100 ON SOIJTH-AMEEICAN APOCTNACIL^. 



above very laxly branched, lower branches IJ in. long, again branching and bearing 

 about 5 lax flowers on slender bracteolated pedicels 2 lines long; sepals acuminately 

 lanceolate, margins pellucid, 1^ line long, each with 2 lanceolate inner scales ; corolla 

 3| lines long ; tube 2^ lines long ; segments 1 J line long, acutely oblong, membranaceous, 

 with dextrorse convolution, all glabrous ; stamens almost wholly included, inserted in a 

 pUose ring ; anthers acuminate, with 2 long slender basal prongs ; disk of 5 oblong lobes, 

 as long as the 2 glabrous ovaries ; 2 follicles, slender, acute, glabrous, 6-8 in. long. 



This species, in its inflorescence and floral structure, closely resembles the preceding 

 from the same region, both being quite in accordance with Thyrsanthus ; it is therefore 

 neither a Forsteronia nor a Secondatia, more especially difl'ering from the latter in its 

 slender follicles, the seeds of which are not said to be comose. 



17. Thyrsanthus pyriformis, not. In Antillis : v. s. in herb. Mus. Brit. Cuba (Sagra 141) . 



A species near the two following. It has slender, pallid, striolate, dichotomous 

 branches, with axils 1-1^ in. apart; leaves obovate, subcuneate below the middle, 

 rounded and mucronulate at the summit, very glabrous, thinly chartaceous, flat, palish 

 green above, opake, finely corrugulate, fine ascending nerves scarcely prominulent, 

 with 2 minute glands at the base of the subimmersed midrib, pale yellow and opake 

 beneath, the slender nerves scarcely visible, 2-2^ in. long, l^-lf in. broad, on slender 

 channelled petioles 4-5 liaes long ; panicle terminal, 2J in. long, on a peduncle bare at the 

 base for 6 Hues, bifid, and again dichotomously branched, each branch bifid and bearing 

 2 fascicles of small, approximate flowers on pedicels IJ line long, supported by acute 

 membranaceous bracteoles J line long, all slightly puberulous ; sepals obtusely oblong, 

 with membranaceous margins, puberulous within along the nerve, | line long ; corolla 

 reddish, glabrous, 2 J lines long; tube IJ line long; segments Inline long, oblong, with 

 dextrorse convolution ; stamens mostly included ; anthers apiculate, with 2 long parallel 

 basal prongs ; disk of 5 free oblong lobes, as long as the 2 puberulous ovaries. 



18. Thyrsanthus parviflorus, nob.: Tabernamontana parviflora, Poir. Diet. Suppl. v. 276; A. DC. 

 I. c. p. 374. In Amer. meridionali : non 



A species near T. popuUfolim, with slender branchlets ; leaves oval-lanceolate, obtuse 

 at the base, acuminate, glabrous, dark green above, yellowish beneath, 2 in. long, 1 in. 

 broad, petiolated ; panicles terminal, geminate, subcymose, bearing many subumbellate 

 small flowers, on short bracteolated pedicels. 



19. Thyrsanthus fasciculatus, nob. : Taberneemontana fasciculata, Poir. Diet. vii. 531 ; A. DC. /. c. 

 p. 375. In Cayenne : non 



A species near the preceding. Its leaves are ovate-lanceolate, obtusely acuminate, 

 2-3 in. long, 1^ in. broad, petiolated; panicles cymose, axillary, divided, with many 

 small flowers fasciculate at the ends of each ramification; tube of corolla 2-3 lines 

 long, with linear segments. 



