and sulcate 

 when dry, with about 5 nodes. Leaves 4, whorled at the apex 

 of the stem, membranaceous, broadly obovate, 12 to 15 cm long, 8 

 to 9 cm wide, slightly shining, the lower surface paler than the 

 upper one, the apex prominently and sharply acuminate, the base 

 acute, margins sharply and rather finely serrate, the teeth more 

 distant below, the basal margins quite entire; nerves about 9 on 

 each side of the midrib ; petioles about 1 cm long. Inflorescence 

 terminal, about 15 cm long, slender, the peduncle about 7 cm long, 

 the branches opposite, usually 4 in two pairs, the lower ones about 



6 cm long, the internode 2 cm long or less. Anther-scale about 

 2.5 mm long, divided nearly to the base into three lobes, the 

 lateral lobes a little shorter than the middle one, oblong, obtuse, 

 the middle one with a 4-locellate anther, the laterial ones with 

 2-locellate anthers ; anthers about 1 mm long, half as long as the 

 lobes or less. Fruit unknown. 



Luzon, Province of Cagayan, Abulug River, Weber 1582, January, 1912, 

 growing in forests, altitude about 250 m, the roots said to be fragrant, and 

 the fruits white, although none of the latter were preserved. 



A species manifestly closely allied to Chloranthus henryi Hemsl., of 

 China, apparently differing chiefly in its smaller flowers, which are about 

 one-half as large as in Hemsley's species. In habit, general appearance, 

 vegetative characters, etc., the Philippine plant very closely matches a 

 specimen in the Herbarium of the Bureau of Science, representing 

 Chloranthus henryi Hemsl., collected by Farges in Su-tchuen ; ,the only dif- 

 ference appears to be in the flowers. I had at first determined the Luzon 

 plant to be the same as Chloranthus oldhami Solms-Laub., a species known 

 only from Formosa, and of which the flowers are unknown. That species, 

 however, is described as having its leaves subsessile, which does not apply 

 to our plant, nor are the leaves of our species crenate-dentate throughout, 

 the lower 2 to 4 cm of the margins being quite entire. 



ULMACEAE. 



TREMA Lour. 

 TREMA VULCANICA sp. nov. 



Frutex circiter 2 m altus subtus foliis ramulisque villosis; 

 foliis numerosis, confertis, oblongo-ovatis vel oblongis, usque ad 

 5 cm longis, acutis vel acuminatis, basi leviter cordatis, supra 

 scabridis, petiolo circiter 2 mm longo; cymis brevissimis, vix 



7 mm longis, floribus 5-meris. 



A shrub about 2 m high, the branchlets, petioles, and the lower 

 surface of the leaves, especially on the nerves, rather promi- 

 nently villous with rather short, pale, spreading or somewhat 

 appressed hairs, the older branches terete, glabrous or nearly 



