56 PROCEEDINGS OF THE AMERICAN ACADEMY. 
Following Engler’s treatment of Clusia in. Flora Brasiliensis, it is ex- 
cluded from all the sections of the genus except § Huclusia by the 
character of the receptacle. From subsections Oxystemon and Chlamy- 
doclusia of § Euclusia it is excluded by the muticous connective, and 
from Cochlanthera, the sole remaining subsection, by the four petals 
and very numerous stamens. 
Rinorea deflexiflora Bartlett, n. sp., fruticosa 2.5 m. alta dichotome 
ramosa glabra novellis inflorescentiisque puberulis exceptis ; ramis gra- 
cilibus juventate brunneolis aetate albobrunneolis glabris; lenticellis 
numerosis albis; internodiis superioribus ca. 11 cm. longis; nodis 
modice incrassatis in gemmam floriferem terminantibus; foliis oppositis 
cuneato-ovatis 4-12 cm. latis 8-24 cm. longis remote serratis caudato- 
acuminatis basi angustatis subcordatis supra atroviridibus subtus palli- 
dioribus ; petiolis 2-4 mm. longis ; stipulis subulato-lanceolatis 7 mm. 
longis ; inflorescentiis ubique puberulis inter ramos dichotomiarum 
terminalibus simplicibus 6 em. longis ; floribus ca. 15 longipedicellatis 
nutantibus bracteatis; pedicellis gracilibus 6 mm. longis deflexis; — o 
bracteis 3, una pedicellum subtendente, duabus infra pedicelli mediam 
suboppositis ; sepalis 5 aequalibus acutis extus puberulis margine cill- 
atis 2 mm. longis; petalis 5 aequalibus oblongis 5 mm. longis haud 
unguiculatis apice valde revolutis ; staminibus 5 glabris 3.5 mm. longis 
basi haud connatis; filamentis 1.3 mm. longis, anticis ad basin in dorso 
glandulae oblongae 0.8 mm. longae adnatis ; connectivis in squamam 
ovatam lacero-ciliatam antherae loculis dimidio longiorem productis; 
stylo glabro stamina superante ; ovario dense piloso. — Livingston, De- 
partment of Izabal, Guatemala, February 18, 1905, C. C. Deam, no0- 
61 (type, in hb. Gray). Four species of Rinorea or Alsodeia are now 
definitely known from north of Panama. One of them, the Mexican 
plant described by Watson as Alsodeia parvifolia, is of very doubtful 
generic affinity. The other old species are Rinorea silvatica (Seem.) 
O. K. and Rinorea guatemalensis (Wats.) Bartlett, n. comb. (A Isodera 
guatemalensis Wats., Proc. Am. Acad. xxi. 458). Points which distm- 
guish #. deflexiflora from the former are that in AR. silvatica the 
spikes are nodding, the flowers are nearly sessile, and the sepals are 
almost as long as the petals. In R. guatemalensis the leaves are 
broadest at the middle and are acute at the base, as contrasted with 
the more cuneate, subcordate leaves of R. deflexiflora. ; 
Hybanthus cymosus Bartlett, n. sp., fruticosus 3 m. altus ; rams 
gracilibus alato-angulatis glabratis supra straminellis subtus viridibus , 
internodiis foliis brevioribus ; foliis alternis ovatis 2-4 cm. latis 4.5-8 
em. longis serrato-crenatis glabratis basi acutis subsessilibus, aye 
rotundato-obtusis ; stipulis lineari-subulatis usque ad 2 mm. longis 5 
