SYNANTHEREJE. 365 



hearing reduced, distcmt leaves; lowest leaves rosular, spatbulate, few-serrate or entire, the 

 cauline minute, lanceolate-linear ; involucral scales linea*, pointed, glabrescent, 2-3-BeriaI, 

 exteribr short ; ray-flowers filiform, sub-1-seriaI, shortly exserted; achenium pubescent : 



• pappus pale-rusty. — Sw. Ohs. t. 8. /. 2. — E. cuneifolius, DC. : the entire-leaved form. — 

 6"-18" hig^ ; heads 4"' diam. ; ray whitish. — Hab. Jamaica 1, Maef., Pd., M'Nai, 

 Tfa/fecM, in pastures and fields ; [Cuba!, Haiti, Portorico]. 



. 64. E. ri-Tularis, Sw. Pubescent ; stem leafy, ascending at the base ; leaves spathulate- 

 lanceolate (or spathulate), broad at the base, pinnatifid above the middle, or with a few 

 large serraturesy rarely subentire, the lowest rosular ; heads corymbose ; involucral scales 

 linear, bluntish at the acuminate top, g-S-serisd, exterior shorter ; ray-flowers filiform, sub- 

 1 -serial, shortly exserted; achenium pubescent: pappus, pale-rusty. — SI. t. l&S. /. 3. — 

 E. jamaicensis, L. — Heads of tlie preceding. — Hab. Jamaica 1, I'd., along river-banks ; 

 [«aba!]. 



65. E. strictu^ DC. ^eaxlj glabrous ; stem leafy, slender; leaves scattered, scabrous 

 on the margin, pointed or acuminate, inferior spathulate-lanoeolate, remotely serrulate, A 

 superior lanceolate or linear, entire ; heads corymbose,; involucral scales linear, spreading, /t 

 sharply acuminate, glabrous, 2-3^serial, exterior .shorter ; ray-flowers rounded at the top, 

 several-serial, very shortly exserted:- disk few-flowered; achenium glabrescent : pappus 

 tawny, subequal. — 8"-3' high, devoid of a basUar rosule ; involucre 3'" long : ray-flowers 

 20-25, less than 1'" longer than the involucre, revolute at the top. — Hab. Jamaica !, M'Nab ; 

 [Mexico!]. - / 



'^ 66. E. spathulatus, V. Pilose ; stem leafy, erect ; leaves scattered, inferior oval or 

 spathulate, contracted into a long linear base, coarsely few-serrate, superior lanceolate, sub- 

 entire; heads corymbose; involucral scales linear, sharply acuminate, glabrescent, sufe- 

 1-serial, few exterior short; ray-flowers filifo>-m, many-serial, included': disk few-flowered ; 

 achenium pubescent : pappus pale-rusty. — 1'-3' high ; heads 4'" diam. : ray-flowers very 

 nimierous, as long as the pappus. — Hab. Antigua!, Wullschl.; [Virgin Islands]. 



** Heads in a racemiform panicle. 



67. E. bouariensis, L. Pilose; stem leafy, erect; leaves lanceolate, inferior few- 

 serrate, often broader, or pinnatifid-sinuate, superior entire ; panicle racemiform : inferior 



' branches longer; involucral scales linear, acuminate, sub-1-serial, exterior shorter; ray- 

 flowers filiform, many-serial, included: disk-flowers 5-dentate; achenium wjth scattered 

 hairs, or glabrescent ; pappus tawny. — Ilill. Elth. 2. /. 334 ; the sinuate-leaved form. — 

 Conyza ambigua canbsea, IjCSS. C. albida, W., Less., (Linnaa, &.p. 136).— 1'-3' high; 

 leaves 2"'-6"' broad; heads 4"' diam., white.— Hab. Jamaica!, Macf, Bist., Pd., March, 

 a weed, in pastures; S. Kittj!, .B/s., Antigua!, FwSicA/., S. Vincent !, Guild.; Trinidad!, 

 Cr., in'canefields ; [Central America to Buenos Ayres]. 



68. E. canadensis, L. Hiapidulous or glabrescent; stem leafy, erect; leaves Ian- ^ 

 ceolate-linear, ciliate, subentire; panicle racemiform; involucral scales linear, bluntish, • 

 3-serial, exterior shorter ; ray-flowers linear, msay-ssna^., included : disk-flowers 4-dentate ; ^ 

 achenium glabrescpnt; pappus straw-coloured.— JteAi. Ic. Germ. t. 917./. 1.— 1'-3' high; 

 leaves l"'-2"' broad; heads 3'" diam., whitish.— Hab. Jamaica!, Ma<f., Pd., Wils., a 

 common weed; S. Kitts!, Bis., Antigua!, Wullschl., Dominica!, Imr., S. Vincent!, Gvild., 

 Trinidad ; [Canada to Brazil ; Northern Europe to the Cape and Persia !]. 



Sect 2. Stenactis, Cass.— Achenium %nerved: pappus 2-senal: exterior series minute. 

 69 E. apurensis, Gr. Pilose, snfl^rut«scent ; stem erert, fastigiate-branched above; 

 inferior leaves ohovate or spathulate, coarsely serrate, or pinnatifid at the base, superior . 

 lanceolate, few-serrate or entire,; corymbs terminal on the branches, in a ^readmg,fastu J 

 giate vanicle; involucral scales linear, sharply acuminate, glabrescent 2-serial, extenor 

 shorter; ray-flowers filiform, many-serial, included; disk few-flowered, hermaphmite ; 

 achenium puberulous, glabrescent: pappus pale-rusty, exterior setaceous.— Oonyza,£tt.— 

 EesembliHg several Conyzce, e. g. 0. lyrata, Kth., and C. lur^da, Schmidt, which however 

 are true Conyzce, having tubular-filiform, exterior flowers, which in om- species are hgulate. 

 3'-4' high; inferior leaves 2i" long, H" broad; heads 4'" diam.- Hab. S. Vmoent!, Gu%ld.t 

 Trinidad I, Seh., Or. ; [Mexico ! to Venezuela]. ^ ^ ^ 



