Girardinia.] — Oxxttp. URTICACER (Rendle). 267 
segments with merely a small thickening of the mid-vein below the 
apex, hispidulous on the back. Female shorter than the petioles, 
the cymules densely crowded on the axis or its short branches, densely 
beset with spreading white stinging hairs ; flowers subsessile ; perianth 
consisting of a very concave upper segment obscurely toothed at the 
apex and a caducous slender transparent hair-like lower segment. In 
fruit the inflorescence forms capitate or generally thick oblong or 
cylindrical spike-like simple or branched masses } lin. to 2 in. long, 
densely covered with the spreading stiff stinging hairs. Achene 
broadly ovate or somewhat cordate, 1} to nearly 2 lin. long —Wedd. 
in DC. Prodr. xvi. i. 103, and in a more limited sense, in Ann. Sci. 
Nat. 4me sér. i. 181; Enel. Hochgebirgsfl. Trop. Afr. 193, PA. Ost- 
Afr. C. 163, in Engl. Jahrb. xxx. 296, and in Mildbraed, Wiss. Ergebn. 
Deutsch. Zentr.-Afr, Exped. 1907-8, ii. 190. G. adoénsis, Wedd. in 
Ann. Sci. Nat. 4me sér, i. 181 ; Hiern in Cat. Afr. Pl, Welw. i. 990. 
Urtica adoénsis, Hochst. ex Steud. in Flora, 1850, 259; A. Rich. 
Tent. Fl. Abyss. ii. 262. U. condensata, Hochst. ex Steud. Lc. 260 ; 
A. Rich, Lc. 263. 
Upper Guinea. Southern Nigeria: Ewena, Thompson, 514! 
Nile Land. Abyssinia: near Adowa, Schimper, 101! Mount Sholoda, 
Schimper, 1888! Mai Sigamo, 6200 ft., Schimper, 277! Sanka Berr, 7000 ft., 
Schimper, 1256! and without precise locality, Schimper, 816! British East 
Africa : Rabai, Taylor! Kibwezi River, Kaessner, 691! Eldama Ravine 
and Mau, 7000-7500 ft., Whyte ! 
_ Lower Guinea. Angola: Pungo Andongo; Welwitsch, 6295, partly (6296 
m Herb. Kew.)! Huilla; Monino, Welwitsch, 6289 ! 
— Central. Belgian Congo: Niragongo, north of Lake Kivu, Mildbraed, 
oUb~. 
Mozamb. Distr. German East Africa: Livingstone Mountains, Goetze, 1175. 
Nyasaland: Mount Chiradzulu, Whyte! Shire Highlands; Blantyre, Buch- 
anan, 71! 166! Nyika Plateau, 6000-7000 ft., Whyte, 227! Manganja 
Hills, Waller! Tshinmuzo, 3000 ft., Kirk! and without precise locality, 
uchanan, 557 ! 
Very near the Himalayan G. heterophylla, Don. 
7. PILEA, Lindl. ; Benth. et Hook. f. Gen. Pl. iii. 384. 
Flowers moncecious or dicecious. Male flowers: Perianth 2-5-, 
generally 4-partite; segments valvate, concave, somewhat fleshy, 
With a horn-like appendage below the membranous apex. Stamens 
as many as the perianth-segments; ovary rudimentary. Female 
flowers: Perianth 8-partite ; segments unequal, generally greenish, 
the median larger than the two lateral, and dorsally gibbous or 
hooded, the lateral flat, often very small. Staminodes opposite to 
the perianth-segments, scale-like, inflexed, ultimately reflexed ex- 
pelling the ripe fruit. Ovary straight ; ovule erect from the base of 
the chamber. Stigma sessile, shortly penicillate. Achene ovate 
or roundish, compressed, smooth or scabridulous, more or less incom- 
pletely enveloped by the persistent perianth-segments. Seed-coat 
