Pilea.) URTICACEAE. 411 
6 var. — Leaves as in 7, but gray- pubescent underneath. — U. glabra, 
var. oni imiees 
! Ulupala richotomous ee branch; Kauai, 
Peg (Waa) cymes Alchotonions, the pitiaae exc eeding t perigone. 
Hooker & A rica 8 specific so is much older than We ar. but as the former is 
not quite appropri and the rt has passed into nape ‘andolle’s Prodomn mus, I hay 
not deemed advisa rats et ri oar a name: «Opuhe». The plant yields a mos 
fibre, equally esteemed and used for the same purposes as that of Touchardia cern 
2. U. Kaalae, Wawra, in Flora, 1874, p. 542. — A small tree, 18 ft. 
_high. Leaves cordate, palmately 3—5-nerved, about 3‘ in each diameter, 
on petioles of the same length or more, abruptly acuminate, coarsely 
serrate, with the serratures broad and yan apiculate, the ‘dete sinus 
deep and narrow, with the rounded lobes -overlapping, membranous, 
sparingly dotted w ith reddish resinous specks, gray- pubescent underneath 
along the nerves. Stipules small triangular, bicarinate, bidentate, ciliate, 
persistent. Panicles or icin eymes in the axils of the upper 
leaves, as long as the leaves or longer, glabrous, the slender peduncle as 
long as the petiole, the branches rather straight and bracteolate. Fem. 
othed. 
perigones aad pedicellate, single bles 3—4-to 
Oahu, ¢ 2 le Puakea of the Kaala range (Wawra). Leaves yon ae of Tilia 
grandifiora. Wawra finds a close resemblance of this species to Fat Pr 1, Weal, from 
Brazil, also ibe U. Jacquinii, Wedd., a variety of U. Caracasana, 
9. PILEA, Lindl. 
Flowers unisexual, glomerate. Male perigone 4-, rarely 2- or 3-parted, 
ni 
sessile shortly penicillate stigma. Achene suboblique, compressed, naked 
or nearly so. Seed without albumen, the ovate cotyledons longer than 
the radicle, — Erect or prostrate, — ooting herbs with on leaves. 
Stipules axillary, entire. Glomerules of flowers simple or arranged in 
dichotomous or eon mous cymes. 
arge genus of 160 species, spread over the tropical and subtropical regions of the 
whole world. 
1. P. peploides, Hook. d: Arn. in Bot. Beech. p. 96. — DC. Prod. XVI, 
ct. I, p. 109.-— A low prostrate herb, branching from the base, the branches 
2—4‘ long, floriferous in most axils. Leaves of each pair equal, small, 
ovate-rhomboidal, 3—4“ in each diameter, obtuse, minutely crenate or 
almost entire, more or less cuneate at the base, teint nerved, the lateral 
nerves reaching the middle of the blade, membranous, dark-papillate 
neath, on petioles of 2—3”. Stipules very small, Cymes androgynous 
'Yy glomerate, apparently sessile, the flowers minute on very tines 
pedicels. Male perigones few, ‘thei lobes shortly mucronate. Fem. 
