Pilea.) CXXIIIp. URTICACEH (Rendle). 275 
hairs, otherwise glabrous, branched, internodes on the main stem 
#14 in. long. Leaves subovate, base acute, margin rather bluntly 
serrate, 3-nerved, 1}-2 in. long, 3-1} in. wide, with very numerous 
linear cystoliths ; petiole slightly channelled above, sparsely hairy, 
5-7 lin. long. Stipules broadly triangular, acute, about 2% lin. long 
and 1 lin. wide. Female inflorescences subglobose, 3-4} lin. in 
diam. ; peduncle exceeding the half of the leaf, }-1} in. long ; bracts 
subterete, about equal in length to the flowers, 1 lin. long ; perianth- 
segments oblong, apiculate, dark green at the tip. Achene sub- 
orbicular, slightly compressed, lenticular, 3 lin. broad, 3 lin. long. 
Mozamb. Distr. German East Africa: Central Uluguru; Lukwangula 
Plateau, 7800 ft., Goetze, 286. 
12. P. Engleri, Rendle. Stem tall, succulent. Leaves lanceolate, 
acuminate, base obtuse, entire, margin otherwise serrate-dentate, 
glabrous, shining, very densely covered on each face, especially 
beneath, with minute linear cystoliths ; petiole half as long as the 
blade. Stipules deciduous. Inflorescences glomerate, capituliform, 
long-stalked, the female smaller, the male nearly twice as large.— 
4 . Tes, Engl. Pfl. Ost-Afr. C. 163; not of Liebman nor of 
aker, 
Mozamb. Distr. German East Africa: Kilimanjaro; girdle forest, 6000- 
9500 ft., Volkens, 1494. 
13. P. usambarensis, Engl. Glied. Veg. Usambara, 55, and Pfl. 
Ost-Afr. C. 163. Stem succulent, creeping below, then erect. 
Leaves elliptic, acuminate, base subacute, entire, margin otherwise 
serrate, 3-nerved ; cystoliths linear, very numerous, especially on 
the lower face ; petiole half as long as the blade. Stipules deciduous. 
Inflorescences in pairs in the leaf-axils, capituliform ; peduncles a 
little shorter than the petiole ; pedicels half as long again as the 
subglobose flower-bud. 
Mozamb. Distr. German East Africa: Usambara; Mlalo, Holst, 78. 
14. P. kiwuensis, Engl. in Mildbraed, Wiss. Ergebn. Deutsch. 
Zentr.-A fr. Exped. 1907-8, ii. 190. Stem decumbent, with numerous 
‘rect branches up to 8 in. long, internodes about as long as the petioles. 
aves spreading, trapeziform, acute at apex and base, margin entire 
elow, serrate above, 2-1} in. long, 7 lin. wide, with scattered white 
ars on the upper face; petiole slender, 5-7 lin. long. Stipules 
‘Tiangular, acute, brownish, up to 14 lin. long. _ Inflorescences 
(female) in pairs, equal to or shorter than the petiole, corymbose, 
loutracted into a head, 23-3 lin. in diam., peduncle 23 lin. 
ong. 
youth Central. Belgian Congo: Sabyino, north-cast of Lake Kivu, 8800 ft., 
“doraed, 1692. 
