270 COMPOSITE. (COMrOSITE FAMILY.) 



1. E. hieracif61ia, Raf. (Fireweed.) Often hairy; stem grooved 

 (l°-rj° liijili); liaves lanceolate or oblong, acute, cut-toothed, sessile; the 

 upper with au auricled clasping base. (.Senecio hieraciColius, L.) — Moist 

 woods : common, especially northward, and in recent clearings, where the 

 ground has been burned over ; wlience the popular name. July - Sept. 



62. CACALIA, L. Indian Plantain. 



Heads 5 - many-flowered ; the flowers all tubular and ])erfcct. Scales of tho 

 involucre in a single row, with a few bractlcts at the base. Iteceptacle naked. 

 Corolla deeply Scleft. Achcnia oblong, smooth. Pappus of numerous capil- 

 lary bristles. — Smooth and tall perennial herbs, with alternate often petioled 

 leaves, and rather large heads, in flat corymbs. Flowers white or whitish. 

 (An ancient name, of uncertain meaning.) 



* Inrohtcre "2n - ^0-fhwered, with seveial brads at its base: receptacle flat. 



\. V. SUav6olens, L. Stem grooved (.3° -5° high); leaves triangular- 

 lanceolate, htylbfrd-shaprd, pointed, serrate, those of the stem on winged jjetioles. 

 — Rich woods, Coiiiiectieut to Wisconsin and Kentucky : rare. Sept. 



* * Involucre 5-leaved and 5-floicered, its bracts minute or none : receptacle beariu<j 



a more or less evident scale-lik^ pointed appendage in the centre. 



2. C. renifox'mis, Muhl. (Great Indian Plantain.) Stem (4° -9° 

 higli) groo\ed and angled ; leaves green both sides, dilated fan-shaped, or the lowest 

 kidnfij-form (l°-2° broad), repand-tuothed and angled, palmately veined, peti- 

 oled ; the teeth pointed ; corymbs large. — Rich damp woods, New Jersey to 

 Illinois, and southward along the mountains. Aug. 



3. C. atriplicifblia, L. (Pale Indian P.) Stem terete (30-6° high), 

 and with the palimitelij veined and angnlatc-lohed leaves qlaucons ; lower leaves 

 triangular-kidney-form or slightly heart-shaped ; the upper rhomboid or 

 wedge-form, toothed. — Rich woodlands, W. New -York to Wisconsin, and 

 southward Aug. 



4. C. tuberdsa, Nutt. (Tup.kkois Indian P.) Stem angled and grooved 

 (2° -6° high), from a thick or tuberous root; kaces green both sides, thick, 

 strongly 5-7-nerved ; the lower lance-ovate or oval, nearly entire, tapering into 

 long petioles ; the upper on short margined petioles, sometimes toothed at the 

 apex. — Wet prairies, &c., Ohio to Wisconsin, and southward. Jnnc. 



63. SENECIO, L. Gkoundsel. 



Heads many-flowered ; the flowers nil perfect and tubular, or mostly with 

 radiate marginal ones ; the rays pistillate. Scales of the involucre in a single 

 row, or with a few bractlets at the l)ase. Receptacle flat, naked. Pap])us of 

 numerous very soft and slender capillary bristles. — Herbs, in the United States, 

 with alternate leaves and solitary or corymbed heads. Flowers chiefly yellow. 

 (Name from senex, an old man, alluding to the hoary hairs which cover many 

 species, or to the white hairs of the pn])pus.) 



* Root annnal or in No. 3 biennial: heads several or muni/ in a corymb: herbage 



glabrous or soon becoming so. 



