Pygm^opremna. 161 



villous; stamens 4, subequal, inserted in the lower part 

 of the corolla-tube, included, or nearly so; style with 

 very shortly bifid apex; ovary 2-celled, cells 2-ovuled; 

 drupe small, included in the calyx, obovoid, with fleshy 

 exocarp and thin, coriaceous endocarp, with 1 usually (by 

 suppression) 1 -celled, 1 -seeded, sometimes 2-celled, 2-seeded 

 pyrene; seeds oblong, compressed, exalbuminous. 



Distribution: Luzon. 



Without regard to characteristics of less consequence, the 

 genus differs from Premna only by its extraordinarily small 

 size; therefore perhaps we had better combine it with that 

 genus, since in Clerodendron we met with an analogue case 

 (C. pumilum Ridl. = C. sarawakana (Ridl.) H. J. Lam). 



1. P. humilis Merrill, Phil. Journ. Sci. Bot. V, 225, 

 (1910); Engl. u. Prantl. Nat. Pfl. fam.. Nachtr. IV. 267. — 

 A small undershrub. reaching only 15 cM., with few, if 

 any branches; branchlets, cymes and petioles pubescent; 

 leaves membranous or subchartaceous, obovate-oblong. 

 apex acute or shortly acuminate, the widest part about 

 Vs from the apex, and from this point gradually narrowing 

 to the acute base, margins entire, above glabrous with 

 some hairs upon the nerves and along the margins, 

 eglandular, beneath glabrous, sometimes somewhat pube- 

 rulous on the nerves, with or without some glands; pairs 

 of nerves 5—6; 3—12 by 1—5 cM., petioles 0.2—0.4 cM.; 

 terminal cymes 1—2 cM. long and wide, peduncles 

 0.2—1 cM., pedicels 0.2 cM., with small bracteoles; ca/yjc 

 0.15 — 0.2 cM„ with 5 subequal teeth, in fruit somewhat 

 enlarged, 2-lipped; corolla white or greenish- white, glabrous 

 on the outer surface, 0.45 cM., 2-lipped, upper Up 0.2 cM. 

 in diam., entire, lower lip 3-lobed, middle-lobe 0.16 cM. in 

 diam., the lateral, ones 0.1 by 0.15 cM.. reflexed; throat 

 scarcely villous; stamens 0.1 cM., anthers 0.06 cM. with 

 parallel thecae; style hardly 0.1 cM., very shortly bifid at 

 apex; ovary glabrous; drupe 0.5 cM. long, 0.4 cM. in diam. 



II 



