SCHOMBURGK'S GUIANA PLANTS. 123 



Sterculiace^. 



651. Quararibea Guianensis, Auhl. PL Gui. v. \\. p. 692. 

 t. 278. — Banks of rivers, British Guiana; Schomhurgk, n. 211. 

 — The leaves are rather larger and broader than in Martin's 

 Guiana specimens, which agree precisely with Aublet's figure 

 and description ; but they both are probably but one species. 



652. Helicteres^^/a^^</«<^/b/^a, Humb. etKunth. — DC. Prodr. 

 V. \. p. 476 — British Guiana; Schombtirgk, n. 198; Cuming, 

 n, 1299. — This answers very well to Kunth's description ; but 

 it is perhaps not really distinct from H. Bat'tiensis, Jacq., 

 although the petals be spathulate and not linear. Gardner's 

 n. 2058, from Piauhy, is again a slight variety of the same 

 species, with rather broader bracteolse, but differing in foli- 

 age and other points from H. involucrata, Moric. 



653. H. althmfolia. Lorn. Diet. v. iii. p. 88? — Ramuli 

 crassi, uti pedicelli, calyces, fructus et pagina inferior folio- 

 rum tomento denso subfloccoso canescentes. Folia ovato- 

 orbiculata, cordata, 4 — 6 poll, longa, 3 — 5 lata, breviter 

 acuminata v. obtusa, duplicato-dentata, juniora utrinque 

 cano-tomentosa, adulta supra viridia. Pedunculi breves, 

 crassi ; pedicelli brevissimi. Bracteae lineares. Calyces 

 15 — 16 lin. longi, tubulosi, bilabiati, dentibus linearibus. 

 Petala linearia, longe unguiculata. Gynophorum villosum, 

 crassiusculum, per anthesin 2^ poll, longum, fructifer 4 — 5 

 pollicare. Stamina fertilia 10, sterilia interiora 5, lineari- 

 cuneata. Fructus ovato-cylindraceus; dense tomentosus, 

 capsulis apice subrectis, anfractibus multo paucioribus quam 

 in H. Jamaicense. — Dry savannahs, British Guiana ; Schom- 

 burgk, n. 727 ; Trinidad, Lockhart. Petals, according to 

 Schomburgk, of a greenish white. 



Gardner's n. 13, from Rio Janeiro, is H. ovata, Lam.; n. 

 2057, from Piauhy, and n. 2403, from Ceara, are species of 

 Helieteres, both as I believe, undescribed. 



654. Sterculia A-j/'a, Sw. — DC. Prodr. v. i. p. 483. — Bri- 

 tish Guiana ; Schomburgk, n. 297. 



