FLORA OF GUIANA. 131 
underneath, as is said of B. Martiniana, and there also appear to 
be some differences in the fruit. 
* 40. B. calocarpa, Mig. Linnea, vol. 18. p. 53. (Surinam, Focke.) 
41. B.? sp. n. British Guiana, Schomb. 2nd Col. n. 1001 (1739). 
Of this I have only two very young panicles without any leaves, 
except the floral ones, which are covered on both sides with soft, 
silvery hairs. It appears to be different from any described Mal- 
pighiacea, but the specimens are too young to determine whether 
it belongs to Banisteria, Heteropterys, or Tetrapterys. 
42. Heteropterys eristata, sp. n., foliis ovatis v. ovali-oblongis 
acuminatis basi obtusis coriaceis lucidis utrinque glabris v. novellis 
subtus adpresse villosis, panicula terminali laxa, pedunculis infra 
apicem minute bibracteolatis, calyce 8-glanduloso, samaris, trans- 
verse cristato-appendiculatis.— British Guiana, Schomb. 1st Col. 
n, 279. 
Frutex alte scandens. Rami glabriusculi lenticellis tuberculati. 
Stipulæ in specimine haud obviæ. Folia 4-5 poll. longa, 14-3 poll. 
lata, reticulato-venosa, petiolo 3—4 lin. longo. Panicula terminalis, 
pube rufa tomentosa; rami racemosim oppositi, inferiores com- 
.positi, cæteri umbellas seu potius racemos in umbellas fere con- 
tractos ferunt tres, quorum terminalis subsessilis, laterales pedun- 
culati. Folia floralia, sub ramis parva, ovato-lanceolata, petiolata. 
Bracteæ parve. Pedunculi infra articulationem 3-4 lin. longi, 
infra apicem bibracteolati, bracteolis minutis appressis, Pedicelli 
pedunculis subæquilongi. Calycis laciniæ rufo-pubescentes, a glan- 
dulis fere omnino tectæ. Petala glabra, rosea, ungue calyce dimidio 
longiore; lamina subintegra, carinato-concava, ungue brevior. 
Stamina glabra; antheræ oblongæ, connectivo tenui. Ovaria 
villosa. Styli crassiusculi, apice truncati intus stigmatosi. Samare 
subglabræ, striato-nervosæ, cristis lateralibus irregulariter lobatis 
1-2 lin. latis; ala fere pollicaris, falcato-oblonga, margine exteriore — 
ultra milia: rectilinea incrassata, interiore curvilinea. 
43. H.? cinerascens, sp. n., foliis elliptico-oblongis breviter et 
obtuse acuminatis basi RTS eglandulosis supra glabris - | 
lucidis subtus cinereo-pubentibus, paniculis axillaribus bewibts 
