624 FLORA OF SOUTH AMERICA. 
same number and arrangement is observable in the minute … 
abortive stamens in the female flowers of some Rwprechtie. 
The additional genus, Symmeria, here proposed, with poly- 
androus male flowers, is a singular anomaly amongst Polygo- 
nacee. 
The near relationship of Brunnichia and Antigonon are 
more fully referred to in the Botany of the Voyage of the 
Sulphur, p. 47. 
847. Polygonum acuminatum, Humb. et Kunth. Nov. Gen. 
et Sp. 2, p. 178, var. fere glabrum, ciliis vaginarum paucis.— — 
In the water along the upper Essequibo, Schomburgk, Ist — 
Coll. n. 370. ; ee 
848. Coccoloba grandis, sp. n., glaberrima, foliis amplis- — 
simis obovato-orbicularibus obtusissimis basi vix emarginatis . 
subbullatis venis supra impressis, panicule ramis elongatis 
gracilibus, bracteis minutis, pedicellis perigonio brevioribus, 
perigonii tubo lobis multo breviore, bacca lobos perigonii = 
zequante.—Arbor 30-pedalis, cortice sulcato. Ramuli crassi, 
concavi. Vagine ample, laxe, striate, 1-2 poll. longe. 
Folia majora sesquipedalia, ultra pedem lata, apice nunc . 
breviter et obtuse acuminata, nunc obtusissima, infra medium — 
angustata, basi obtuse v. leviter cordata, glabra, levia at 
leviter bullata, costa media venisque majoribus primariis — 
v. transversis subtus prominentibus, supra leviter impressis, 
rete venularum parum conspicua. Panicula pedalis, termi- 
nalis. Flores parvi, secus ramos fasciculati. Pedicelli 4 lin. 
longi. Perigonium 1 lin. longum, laciniis orbiculatis car- 
nosulis. Styli apice capitato-stigmatosi, papilloso-hispidi. 
Bacca ovoidea, 3-4 lin. diametro, tubo perigonii | 
ultra medium baccæ attingente, lobis appressis. 
vix partem adheruntem superans, albumine lobato sub- 
ruminato.—On the Rio Branco, Schomburgk, n. 825. p 
849. C. pubescens, Linn. Spec. p. 323.—A tree of about 30 
feet, not differing, as far as the specimens show, from the. 
West Indian form of this species.—On the upper Rupu- 
noony, Schomburgk. d 
849. C. excelsa, sp. n., scandens, foliis ovatis breviter 
