126 MR. BENTHAM ON TWO NEW GENERA OF BRAZILIAN PLANTS. : 
portions of branch bearing them are in my specimens detached from those which have the 
leaves. But besides that Mr. Spruce is far too careful a collector for me to suspect any 
accidental mismatching, the bark and wood of the flowering portions perfectly correspond 
with those of the leafy ones. 
BRACHYNEMA. 
Char. GEN.—Calyz cupuliformis, subinteger, post anthesin accrescens. Corolla infundibularis, tubo 
elongato, laciniis 5 crassis lanceolatis patentibus, æstivatione valvato-subcontorta. Stamina 5, brevia, 
ima basi corollæ v. cum corolla toro inserta, laciniis corollæ alternantia; filamento brevi dilatato ; 
anthera extrorsa, biloculari, connectivo apiculata, loculis longitudinaliter dehiscentibus. ^ Ovarium 
sessile, 5-loculare. Stigma subsessile, 5-lobulatum. Ovula in loculis solitaria, pendula. Fructus 
(drupaceus ?), pericarpio tenui, endocarpio crustaceo intus fibroso, unilocularis, monospermus. Semen 
lata basi affixum, sulcato-striatum, testa tenui arcte adnata. Albumen cartilagineum. Embryo 
ignotus (v. embryo crasso-carnosus exalbuminosus indivisus ?); ; 
Species unica B. RAMIFLORUM. Arbor, teste R. Spruce, gracilis, 30-pedalis. Rami subteretes, ligno duro, 
cortice scabriusculo. Folia sparsa, exstipulata, inzequalia, ovato-oblonga, anguste acuminata, integra 
v. obsolete sinuata, basi cuneata, membranacea, glabra, utrinque viridia, penninervia et transverse 
venosa, costa nervisque subtus prominentibus. Petioli majorum 4-6-pollicares, apice leviter inflexi 
et quasi articulati, minorum vix pollicares. Lamina majorum fere pedalis, 5 poll. lata, minorum vix 
4-pollicaris. Nervi primarii a costa utrinque 6-8, versus marginem arcuate et irregulariter con- 
fluentes, hinc inde juxta marginem ramulum emittentes in margine ipso glandula parva terminantem ; 
duo infimi oppositi, margini paralleli. Flores in ramos annotinos v. vetustiores ex axillis foliorum 
delapsorum nascentes, fasciculis subcymosis, 5-15-floris, sessilibus, ebracteatis. Pedicelli cras- 
siusculi, vix lineam longi. Calyx per anthesin cupuliformis, 11 lin. latus. Corolle tubus 7-8 lin. 
. longus, extus zonis transversis intensius coloratis variegatus ; limbi laciniæ crasso-triquetræ, patentes 
v. recurve, intus linea longitudinali pilorum intra tubum plus minus decurrente notatae. Staminum 
filamenta antheris breviora; pollen e granulis minutis globosis compositum. Ovarium crassum, 
subglobosum, vertice depresso-umbilicatum. Stigma pulviniforme, lobulis brevissimis subemar- 
ginatis. Fructus in specimine depresso-globosus, 6-8 lin. diametro. i 
Hab. In Brasilia boreali ad cataractas fluminis Aripecurù, in fl. Amazonum juxta Obidos fluentis 
(R. Spruce). ; : 
2. PHOXANTHUS HETEROPHYLLUS. (Tas. XXIL., XXIV.) 
Of the other genus, for which I propose the name of Phoxanthus, in allusion to the 
long pointed petals giving a tapering conical form to the bud, Mr. Spruce’s specimens 
afford ample materials for a full illustration, In the first hasty determination for the 
purposes of distribution, struck by the linear petals with stamens opposite to their dilated 
basc, and some ‚other points of resemblance: with Aublet’s figure of Mayepea, I had 
thought it probably a second species of that genus (which had already been referred to 
Linociera), and I accordingly labelled it Linociera (Mayepea) heterophylla. But a closer 
examination showed that I was in error. In the first place, Aublet's figure is incorrect. 
His specimen in the British Museum has opposite, not alternate, leaves, and from Dr. 
Solander's notes it appears that there are two, not four, stamens, and that it is altogether 
à true Limociera. If therefore Aublet’s dissections, especially fig. 4 of his Plate (t. 31), 
represent what he really saw, he must have had some flowers of Phoxanthus mixed up 
with those of his Mayepea, and have confounded the two plants. Further, I find that 
Mr. asi: plant has not generally four petals, as was accidentally the case in a flower I 
