68 CXXIlIc, MORACEZ (Rendle). [| Dorstenia. 
3 lin. broad, and a bract-arm at each end, narrowly linear, obtuse, 
about 24 in. long and ? lin. broad. Flowers numerous, very small. 
Mozamb. Distr. German East Africa : Uhehe ; on the Ruaha River, Goetze, 
429, 
85. D. Walleri, Hemsl. in Gard. Chron. 1893, xiv. 178. A 
fleshy plant; stem simple, succulent, with very short hairs, erect 
from a depressed almost disciform tuber about 14 in. in diam., 8-16 
in. high, bearing minute reduced leaves at the lower nodes. Leaves 
aggregated in the upper part of the stem, elliptic, obtuse, with a 
cuneate unequal base passing into the petiole, margin slightly 
undulate, scabridulous, 24-53 in. long, 1-2 in. wide, glabrous ; 
lateral nerves 6-9 on each side, curving upwards; petiole of the 
lower leaves 3—3 in. long, of the upper ones shorter. Stipules linear- 
ligulate, 1-3 lin. long, often persistent. Inflorescence solitary ; 
stalk up to 1-2 in. long; receptacle stellate, 4-7-rayed, longest 
diameter 4-1 in., surface (especially round the female flowers) 
bearing minute white hairs, margin crenulate, passing at each ray 
into a bract-arm, which is narrowly triangular below, becoming 
filiform above, slightly dilated at the tip, 3-3 in. long, with scabri- 
dulous margin. Male flowers 1-3-androus; female numerous 
and distributed ; ovary shortly stalked, the stalk lengthening after 
fertilisation ; style slender, undivided. Endocarp angularly ovoid, 
about 4 lin. in diam., brownish, sides verruculose, with a narrow 
dorsal crest.—D. caulescens, Schweinf. ex Engl. in Engl. Jahrb. xx. 
144 ; Engl. Monogr. Morac. Afr. 22, t. v. fig. C.; Durand & Schinz, 
Etudes Fl. Congo, 248. D. gourmensis, A. Chey. in Bull. Soe. 
Bot. France, lviii. Mém. viii. 207, with var. floribunda. 
Upper Guinea. Province of Gurma, Chevalier, 24335, 24468, 24528. 
Nile Land. Niamniam: Nabambisso River, Schweinfurth, 3775 ! 
Mozamb. Distr. German East Africa: Usagara ; Mpwapwa, Last! British 
Central Africa : Nyasaland ; Uvera, Kenyon, 39! Shire Highlands, Buchanan, 
190! Manganja Hills, Waller! Namasi River, Zomba, Cameron, 72 ! 
Var. minor, Rendle. Smaller slender-stemmed plants 4-6 in. high with 
elliptic to narrowly ovate leaves, generally about 2 in. long, and smaller 
inflorescences 2-5 lin. in diam.—D. unyike, Engl. & Warb. in Engl. Jahrb. 
xxx. 291; R. E. Fries, Arkiv. f. Bot. xiii., no. 1,17, +t. 1, fig. 4, and in Wiss. 
Ergebn. Schwed. Rhodes.-Kongo-Exped. 1911-12, i. 13 (under D. Wallert). 
North Central. French Congo: River Bamingui, Chevalier, 1991! Trena, 
on the River Gribingui, Chevalier, 1959 ! 
Mozamb. Distr. German East Africa: Unyika, near Piseki, 4600 ft., 
Goetze, 1422. Portuguese East Africa: near Lake Nyasa, Johnson, 495! 
Rhodesia : Kalambo, Fries, 1333. 
I have not seen specimens of D. gourmensis, Chev., but except for the slightly 
smaller receptacle the description agrees with that of D. Walleri. 
86. D. cuspidata, Hochst. in Flora, 1844, 103 (name only); 4. 
Rich. Tent. Fl. Abyss. ii. 272. Rhizome with thick tubercle-like 
joints from which the aerial stems spring. Stems herbaceous, erect, 
