ON SOUTH-AMERICAN APOCYNACE. 77 
bilobed at the base, seated in the contraction of the tube below and alternate with 
5 long glands or plicatures of the tube, as in the typical species; disk of 5 connate glands, 
forming a short tube with a crenate margin, round the base of 2 much longer, free, 
oblong, pointed ovaries; style slender, terete; clavuncle thick, deeply 5-grooved, with a 
basal umbraculiform appendage; stigmata short and globose. 
7. STEMMADENIA BELLA, nob.: ramulis teretibus, dichotomis : foliis elliptico-ovatis, sepius conduplicatis, 
imo acutis, apice recurvatim subito acuminatis, submembranaceis, supra profunde viridibus, opacis, 
nervis tenuibus vix prominulis; petiolis brevibus, supra planis: racemis opposite axillaribus, vel in 
dichotomiis ramorum solitariis; pedunculo fere folii longitudine, pene a basi alternifloro ; pedicellis 
validis, medio et sub calyce bracteolatis; sepalis oblongis, obtusis, membranaceis, medio cras- 
sioribus, insequalibus, valde imbricatis, intus squamulis numerosissimis acute lanceolatis crebre 
2—3-seriatis munitis; corolla tubulosa; tubo (parte intra calycem) angustato, superne subcampanu- 
lato; segmentis oblique rotundatis, reflexis, in :estivatione sinistrorsum convolutis; staminibus ad 
contractionem tubi insertis sub lineis 5 pilosis, inclusis; antheris sagittatis; disco annulari, margine 
vix crenulato, ovariis 2 acutis 1 breviore; stylo subbrevi; clavuncula dilatatim oblonga, imo mem- 
brana donata; stigmatibus brevissimis. In Mexico: v. s. in hb. Mus. Brit. Mexico (Brotero 884). 
The axils are thickened and 1-13 in. apart; the leaves are 3-5 in. long, 11-3 in. 
broad, on petioles 3-5 lines long; peduncle 4 in. long, floriferous nearly to the base; 
flowers 1-2 lines apart; pedicels thick, 3—4 lines long; bract 2 lines long; sepals 
5-6 lines long, 2 lines broad; tube of corolla 10 lines long, the contracted basal portion 
4 lines long; segments 6 lines long and broad. 
8. STEMMADENIA BIGNONLEFLORA, nob. : Echites bignonieflora, Schl. in Linn. xxvi. p. 372. In Mexico: 
non vidi. 
A handsome species, bearing all the characters of this genus. It is a branching shrub, 
with somewhat slender branchlets, dilated at the axils, with a transverse ridge support- 
ing several prominent stipules, the stems verruculated with broadly oval white lenticels ; 
leaves lanceolately elliptie, acute at both extremities, green, glabrous, with pellucid 
yellow edges, with 10-12 pairs of arcuately conjoined nerves and reticulated veins, 
paler beneath, 4 in. long, 1$ in. broad, on broad petioles with membranaceous edges 
3-4 lines long; short racemes at the ends of 2 young axillary branchlets, consisting of 
2 pedicellated flowers, upon a short peduncle; pedicels bracteolated at the base; sepals 5, 
unequal, 6-7 lines long, very imbricated, 2 exterior acutely ovate, 3 interior broader, 
glabrous, furnished within at the base with a corona of dense small acute scales in 
2 series; tube of corolla narrowed at the base, funnel-shaped above, more than 1 in. 
long, with deltoid segments of nearly the same length; stamens seated in a pilose ring 
above the bottom of the tube, upon 5 long pilose lines; anthers 23 lines long, acutely 
hastate; disk cupular, sub-5-lobed, shorter than the 2 ovaries; style simple; clavuncle 
subcapitate, terminated by 2 short stigmata. 
Species excluded :— 
Stemmadenia Guatemalensis, Müller = Malouetia Panamensis, Müll. 
