Dorstenia.] cxxiiic. morace^e (Rendle). 63 



and young Iciives ; stalk ^-J in. long, stout, becoming thicker 

 above, shortly tomentose as is the convex back of the receptacle ; 

 disc flat, (jrbicular, 6-9 lin. in diam. ; bract-arms sprin^/ing from 

 beneath a narrow closely crenate margin, spreading, 2-5, subequal, 

 linear-spathulate, obtuse, shortly tomentose, 3-5 lin. long, J-1 lin. 

 broad towards the apex. Male flowers 2-3-androus, wit h a correspond- 

 ing number of broad perianth-lobes ; female numerous ; style ^ lin. 

 long, minutely 2-fid at the apex. Fruit subglobose, endocarp verru- 

 culose.— Th. & Hel. Durand, Syll. Fl. Congol. 502. D. Rosenii, 

 R. E. Fries in Arkiv. Bot. xiii. no. 1. 14, t. 2, fig. 5, and in Wiss. 

 Ergebn. Schwed. Rhodes.-Kongo-Exped. 1911-12, i. 13. 



South Central. Belgian Congo : Upper Marungu ; Lake Tanganyika, 

 Debeerst ! 



Mozamb. Distr. Rhodesia : Mukanshi River, between Lakes Bangweolo and 

 Tanganyika, Fries, 1125. 



Var. mtiltibracteata, Rendle. Bract-arms generally 8 in number, often 

 G-81in. long. — D. Rosenii, var. multihracteata, R. E. Fries, 11. cc. 15 and 13. 



Mozamb. Distr. German East Africa : Urundi, 4000-5000 ft., Scott Elliot. 

 8207 ! Rhodesia : Abercorn, Fries, 1125a. 



74. D. benguellensis, Welw. in Trans. Linn. Soc. xxvii. 71. 

 Perennial by means of a fleshy depressed-globose or placentiform 

 tuber 1-1| in. in diam., rich in latex ; surface warty and 

 emitting fibrous roots ; stem solitary, erect, succulent, cylindrical, 

 unbranched or with a few short leafy branchlets, ^-IJ ft. high, covered 

 when young with dense whitish pubescence, bearing short scale- 

 leaves below, leafy above ; internodes f-lj in. long, becoming 

 shorter towards the densely leaved apex. Leaves when fully developed 

 subsessile or very shortly stalked, oblong-lanceolate to elliptic, apex 

 blunt to subacute, more or less tapering to the base, margin shortly 

 toothed, 1-2 J in. long, 4-9 lin. wide, shortly and softly hirtellous, 

 especially on the nerves ; lateral nerves 7-10 on each side, ascending. 

 Stipules linear-lanceolate, generally deciduous, rarely exceeding 

 1 lin. in length. Inflorescences solitary, axillary ; stalk firm, varying 

 in length from 2-G lin., increasing sometimes to 10 lin. in the fruit, 

 like the convex outside of the yellowish-green receptacle glabrescent 

 or sparsely puberulous ; disc orbicular, 3-G lin. in diam., increasing 

 in the fruit, with a narrow shortly toothed margin and bearing 

 from below (outside) the margin a whorl of slender linear bract- 

 arms, varying considerably in number and length in different 

 specimens, from 7-15 in number and from 3-8 (rarely to 10) lin. in 

 length, sometimes slightly dilated at thetip. Male flowers 2-andr()Us ; 

 perianth with two broadly truncate opposite lobes ; female scattered 

 over the disc ; style shortly 2-fid. Pericarp after expulsion of 

 the endocarp elongating and forming a stalked 2-valved fleshy 

 structure projecting above the male flowers ; endocarp grey-white, 

 globose-triquetrous, finely warted, J— J lin. in diam.-- Bureau in 



