FLORA OF SOUTH AMERICA. 353 



p. 138, t. 53.— Ipomaa glabra, Chois. in DC. Prod. 9, p. 362.— 

 Ovarium complete quadriloculare. Sepala per fructus matura- 

 tionem aucta, subscariosa, stellato-patentia, obtusa v. acutius- 

 cula, interiora interdum fere pollicaria. Capsula glaberrima, 

 depressa, quadrilocularis, styli basi indurato coronata. Semina 

 nigra, minute puberula. — British Guiana, Schomburgk ; also 

 Surinam, Hostmann, n. 45 ; Brazil, Sello, &c. 



887. B. cissoides, Chois. in DC. Prod. 9, p. 339.— British 

 Guiana, Schomburgk, 1st Coll. n. 242 and 736, 2nd Coll. 

 n. 16 and 98 (1.9). 



888. B. sp. n. affinis B. guinguefolia, glabra, foliis pectinatim 

 profunde 7-lobis, lobis linearibus mucronatis, sepalis oblongis 

 aristatis. Corolla ignota. Capsula quadrilocularis. — Evidently 

 a very distinct species, but the single specimen from Schom- 

 ourgk's first collection is not sufficient to characterize it 

 satisfactorily. 



889. Pharbitis Nil, Chois. in DC. Prod. 9, p. 343.— On 

 the falls of the Rio Branco, Schomburgk. Freneh Guiana, 

 Leprieur, Herb. Par. n. 135. 



890. Ipomaea aturensis, Don. — Chois. in DC. Prod. 9, 

 p. 367. — l.juncea, Chois. in DC. Prod. 9, p. 355. I cannot 

 see any character by which these two plants are to be distin- 

 guished. It is true that Choisy places the I. aturensis in his 

 section Strophipomcea, but it is evident from Kunth's descrip- 

 tion, that the stem is not voluble.— Schomburgk's plant 

 appears to be sometimes erect, sometimes spreading. — Gra- 

 velly savannahs, on the Rupunoony, Schomburgk, 1st Coll. 

 n. 625 ; also in the Brazilian province of Goyaz, Gardner, 

 n. 3354. 



891. I. Schomburgkii, Chois. in DC. Prod. 9, p. 354.— 

 British Guiana, Schomburgk, n. 692. 



8 92. I. guianensis, Chois. in DC. Prod. 9, p. 366.— 

 Flowers white.— British Guiana, Schomburgk, 1st Coll. 

 n - 708, 2nd Coll. n. 101 (35); French Guiana, Leprieur, 

 Herb. Par. n. 13.3. 



893. I. tamnifolia, Linn.— Chois. in DC. Prod. 9, p. 365. 



VOL. V. D D 



