360 SYNANTHEREJ!. 



1-2, short; acheniam glabrous: pappus-hairs setaceous.-In habit it approaches -ff«««<!/i- 

 mum, but has a glabrous receptacle : it is to be compared with JE. p^llesceusJ^C unknown 

 to me. Leaves 3", cuneate base 6'" long; panicle 6" diam. ; invo ucre 2" long, straw- 

 coloured- receptacle as thick as the slender pedicel ; style-branches clavate, long-exserted ; 

 achenium 5-gonal, half as long as the white pappus— Hab. Tnnidad 1, Cr. 



38 E canescens, F. Shrubby; branches cylindrical, tomentose; leaves opposite, 

 petioied small, ovate-roundish, rounded-blant, sinuate-crenate or entire, Z-nerved, tomen- 

 tose or puberulous above, hoary-tomentose beneath, slightly glandular; corymbs simple, um- 

 belliform terminal on racemose branchlets : heads \0-1lowered, pedicellate ; receptacle mi- 

 nute flat- involucral scales spreading, 3-sei-ial, very unequal, striate, puberulous on the hack 

 or giabrescent, interior oblong, bluntish, exterior ovate, blunt ; achenium puberulous : pappus 

 straw-coloured.— P&m. Ed. Burm. 1. 128./. 1. Vahl, Symh. t. 73. Lam. Ill.t. m.f. 5. 

 — E. sinuatum, lam.—k small shrub, with spreading branches ; leaves 5" -10 , involucre 

 2'" long. — Hab. Antigua!, Wkllschl. ; [Haiti to D^sirade 1]. 



39. B. iresinoides, Kth. Suffrutioose, slender, trailing; branches cylindrical,' pubes- 

 cent or glabrate ; leaves opposite, petioied, ovate, acuminate, or ovate-lanceolate, cuneate at 

 the base, remotely toothed or entire, trijilinerved, villous-pubescent beneath, or gkbrescent, 

 subeglandular; corymbs in a loose panicle: heads h-flowered, in small cymes, glomerate- 

 sessile or pedicellate ; receptacle minute, flat ; involucral scales spreading, 3-serial, very 

 unequal, striate, glabrous, pointed, interior oblong, exterior shortly elliptical; achenium 

 scabrous on the angles: pappus white.— Z'M. N. Gen. t. 340.— E. Sieherianum, BO. I 

 Mikania serratifolia, &eT). Tr. 72.— Leaves 3"-l", involucre 2'" long ; flowers white.— Hab. 

 Dominical, Imr. ; S.Vincent!, Guild.; Trinidad I, Siei., Locih., Cr.; [Martinique; Pa- 

 nama ! to Venezuela]. 



40. B. tetranthum, Gr. (». sp). Sufi'niticose, slender, trailing ; branches' cylindricd, 

 striate, slightly puberulous, or glabrate ; leaves opposite, petioied, oblong-lanceolate, acumi- 

 nate with a bluntish point, bluntish at the base, rigidulous, repaud or subentire, tripHnerved, 

 reticulated, glabrous, subeglandular ; corymbs trichotomous, in a large spreading panicle : 

 heads i-Jlowered, pedicellate, in small, fastigiate, special corymbs; receptacle very minute; 

 involucral scales'W, loosely imbricate, 3-4-serial, striate, scabrous with minute glands, de- 

 void of hairs, blunt, interior oval-oblong, the other oval ; achenium scabrous on the angles : 

 pappus tawny. — ^Leaves 3"-li" long, 16"'-6"' broad : petiole 3"'-4"' long, not enlarged ; 

 panicle often 6" long, pyramidal : internodes in the primary axis 1" long, in the branches 

 gradually shorter ; heads ovoid ; involucre tawny, 1"' long : scales convex, 3-striate ; ache- 

 nium 5-gonal, black, as long as the pappus : pappus-hairs scabrous, flattened at the base. — 

 Hab. Jamaica I, Sw., mixed with Gritonia pandora, but devoid of pellucid dots, Macf., 

 Pd., Wullschl., in woods, Manchester. 



§ 4. ExiMBBiCATA, DC. — Receptacle depressed, usually minute. Involucre spreading, 

 l(-3)-««naZ, ofien with shorter, exterior scales: scales of the principal series suh- 

 egual. 



* Stem shrubby ; leaves glabrescent. 



41. E. glanduloswu, .STM. Shrubby; branches Rj^&nca\, densely glandular, v/'ifCii. 

 short, stipitate glands, devoid of hairs ; leaves opposite, petioied, rhomboid-ovate, sharfly 

 pointed, coarsely serrate above the cuneate base and below the point, Z-nerved, nearly gla- 

 brous above, bispidulous along the nerves and glabrate beneath, obscurely glandular and with 

 stipitate glands on the petiole and the lower part of the margin ; corymbs fastigiate-tricho- 

 tomous : heads iO-lO-flowered, -clustered, pedicellate ; receptacle flat ; involucral scales 

 lanceolate, acuminate, striate, glandular-ciliate, most snbequal : corolla abruptly dilated ; 

 achenium glabrous. — Kth. N. Gen. t. 346. — E. adenophorum, Spreng. — Leaves 2", petioles 

 10"'-8"', involucre 2'" long ; style-branches slender, puberulous,— Hab. Jamaica!, March; 

 [Mexico]. 



42. E. ageratifolium, DC. Shrubby ; branches cylindrical, glabrous, puberulous at 

 the summit, eglandular ; leaves opposite, petioied, ovate or deltoid, with a bluntish point, 

 coarsely serrate above the subtrunoate or rounded base and below the point, tripHnerved near 



i/hthe base, glabrous, eglandular; corymbs trichotomous : heads lOi-ZO) -Jlowered, pedicellate; 

 receptacle minute ; involucral scales lanceolate, bluntish, subcstriate, glahrescent, most sub- 



