XL. AMPELIDEJE. 161 



elevated parts of the Sobato de Quilombo Quiacatubia, but sporadic 

 only ; fl. and fr. Feb. 1855. No. 1481. 



14. C. debilis Planch. Monogr. Ampelid. p. 569. 



Vitis debilis Baker in Oliv. Fl. Trop. Afr. i. p. 403. V. gracilis 

 Baker, I.e., p. iQi pro parte ; non Guill. & Perr. 



Golungo Alto. — Among tall bushes at the borders of the primitive 

 forests of Sobato de Quilombo-Quiacatubia, on the slopes facing the 

 river Zenza ; fl. and fr. Feb. 1855. No. 1478. 



Island op St. Thomas. — In the damp thickets of Monte Oaffe ; 

 young fr. end of Dec. 1860. No. 1503. 



15. C. stenoloba Planch. Monogr. Ampelid. p. 578. 



Vitis stenoloba Welw. ex Baker in Oliv. Fl. Trop. Afr. i. p. 408. 



Huilla. — A herb, 1 to 2J ft. high ; root thick ; stems several, erect 

 or somewhat oblique, straight, shaggy with very soft hairs mixed with 

 red capitate glands, at length more or less glabrate, always reddish, 

 rather rigid, longitudinally furrowed, swelling at the nodes ; lower 

 internodes 5 in. long, the upper ones gradually shorter, the uppermost 

 ones about 1 in. long ; leaflets subfalcate ; transverse veinlets purple ; 

 petioles short or ranging up 1 in. or the upper ones obsolete ; stipules 

 scarious, reddening, ovate lanceolate or linear, subulate-acuminate, 

 spreading, glabrous on the inner surface, somewhat glandular-pubescent 

 on the outer surface. In sandy places in open woods between the 

 large lake of Ivantala and Quilengues, rather rare ; with few fl. and in 

 ripe fr. Feb. 1860. No. 1449. 



The following No., without either flower or fruit, and badly 

 represented in the British Museum set, appears to belong here : — 



Huilla. — Stem ascending, branched from the base, deeply striate ; 

 stipules subcordate-ovate, very broad. In very shady woods composed 

 of Leguminosse, near the lake of Ivantala, Feb. 1860. No. 1451. 



16. C. jatrophoides Planch. Monogr. Ampelid. p. 579. 



Vitis jatrophoides Welw. ex Baker in 01iv.,Fl. Trop. Afr. i. p. 400. 



Ambaca. — A very beautiful succulent herb, 1 to 3 ft. high, in 

 habit not badly simulating a Jatropha ; root thick, fleshy, perennial, 

 surrounded with fibres ; stems cylindrical, erect, simple, bright rose- 

 purple, tinged with a glaucous or glassy translucence, without tendrils, 

 nodose at the joints ; sap watery ;" leaves alternate, fleshy-succulent, 

 rigid, trifoliolate, bistipulate at the base of the petiole, subglaucous- 

 green ; veinlets crowded, only coming into view after drying ; 

 inflorescence repeatedly dichotomous, but the primary division of the 

 peduncle appears to be typically quinary, and usually 4 or only 3 

 corymb-bearing branches are found together with an intermediate 

 sterile long-pedicelled solitary flower ; peduncles 5 to 9 in. long ; 

 bracteoles small, lanceolate or ovate-lanceolate, sub-hyaline, two 

 together at the base of the pedicels, occasionally at the middle of the 

 pedicels ; flowers bright orange-red, small, handsome ; calyx shortly 

 cup-shaped, somewhat or scarcely 4-toothed, persistent ; petals 4, equal, 

 concave, at the hooded-arched apex cohering in a lid, free at the time 

 of flowering and then falling, inserted outside on the thick swelled 

 4-lobed hypogynous disk ; stamens 4, inserted at the outer part of the 

 base of the disk, opposite the petals, alternating with the lobes of the 

 disk ; filaments flattened, free, scarcely shorter than the petals ; anthers 

 2-celled, dehiscing longitudinally, falling with the petals ; ovary 

 surrounded at the base by the 4-lobed disk, at first 2-celled ; ovules 2 



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