124 BOTANY OF THE VOYAGE OF THE SULPHUR. 
APOCYNACEX. 
495. Turverta neriifolia, Juss —A. DC. Prod. v. 8. p. 343.— Acapulco; Isle of Taboga, Bay 
of Panama. 
496. Tuevetia plumeriefolia, sp. n., (Plate XLIII.) glaberrima, foliis obovali-vel cuneato- 
oblongis brevissime acuminatis basi angustatis, venis transversalibus coste perpendicularibus 
prominulis, cymis folio brevioribus paucifloris, bracteis sepalisque ovatis acutis tubo corolle plus 
duplo brevioribus.—Gulf of Fonseca. 
Ramuli crassiusculi, teretes, uti tota planta glaberrimi, cicatricibus foliorum delapsorum parvis basi notati. 
Folia alterna vel sparsa, vix semipedalia, sesquipollicem lata, apice rotundata cum acumine brevissimo vel 
_ obsoleto, basi longiuscule angustata in petiolum tenuem 6-8 lin. longum, supra nitidula, subtus pallida; costa 
media subtus valde prominens, vene primariee numerose, parallele, apice in nervum subinarginalem conniventes. 
Gemmule in axillis parvee, squameeformes, ciliato-lacere. Ramuli floriferi (in speciminibus) apice bifurcati, 
cyma in bifureatione dichotoma, 5-6-flora, pedunculo communi angulato 6 lin. longo, pedicellis 6-18 lin, longis. 
Bracteze crassiusculee ad ramificationes et sub pedicellis 2-3 lin. longee, undulate. Calyx 5-partitus, segmentis 
_ovatis 4-5 lin. longis undulatis verruculosis at glabris, basi intus multiglandulosis. Corollee tubus fere pollicaris, 
medio parum attenuatus, apice leviter campanulato-dilatatus, limbi lobi ampli, zstivatione sinistrorsum contorti, 
tubo longiores, extus intusque uti tubus glaberrimi. Squamee ad faucem parvee, villosissimee. Filamenta supra 
medium tubi inserta, brevia, complanata, pilis rigidulis hyalinis reflexo-patentibus densissime hispida. Antheree 
lanceolate, connectivo acuto acuminate, loculis basi obtusis. Nectarium ovario longius, crassum, obtusum, 
apice obtuse 5-lobum, lobis cum calycis segmentis alternantibus. Ovarium bilobum, lobis singulis unilocu- 
laribus, ovulis in loculo binis superpositis. Stylus apice in discum annulatum dilatatus, sub disco lobis 5 parvis 
lanceolatis acutis erectis auctus, stigmate in medio disco conico bilobo. 
Pirate XLII. Fig. 1, Calyx with the calycine glands and nectary ; Fig. 2,* portion of the 
corolla, cut open, showing the stamens ; Fig. 3, stamen, front view; Fig. 4, stamen and scale, side 
view; Fig. 5, section of the ovary; Fig. 6, style; all more or less magnified. 
_ 497. Vauuesta dichotoma, Ruiz. et Pav.—A. DC. Prod. v. 8. p- 349.—Punta Santa Elena in 
Columbia. . 
The Californian plant referred to above, p- 33, as the V. dichotoma, is the 
V. glabra, Cav., but, as well as the V. chiococcoides, appears to me to be buta 
variety of V. dichotoma, which I have also from South Brazil, and often assumes 
— South America the form described by Cavanilles. The radicle is certainly 
inferior, as described by Kunth. ey 
288. STEMMADENIA glabra, gen. noy., (Plate XLIV.) glaberrima, foliis subsessilibus obovatis 
breviter acuminatis basi obtusis, corolla tubo calyce paullo longiore.—Gulf of Fonseca. 
Cuan, Gen. Calyx 5-partitus, segmentis valde imbricatis, interioribus obovatis, exterioribus 
: ovatis brevioribus bracteis 2 consimilibus minoribus suffultis. Glandule numerosissime, intra 
aly — verticillate. Corolla ampla, infundibuliformi-campanulata, laciniis sinistrorsum contortiss 
faux plicis 5 longitudinalibus aucta. Stamina tubo inserta; filamenta brevia, crassiuscula ; anther@ 
es The corolla was, by mistake, omitted . 
eee: , to be reversed on the stone, and appears in the plate twisted from left 
to right, instead of from right to left. é = c : 
