ON SOUTH-AMEEICAN APOCYNACEiE. 77 



bilobed at the base, seated in the contraction of the tube below and alternate with 

 6 long glands or plicatures of the tube, as in the typical species ; disk of 5 connate glands, 

 forming a short tube with a crenate margia, round the base of 2 much longer, free, 

 oblong, pointed ovaries ; style slender, terete ; clavuncle thick, deeply 5-grooved, with a 

 basal umbracuHform appendage ; stigmata short and globose. 



7. Stemmadenia BELLA, nob. : ramulis teretibus, dicbotomis : foliis elliptico-ovatis, ssepius conduplicatis, 



imo acutis, apice recurvatim. subito acumiuatis, 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, psene a basi altemifloro ; pedicellis 

 validis, medio et sub calyce bracteolatis ; sepalis oblongis, obtusis, membranaceis, medio cras- 

 sioribus, insequalibus, valde imbricatis, intus squamulis numerosissimis acute laneeolatis crebre 

 2-3-seriatis munitis ; corolla tubulosa ; tubo (parte intra calycem) angustato, supeme subcampanu- 

 lato ; segmentis oblique rotundatis, reflexis, in sestivatione sinistrorsum convolutis ; staminibus ad 

 contractionem tubi insertis sub lineis 5 pilosis, inclusis ; antberis sagittatis ; disco annulari, margine 

 vix crenulato, ovariis 2 acutis ^ brei-iore ; stylo subbrevi ; clavuncula dilatatim oblonga^ imo mem- 

 brana donata ; stigmatibus brevissimis. In Mexico : v. s. in hb. Mm. Brit. Mexico (Brotero 884) . 



The axils are thickened and 1-1^ in. apart; the leaves are 3-5 in. long, lj-3 in. 

 broad, on petioles 3-5 lines long ; peduncle J in. long, floriferpus 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 bignoni^flora, nob. : Echites bignoniteflora, 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 elliptic, 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. If 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 pUose lines ; anthers 2^ 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 Ouatemalensis, Miiller = Malouetia Fanamensis, Miill. 



