FLORA OF SOUTH AMERICA. 373 
rotundata, supra demum nitida; subtus in sicco ferru- 
gineo-colorata, subglauca, tactu molliuscula et glabra. Pe- 
tiolus 3 lin., v. in ramulis vetustioribus 5-6 lin. longus, 
ramenta stipulis zquilonga, juniora basi arista dorsali mox 
decidua onusta. Flores in glomerulis sepius plus quam 12. 
Pedicellus vix lineam longus. Calycis lacinie ovate, acu- 
tiuseule. Petala oblonga, obtusa, calyce subduplo longiora. 
Styli graciles. ` Fructus non vidi.—Barcellos on the Rio 
Negro, Sehomburgk, n. 1027. 
TRIGONIACES. 
770. Trigonia villosa, Aubl. Pl. Guian. 1, p. 387, t. 149, var. 
angustifolia, Capsule sesquipollicares.—On the Essequibo, 
Schomburgk, n. 63 in the earlier sets, and 54 in others. 
771. T. macrocarpa (sp. n.) ramulis dense tomentosis, 
foliis subsessilibus ovato-rhombeis obtusis mucronatis supra 
pubescentibus viridibus subtus albo-tomentosis, floribus se- 
cus ramos panicule racemosis.—Frutex elatus, habitu et 
inflorescentia T. villose, sed folia latiora, flores majores den- 
siores, petioli stipulis breviores, capsule nondum mature 
jam tripollicares.— On the Essequibo, Schomburgk, n. 54 in 
the earlier sets. E 
772. T. subcymosa (sp. n.), foliis breviter petiolatis ovali- 
ellipticis obtusis vix mucronatis supra glabris hirtellisve 
nitidis subtus albo-tomentosis, ramis panicula subdichotome 
cymosis.—Frutex elatus, ramosus, ramis apice tomentosis 
demum glabratis. Folia 14-2-pollicaria, Flores quam in 
T. villosa dimidio minores. Petala lateralia et inferiora 
angustiora.—On the Essequibo, Mt, s m. 56 in the 
£arlier sets, 63 in others. 
HUMIRIACEE. 
773. Humirium obovatum (sp. n.), ramulis hirsutis, foliis 
subsessilibus late obovatis obtusissimis retusisve supra 
nitidis subtus rufis piloso-hirtis, petalis dorso pubescentibus, 
—Ramuli teretes, hirsutie molli patente. Folia pleraque 
3 poll. longa, supra medium 2 poll. lata, basi cuneata, sessilia 
VOL. II. 2D 
