COLLECTED BY MR. SPRUCE AT PARA. 935 
tomentellis, calyce eglanduloso, staminibus (an constanter?) 8.— 
Cayenne. 
- D. alata, Vog., foliis alternis, petiolo alato, foliolis ovatis oblongisve 
inzequilateris, panicula canescenti-puberula, calyce  glabriusculo 
pellucido-punctato eglanduloso, staminibus 10.— D. pterota, Mart.— 
Provinces of Goyaz, Minas Geraes, and Mattogrosso. 
. D. nudipes, Tulasne, foliis alternis, petiolo aptero applanato, foliolis 
ovato-elliptieis longe acuminatis coriaceis subzequilateris, panicula 
pubescente, calyce extus glabro eglanduloso, staminibus 10.— Parà. 
-.D. reticulata, sp. n., foliis alternis, petiolo aptero applanato, foliolis 
ovatis obtusis emarginatisve subzquilateris coriaceis glaberrimis 
eleganter retieulatis, panieula puberula, bracteolis coloratis calyce 
majoribus, calyce glabriusculo vix punctato, staminibus (an con- 
stanter?) 9.— Foliola circa sex, 2—-23-pollicaria. Panicula laxa. 
Bracteolæ deciduze, fere petaloideze, multo majores quam in ceteris 
speciebus.— Guiana, Rob. Schomburgk, 2nd Coll n. 606, Rich. 
Schomburgk, n. 951. 
. D. crassifolia, sp. n., foliis oppositis, petiolo anguste marginato, 
foliolis ovatis v. ovali-oblongis subaeuminatis crasse coriaceis supra 
glabris subtus canescentibus, panicula canescente, calycibus extus 
puberulis subepunctatis, staminibus 10.—Foliola breviora, latiora, 
erassiora quam in D. applanata, pedicellis longiore. — British 
Guiana, Rob. Schomburgk, from among the single specimens of his 
last journey. 
. D. oppositifolia, Willd., foliis oppositis, petiolo applanato aptero, 
foliolis oblongis vix acuminatis subcoriaceis utrinque glaberrimis, 
panicula canescente, calyce canescenti-puberulo vix punctato, labio 
inferiore tridentato, staminibus 10.—Rio Quitaro, British Mieres 
Schomburgk ; and Cayenne, Aublet. 
. D, applanata, described above. 
. D. oleifera, the Eboe-tree of the Mosquito shore. Of this I have | 
only seen the fruit, and a single flower lent to Sir W. J. Hooker, 
showing that it belonged to a distinct species, with the two calycine 
lobes larger than in any other, and thickly covered with resin- 
ous dots. 
The genus Pterodon of Vogel (Commilobium of my paper in the - 
Vienna Annals) only differs from JDipíeryr in the more petaloid 
nature of the calycine lobes, in the flattened fruit, very thin and almost 
2H2 
