Oitrullus.] lxiv. cucuRBiTACEiE (hooker). 549 



the lobes pinnatifid or sinuate-lobulate, scabrid on both surfaces. 

 Male fl. : \ in. diameter. Petals broad. Female fl. : Ovary villous. 

 Fruit globose, variegated green and yellow, as large as an orange j 

 pulp dry, intensely bitter. Seeds small, \-\ in., lenticular, smooth. 



Nile Land. Nubia, Bromfield ! Hartmann! Upper Egypt, Schweinfurth ! 

 A common Indian plant, also found in Spain and Egypt, Arabia, and the Cape de 

 Verde islands. 



2. C. vulgaris, Schrad. ; Naud. I.e. 100. Annual. Stem glabrous 

 or woolly. Leaves and flowers much as in C. Colocyntkis, but the 

 former more membranous, greener, not scabrid, glabrous or slightly 

 hairy. Fruit variable in size from that of an apple to a man's head, 

 and in colouring green or striped or marbled, bitter or sweet. Seeds 

 variable in form and colour. — C. amarus, Schrad. in Linnaea, xii. 412. 



Upper Guinea. Niger river, in cultivated ground at Nupe (fruit intensely bitter). 

 Barter ! Gambia, Ingram ! 



Nile Land. Sennaar, &c, Hartmann. 



Lower Guinea. Angola, wild, near Mossamedes and Huilla (fruit bitter). 



Mozamb. Distr. Above Lupata (cultivated), Dr. Kirk! 



3. C. Naudinianus, (Cucumis Naudinianus, in part) Sonder in Fl. Cap. 

 ii. 496. Root perennial (Sonder). Stem trailing, scabrid and pubes- 

 cent. Leaves as in C. Colocynthis. Tendrils reduced to spines. Fruit 

 unknown. 



South Central. T. Baines! 



A curious form, of which I have seen male flowers only. South African specimens 

 of it occur mixed with those of Cucumis dissectifolius, Naud. in Herb. Hook. Sonder's 

 C. Naudinianus consists of flowering specimens of this and fruiting of C. dissectifolius, 

 Naud. ; these two plants being so similar that the flowers (themselves black and ob- 

 scure) alone distinguish them. It is probably a desert form of C. Colocynthis or C. 

 vulgaris. 



19. DIMORPHOCHLAMYS, Hook. f. • Benth. et Hook. f. 

 Gen. Plant, i. 827- 



Dicecious. Flowers very dissimilar. Male fl. : Fascicled ; pedicels 

 broadly winged. Calyx-tube very short ; lobes 5, broad. Corolla fi- 

 partite, segments linear-oblong, obtuse. Filaments 3, free ; anthers 

 connate, one 1-celled, two 2-celled, cells conduplicate. Rudiment of 

 ovary 0. Female fl. : Solitary ? Peduncles not winged. Calyx-limb 

 produced above the ovary into a slender stipes ; segments 5, linear, 

 spreading, persistent and reflexed over the fruit. Staminodes 0. Ovary 

 ovoid, narrowed at the apex ; style columnar j stigmas 3, large, pel- 

 tate, 2-lobed ; ovules numerous, on 3 placentas. Fruit globose ; bark 

 hard, granulate, crowned with the radiating appressed calyx-lobes. 

 Seeds many, large, oblong, curved, compressed, 3-fid at the apex; 

 testa black, crustaceous, wrinkled. — A climbing shrub. Leaves short- 

 petioled, ovate-cordate, acuminate, toothed, coriaceous, scabrid. Ten- 

 drils simple or 2-fid. Flowers rather large ; peduncle with many 

 coriaceous imbricate bracts at the apex. Fruit as large as an orange. 



