272 PROF. OLIVER ON NEW PLANTS FROM RORAIMA. 



330. Bonnetia RoRAiMiE, Oliv., sp. nov. (Plate XXXVII. B. figs. 9-17) ; foliis coriaceis, 

 parvis, oblanceolatis v. obovato-oblongis, obtusiusculis, apicem versus obscure denticu- 

 latis, eveniis, brevissime crassiuscule petiolatis ; floribus ad apices ranmlorum sessilibus 

 bracteatis ; sepalis late ellipticis, obtusis, breviter apiculatis, ciliolatis ; petalis calyce 

 longioribus cuueato-obovatis, truncatis v. leviter eraarginatis ; filanientis brevibus, 

 basi iu plialangibus 5 coalitis ; antberis obovato-turbinatis, ernargiuatis ; ovario iu 

 stylum crassiusculum apice 3-fidum angustato. 



Summit of Roraima. 



Polia conferta, imbricata, 4-7 lin. longa. Plores §— | poll. diam. 



A very distinct species, of which our material is rather imperfect. 



8. Mahurea existipttlata, Benth. Aroie Creek. 

 288. Ternstrcemiacea ? (inadequate). Path to upper savannah. 



22. Sida linlfolia, Cav. Arapoo R. 

 130. Btrsonima crassifolia, H. B. K., var. ? Near house. 

 136. Tetrapteris ? (no fruit). Near house. 



255. Tetrapteris rhodopteron, Oliv., sp. nov. ; ramulis appresse sericeis ; foliis petio- 

 latis, obovato- v. oblanceolato-ellipticis, breviter apiculatis, basi cuneatis, utrinque 

 tomentello-pubescentibus, supra glabrescentibus; racemis folio brevioribus, sericeis; 

 bracteis brevissimis, ovatis, bracteolis medio pedicelli insertis, obovatis v. late ellip- 

 ticis, bractea majoribus ; calyce 10-glanduloso, sericeo ; samara? alis lateralibus a 

 basi divaricatis, coriaceis, nervosis, glabris, rubescentibus, obtusis, integris v. in- 

 terdum insequaliter dentatis. 



Roraima. 



Polia 2J-3 poll, longa, 1^-1^ poll, lata : petiolus J-J poll, longus. Bracteola? gemi- 

 nate, rb— i poll, longa?. Samara alis longioribus | poll, longis. 



211. Ravenia ruellioides, Oliv., sp. nov. (Plate XXXVIII. A. figs. 1-6) ; ramulis 

 appresse pubescentibus ; foliis unifoliolatis, petiolatis, ovalibus, utrinque attenuatis v. 

 basi obtusis, apice obtusiusculis, nervo medio utrinque cum petiolo appresse pubes- 

 cente ; pedunculis inaxillis superioribus 2-vel 1-floris ; sepalis 2 exterioribus majoribus, 

 ovatis v. oblongo-ovatis ; petalis longe coalitis, tubo corolla? calyce 1-5-plo longiore, 

 leviter curvato ; lobis ovatis lanceolatisve ; antberis 2 fertilibus, basi appendiculatis. 

 Roraima, upper slope. 



Polia 1|-2| poll, longa, 5-12 lin. lata ; nervis subtus obliquis, prominulis ; petiolo 2- 

 3 lin. longo. Plores 1-1^ poll, longi ; corolla sericea. Calyx sepalis exterioribus -5-J 

 poll. longis. Antherse appendicibus brevibus, reflexis, obtusis, obovatis v. truncatis. 



Closely simulating some Acanthacea, with its opposite, simple (unifoliolate) leaves, and 

 long curved corolla-tube, sheathed at the base by the unequal sepals. The reflexed, some- 

 what fleshy appendage at the base of the perfect anthers has not, I believe, been observed 

 in the two other described species of the genus. 



