WESTERN TROPICAL AMERICA. 163 
Substriati, in parte inferiore ramis paucis strictis instructi. Folia rarissima, minima vel vix semipollicaria, 
floralia ad apices ramulorum per 3-4 approximata, 6-9 lin. longa, 1-2 lin. lata, utrinque acuta, integerrima, 
colorata. Involucra subsessilia, linea paullo longiora. 
: There being but a single perfect involucrum in the several specimens of this 
curious plant, I have refrained from cutting it up to examine the internal structure, 
having seen enough to have no doubt of its genus. 
780. Evpnorsia (Exstipulatee, Verticillate, Fruticosee, Cymose) colletioides, sp. n., ramis arti- 
culatis glabris, foliis ternatim verticillatis oppositisve petiolatis ellipticis obtusis basi angustatis 
subtus puberulis glaucis, cymis terminalibus sessilibus densis, bracteis parvis subulatis, involucri 
pubescentis lobis exterioribus orbiculatis crenulatis tubo subbrevioribus.—Acapulco. 
Rami rigidi, teretes, virides, substriati, ad nodos tumidi et facile (preesertim juniores) in articulos 
secedentes, internodiis 3-6-pollicaribus, ramulis sepius ternatim verticillatis. Folia 1-1} poll. longa, 5-7 lin. 
lata, petiolo 3-lincari ; ultima minora angustiora ; omnia membranacea, opaca, impunctata, tenuiter penninervia, 
costa media subtus prominente. Cyma inter folia suprema sessilis, dichotoma, polycephala, foliis tamen brevior. 
Bractes ad dichotomias opposite, quam involucra multo breviores. Involucra brevissime pedicellata, turbinato- 
campanulata, linea paullo longiora, pube canescentia; lobi 5 exteriores lineam lati, colorati, crassiusculi, 
glandulis baseos majusculis orbiculatis duplicatis; lobi interiores inflexee, membranaceee, orbiculato-cuneate, 
fimbriatee, Bracteolw setacese, pilosulee. Flores masculi diantheri, numerosi. Ovarium glabrum. Stylus 
usque ad basin fissus, lobis bipartitis. Capsula junior exserta, levis, glabra, maturam non vidi. 
781. Evesorsta (Exstipulate, Alternifolia, Fruticosee, Umbellate) Sinclairiana, sp. n., glabra, 
foliis amplis obovali-oblongis acutis basi longe angustatis, umbella sessili (2-3-fida?) ramis elongatis 
dichotomis, bracteis ovato-orbiculatis foliaceis, involucri campanulati sessilis lobis 4 exterioribus 
orbiculatis crassis integerrimis.—Island of Gorgona. 
Rami crassiusculi. Folia usque ad pedalia (vel longiora?), 3-4 poll. lata, breviter et acute acuminata, 
costa media subtus prominente, venis primariis obscuris tenuibus ad angulum fere rectum a costa divergentibus. 
Petioli 1-14-pollicares, basi nodoso-incrassati. Umbella supra folium supremum sessilis, folis brevior ; rami 
primarii 2 (vel ex cicatricibus interdum 3), supra medium ter quaterve bifidi, ramis ultimis brevissimis. 
Bracteee 8-10 lin. longe, paullo angustiores, obtuse vel mucronulate, basi subcordate. Involucra i 
3 lin. longa, lobis exterioribus patentibus glanduliformibus, interioribus erecto-inflexis membranaceis orbioulatis 
leviter fimbriatis. Bracteole glabree, in laminas membranaceas apice laceras coalitee. Flores masculi diantheri. 
Ovarium glabrum. Stylus vix ad medium trifidus, lobis semibifidis. 
782. Datecuampta sidefolia, Humb. et Kunth, Nov. Gen. et Sp. 2. p. 100. —D. hibiscoides, 
Hook. et Arn. Bot. Beech. p. 443. non Humb. et Kunth.—Folia seepius ultra medium 3-5-fida, sed 
nunquam ad basin partita.—Realejo, Panama, and other parts of Central America. 
783. Hirromane Mancenilla, Linn.—Culebra, Atacames. 
784, AcALYPHA obovata, sp. n., (Plate LIT.) arborescens, ramulis | subteretibus glabris, foliis 
obovatis vel obovato-oblongis breviter acuminatis subserratis basi longe angustats glabris panctato- 
scabriusculis, spicis sexu distinctis axillaribus folio brevioribus pubescentibus, foemineis gracilibus 
interruptis, involucris flore brevioribus.—Atacames. 
Rami lignosi, cortice cinereo ; ramuli leeves, juniores vix obtuse angulati. Stipule lineari-lanceolate, 
seepe falcatee, 3-4 lin, longe, rigidee. Petioli stipulos vulgo superantes. Folia majora 6-8 poll. longa, supra 
