schomburgk's gu/ana plants. 229 



492. P. ( Bracteatee) inundata (sp.n.); glabra, foliisovali-ob- 

 longisv.ellipticislonge acuminatisbasi cuneatis, stipulis utrin- 

 que binis subulato-acuminatis acutis petiolo longioribus basi 

 dilatatisbreviterv, ultra medium connatissubdecit]uis,panicu]a 

 pedunculata ovata laxa multiflora, bracteis lineari-oblonfris 



membranaceis corolla glabra parum brevioribus Frutex. 



Folia 3-4-poIIicaria, subcoriacea, venis utrinque proniinenti- 

 bus parallelis arcuatis. Pedunculus folio siibbrevior, iiregu- 

 lariter ramosus, ramis apice cvmiferis. Flores sessiles. 

 Bractese 2-3-lin. longse. Corollae tubus 3-Iin, longus, faux 

 arr.pliata, limbilacinise latiuscula?, tube dimidio fere breviores. 

 — On the banks of the river Essequibo, where they are liable 

 to inundation. — Schomhurgk. n. 21. 



493. P. (Bracteatse) arcuata (sp. n.); glabra, foliis ovallbus 

 V. ovali-oblongis acuminatis basi rotundato-cuneatis, stipulis 

 utrinque binis linearibus acutis petiolo longioribus persisten- 

 tibus, panicula pedunculata ovata laxa multiflora, bracteis 

 lineari-oblongis membranaceis corollae glabrae tubo parum 

 brevioribus. — Very near to the last species of which I at first 

 considered it a mere variety, but the leaves are shorter and 

 more veined, the stipules, which are half-an-inch long as in 

 P. inundata, are, however, free immediately above the short 

 sheath, and do not appear to fall off, and the flowers are larger, 

 the tube of the corolla being about 3 lines long — On the 

 Berbice, Schomhurgk, n. 415. 



494. P. (Bracteatae) bracteata, DC, Prod. iv. 510? On 

 the Rio Negro, Schomhurgk, n. 861. 



495. P. (Bracteatse) nervosa (sp. n.) ; glabra, ramulis 

 compressis, foliis subsessilibus ovali-oblongis acuminatis basi 

 cuneatis submembranaceis supra nitidis, stipulis utrinque 

 l)revissime bidentatis, cyma pedunculata trichotoma densa, 

 bracteis foliaceis oblongis nnicronatis nervosis margine nudis 

 corollas glabras subaequantibus. — P. lupidince affinis sed foliis 

 angustioribus stipulis bracteisque distincta videtur. Corollae 

 albae, majores, laciniis limbi acutissimis tubo sequilongis — 

 Low marshes of the Essequibo, Schomhurgk, n. "26, in the ear- 

 lier sets. — The Cephaelis justicicefolia of Rudge appears to 



