APOCYNEjE. 413 



15. H2EMADICTYON, Lindl. 



Corolla salver-shaped, produced into an annular plait at the throat : lube cylindrical : 

 lobes oblique, dextrorsely contorted. Stamens inserted into the corolla-tube : authers 

 connivent, adhering at the middle to the stigma : connective hastate below the cells. 

 Disk 5-glandular. Follicles linear : seeds with a terminal coma. — Shrubby climbers : tiowers 

 cymose ; pedicels geminate ; calyx bearing scales on the inside. 



32. H. venosum, Lindl. Glabrescent ; leaves ovate-oblong, cuspidate, archveined : 

 primary veins distant : cymes axillary, few-flowered-racemiform : pedicels longer than the 

 recurved short calyx ; corolla devoid of appendages : lobes obliquely oblong, half as long as 

 the tube ; authers included.— Jacq. Amer. Pict. t. 32. Bot. Mag. t. 2473. Tuss. 1. Fl.t.U: 

 the calyx too large. — Echites quinquangularis, Jacq. E. sanguinolenta, Tuss. H. nutans, 

 A. DC. (Echites, Anders.). — Leaves 4"-5", calyx 1'", corolla-tube 8"' long ; pedicels re- 

 curved ; flowers greenish-yellow. — Hab. Dominica !, Imr., S. Vincent ; Trinidad !, Cr. ; 

 [Haiti ; New Granada]. 



16. ECHITES, L. 



Corolla salver-shaped, naked : tube usually enlarged at the included stamens : lobes ob- 

 lique, dextrorsely contorted. Anthers connivent, adhering at the middle to the stigma. 

 Disk 5-glandular or 5-lobed, rarely subentire. Follicles linear or torulose : seeds with a 

 terminal coma. — Shrubs, rarely herbs, usually climbing ; cymes axillary, usually corymbi- 

 form : pedicels often geminate. 



Sect. 1. Euechites, A. DC. emend. — Corolla-tube subcylindrical. Coma sessile at the top 

 of the seed ; radicle slender, as long as the narrow cotyledons. — Climbers, rarely trailing, 

 or erect shrubs. 



This section comprises Echites, MesecMtes, and Amblyanthera of J. Mull. : the form of 

 the anthers is more diversified than he admits, and the embryo, which he did uot know in 

 the two latter of his genera, has in E. trifida a slender radicle, and agrees nearly with his 

 Echites : only the oblong-linear cotyledons are less foliaceous, and similar to those of Rhab- 

 dadenia, but flatfish. In E. neriandra the cotyledons are linear and involute at the mar- 

 gin : this, though anomalous by the appendages of its anthers, belongs to Urechites, which, 

 as well as Rhabdadenia (or Laubertia, A. DC), has excellent characters in the seed, but, 

 when in flower, is not to be distinguished from Echites. 



* Anthers oblong, blunt, with an inflexed mucro, 2-corniculate at the base. 



33. E. torosa, Jacq. Glabrous ; leaves ovate-lanceolate, acuminate ; cymes corymbi- 

 fonn : pedicels few, gemiuate ; calyx-segments glandular, devoid of an interior scale, ovate- 

 lanceolate, acuminate, one-fourth as long as the corolla-tube ; corolla yellow : tube cylin- 

 drical, abruptly enlarged from the middle, half as long again as the lobes ; anthers oblong, 

 blunt, with two narrow basilar appendages, glabrous; follicles "torulose." — Jacq. Amer. 

 Pict. t. 34. — Amblyanthera, J. Hull. E. torulosa, Jacq., Sw. Obs. — Leaves 2", calyx 1£"', 

 corolla-tube 6'", lobes 4'" long. — Hab. Jamaica !, 31'Nab, Pd., in mountain-woods, Man- 

 chester, Liguanea (Jacq.). 



** Anthers oblong, blunt, with an inflexed mucro, cordate or subcordate at the base. 



34. E. trifida, Jacq. Glabrous ; leaves ovate-oblong or obloug-lanceolate, mucronate ; 

 cymes axillary, contracted, exceeded by the leaves : pedicels approximate in pairs (or trun- 

 cate) ; calyx-segments orate, blunt, furnished with art interior scale, ODe-sixth as long as 

 the corolla-tube ; corolla greenish: tube cylindrical, abruptly enlarged above the middle, 

 twice as long as the obovate lobes ; anthers oblong-lanceolate, bluntish, subcordate at the 

 base, glabrous ; follicles cylindrical. — Jacq Amer Pict. t. 31. — Mesechites, J. Mv.ll. — 

 Leaves 4"-2", calyx 2"', corolla-tube 12'", follicles 12", seeds 8'" long : coma rusty— Hab. 

 Trinidad (Sieb-) ; [Panama ! to Guiana ! and equat. Brazil]. 



35. E. subsagittata, R. P. Pubescent or glabrate ; leaves oblong or oblong-lanceo- 

 late, mucronate-acute, minutely cordate at the base ; cymes racemiform, equalling the leaves : 

 inferior pedicels solitary ; calyx-segments subulate, furnished with an interior scale, one- 



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