434 COMPOSIT.E. Erechtites. 



1. E. hieracifolia (RaC) : somewhat hairy or glabrous; stem simple or 

 paniculate above, striate-sulcate ; leaves lanceolate-oblong, acute, unequally 

 and sharply toothed or incised, tapering to the base, sessile; the upper often 

 sagittate-auriculate at the base and partly clasping; involucre glabrous, sub- 

 tended by small subulate-linear calyculate bracteoles. — DC! prodr. 6. p. 

 294. E. hieracifolia, prsealta, & elongata, iJa/. Senecio hieracifolius, Lrnra. 

 spec. 2. p. 866 ; Michx. ! fl. 2. p. 119 ; Pursh I ft. 2. p. 529 ,• Ell. sk. 2. p. 

 328; Hook. ! fl. Bar. -Am. l.p. 332 ; Darlingt. ! fl. Cest. p. 498. S. Ameri- 

 canus altissimus, &c. Herm. parad. Bat. t. 226 ; Pluk. phyt. t. 112, /. 1. 

 Cineraria Canadensis, Walt. ? Neocis hieracifolia (& N. rigldula) Cass, in 

 diet. sci. nat. 34. p. 387. 



Moist waste places, Canada ! Saskatchawan ! and throughout the United 

 States! &c. ; particularly abundant in recent clearings, where the wood has 

 been burnt (whence the popular name of Fire-rceed). July-Sept. — A coarse 

 weed, 1-5 feet high, with the aspect of a Sonchus. Pappus copious and very 

 white. Corolla 10-nerved. 



Div. 2. EusENECioNEa:, DC. — Heads either homogamous and 

 discoid, or heterogamous and radiate ; the rays pistillate. 



162. CACALIA. Linn. (excl. spec.) ; Schkuhr, handb. t. 236 ; DC. I. c. 



Heads 5-m any-flowered; the flowers all tubular and perfect. Scales of 

 the cylindraceous involucre 5-30, in a single series, often with a few bracteoles 

 at the base. Receptacle flat, not chaffy, sometimes with a conical or scale- 

 like appendage in the centre. Limb of the corolla expanded, deeply 5-cleft ; 

 the lobes usually furnished with a mid-nerve. Branches of the style tipped 

 with a very short cone, or obtuse, usually with a ring of minute hairs. 

 Achenia oblong, glabrous, not rostrate. Pappus of numerous capillary sca- 

 brous bristles. — Perennial herbs, mostly very glabrous ; with alternate often 

 petioled leaves, and corymbose heads. Flowers white, ochroleucous, or rarely 

 rose-color. 



§ 1. Receptacle flat and naked. — Eucacalia, DC. 



1. C. suaveolens (Linn.) : glabrous; stem striate-angled ; leaves triangu- 

 lar-lanceolate, hastate, acute, unequally serrate-toothed ; the cauline on winged 

 petioles : heads in a compound corymb, 25-30-flowered ; scales of the involu- 

 cre about 12; bracts several, setaceous-linear, spreading — Linn.! spec. 2. p. 

 835; Michx.! fl. 2. p. 96; Pursh, fl. 2. p. 518; Schkuhr, handb. t. 236 ; 

 DC. ! I. c. Senecio suaveolens. Ell. sk. 2. p. 328. 



Woods and along streams, Canada? New York (Avon, B. D. Greene!) 

 and Connecticut, (Milford, Dr. Bobbins!) to Virginia! the western part of 

 Georgia ! Kentucky ! and Illinois ! Aug.-Oct. — Plant 3-5 feet high. 

 Radical leaves on long petioles ; the large hastate lobes mostly obtuse, often 

 2-lobed. Branches of the style canaliculate, very obtuse. 



§ 2. Receptacle usually furnished vnth a central conical or scale-like appen- 

 dage : involucre 5-leaved and 5-flowered, naked, or slightly and minutely 

 bracteolate at the base. — Conophora, DC. 



