184 ON SOTJTH-AMEEICAN APOCTNACE^. 



its much more slender habit, its branches very weak, tvnning, or simply sub- 

 dichotomous, furnished at its rather remote nodes with a pectinate ring of fleshy 

 slender stipules ; the inflorescence is lateral and pendulous, upon an elongated bare 

 peduncle, bearing above a few large campanulate laxly secund flowers, upon pedicels 

 without bracts, thus differing from the peciiliar characteristics of Amblycmthera. 



Mandevilla, Lindl. Sepala 5, lanceolato- vel lineari-oblonga (quorum 1 saepe latius), erecta, intus ad 

 basin squamula lata pectinatim denticulata vel ciliata munita. Corolla tubulosa ; t%ihus imo anguste 

 cylindricus, supeme campanulatim inflatus ; segmenta late dolabriformia, dextrorsum convoluta. 

 Stamina 5, in contractionem tubi insertaj filamenta retrorsum hispida; antJieree lineares, apice 

 membrana apiculatse, imo breviter 2-lobae, in conum conniventes. Discus urceolatus, membra- 

 naceus aut camosus, margine ad tertiam vel dimidiam partem 5fidus, ovariis subbrevior. Ovaria 

 2, libera. Styhts filiformis j clavuncula oblonga, 5-sulcata, imo membrana peltata expansa ; stigmata 

 2, parva, terminalia. Folliculi 2, longi, teretes ; semina plurima, oblonga, compressa, raphe longi- 

 tudinali signata ; coma apicalis, molliter sericea, expansa, testa triple longior. 



Frutex Am£rica meridionalis, volubilis vel scandens ; ramuU subtenues, axillis dilatatis, stipulis plu- 

 rimis acutissimis pectinatim erectis munit ; folia petiolata, ovato-oblonga, imo S(epe cor data, subtus 

 plerumque pubescentes ; racemi axillares aut terminates, longe pedunculati, interdum abortions ad 

 florem unicum reducti ; floras pedicellati, speciosi, albi vel coccinei. 



Mandevilla suaveolens, Lindl. Bot. Reg. xxvi. p. 36, tab. 7 ; Hook. Bot. Mag. 67, tab. 3797 ; 

 Paxton Mag. 16, tab. 290; Endl. Gen, Suppl. i.p. 1396 : Echites suaveolens, A. DC. (non Mart. & 

 Grail.), Prodr. viii. p. 452. In Buenos Ayres cult. : non vidi. 



A twining plant, with large odoriferous flowers, sent home by Tweedie in 1840, from 

 Buenos Ayres, where he found it cultivated under the name of Jasmin de Chile. It has 

 subglabrous branches about the thickness of a crow's quill, with axils 3^ in. apart, fur- 

 nished on each side with 6 acute fleshy stipules 2 Hues long, united in a pectinate ring ; 

 leaves oblong, cordate at the base, acute, submembranaceous, glabrous above, paler beneath 

 and glaucous, with hairy tufts in the axils of the brown nerves, the veins very reticulate, 

 2J in. long. If in. broad, the basal sinus 2-3 lines deep, on petioles 1-2 lines long ; 

 raceme lateral, pendent, on a glabrous peduncle bare at its base for 2 in., bearing above 

 several alternate flowers on ebracteate secund pedicels about ^-^ in. apart, 9 lines long; 

 flowers cream-coloured, odoriferous, 2^ in. long ; sepals lanceolate, erect, subimbricate, 

 4 lines long, each with a broad pectinate scale within, as long as the disk; tube of 

 corolla 1^ in. long, narrowed cyUndrically at the base for half its length ; segments 

 dextrorsely convolute, broadly dolabriform, the sinister angle acute, sinuate above, 

 rounded, 1 in. long, 9 lines broad ; stamens seated in the contraction of the tube, on a 

 densely pilose ring ; filaments retrorsely hispid ; anthers oblong, cohering, with a mem- 

 branaceous apex, obtusely bUobed at the base ; style slender ; clayuncle incrassate, 

 oblong, 6-grooved, with a basal peltate membrane ; stigmata 2, small, erect ; disk of 5 

 fleshy, oblong, truncate lobes, shorter than the 2 pointed oblong ovaries ; follicles 2, 

 terete, parallel, pendent, 1-1^ foot long ; seeds with an apical coma. 



Ambltantheea. 

 This genus, proposed by Miiller in 1860, has not been acknowledged by other botanists. 

 The name was given on account of the short, obtuse, basal lobes of its anthers— a cha- 



