70 cxxiiic. HORACES (Rendle). [Dorstenia. 



Leaves thinly succulent, broadly elliptic, obtuse, cuneately narrowed 

 at the base, margin irregularly broadly and obtusely dentate, up 

 to IJ in. long, f in. wide, minutely and densely puberulous on each 

 surface ; the thick midrib and upwardly curving lateral nerves 

 (4-6 on each side) very prominent beneath ; petiole about J in. 

 long. Stipules slender, subulate, grey-puberulous. Inflorescences 

 solitary ; stalk as long as the petiole ; receptacle quadrangular or 

 triangular, 2J lin. in diam., with a margin J lin. broad, a linear 

 bract 1 lin. long from each angle and a shorter bract (barely J lin. 

 long) from the middle of each side. Male flowers 1-3-androus ; 

 perianth very short, 3-4-lobed ; female distributed throughout the 

 receptacle ; ovary ovoid ; style slender ; stigma capitate. Fruit 

 laterally compressed, lenticular ; endocarp thinly crustaceous, 

 warty. 



Mozamb. Distr. German East Africa : Usambara ; Mbalu, 4300 to 5000 ft., 

 Engkr, 1512. 



89. D. Preussii, Schweinf. ex Engl, in Engl Jahrb. xx. 143. 

 A small plant 4-6 in. high ; stem slender, erect from a horizontal 

 rhizome, leafy at the apex, pubescent as are the petioles. Leaves 

 ovate or elliptic, apex subobtuse, base acute or obtuse; margin 

 undulate, f-lj in. long, 5-10 lin. wide, sparsely hairy ; petiole 1-1 J 

 lin. long. Stipules minute, deciduous. Inflorescence solitary in the 

 axils of a few of the upper leaves ; stalk very slender, f in. long ; 

 receptacle trilobed, scarcely 5 lin. broad, margin denticulate, each 

 lobe passing into a linear bract-arm 2J-6 lin. long. Male flowers 

 1-3-androus ; female few in the middle of the receptacle ; style 

 simple. Endocarp pale green, subglobose, keeled on the back and 

 with tuberculate sides, J lin. in diam. — Engl. Monogr. Morac. Afr. 

 21,t. viii., fig. D. 



Upper Guinea. Sierra Leone : Sugar Loaf, Prcuss. 



Var. latedentata, Engl, in Engl. Jahrb. li. 432. Leaves ovate, shortly 

 acuminate, l|-3^ in. long, 1 to nearly 2 in. broad, margin broadly dentate ; 

 petiole ^-| in. long. Slender arms of receptacle f-lj in. long. 



Upper Guinea. Cameroons ; Bipinde, Zenker, 4598 ! 



90. D. barnimiana, Schweinf. PI. Nilot. 36, t. 12. Acaulescent, 

 leaves and peduncles springing from a depressed globose tuber, 

 lJ-2 in. in diam., and about 1 in. thick, bearing on its surface 

 numerous fibrous roots. Leaves long-petioled, somewhat fleshy, 

 the earlier ones shortly cordate, the later cordate-ovate, blunt, 

 with margin undulate or obtusely dentate, sometimes denticulate 

 in the early leaves, 2-3 in. long, 2-2J in. wide, puberulous when 

 young, ultimately glabrous, palmately nerved, generally with a 

 sharper median and a pair of lateral branching nerves springing 

 from the base ; ultimate leaf sometimes 3-sect, the lateral segments 



