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 § Eudusia by the 

 character of the receptacle. From subsections Oxystemon and Chlamy- 

 doclusia of § Eudusia 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 terminantibas; 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 cm. longis; floribus ca. 15 longipedicellatis 

 nutantibus bracteatis ; pedicellis gracilibus 6 mm. longis dellexis ; 

 bracteis 3, una pedicellum subtendente, duabus infra pedicelli mediam 

 suboppositis ; sepalis 5 aequalibus acutis extus puberulis margine cili- 

 atis 2 mm. longis ; petalis 5 aequalibus oblongis 5 mm. longis baud 

 unguiculatis apice valde revolutis; staminibus 5 glabris 3.5 mm. longis 

 basi baud 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, no. 

 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 Pcinorea silcatlca (Seem.) 

 0. K. and Rinorea guateraalensis (Wats.) Bartlett, n. comb. {Alsodeia 

 guatemalensis Wats., Proc Am. Acad. xxi. 458). Points which distin- 

 guish R. deflexiflora from the former are that in R. 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 ; ramis 

 gracilibus alato-angulatis glabratis supra straminellis subtus viridibus ; 

 internodiis foliis brevioribus ; foliis alternis ovatis 2-4 cm. latis 4.5-8 

 cm. longis serrato-crenatis glabratis basi acutis subsessilibus, apice 

 rotundato-obtusis ; stipulis liueari-subulatis usque ad 2 mm. longis \ 



