Cacalia. COMPOSITiE. 



401 



1. Cacalia suaveolens, Linn. Sweet-scented Indian Plantain. 



Stem striate and angled ; leaves triangular-lanceolate, hastate, acute, unequally serrate- 

 toothed ; the cauline on winged petioles, green on both sides ; heads many-flowered • scales 

 of the mvolucre about I'Z.-Linn. sp. 2. p. 835 ; Mickx. fl. 2. p. 96 ; Pursh, ft. 2. p 518 • 

 " Schk. handh. t. 236 ;" Beck, hot. p. 199 ; DC.prodr. 5. p. 327; Torr. ^ Gr. fl. N. Ain. 

 2. p. 434. Senecio suaveolens, Ell. sk. 2. p. 328. 



Perennial ? Stem 3-4 feet high, smooth. Leaves 3 - 5 inches long and 1 - 2 inches 

 wide smooth, rather thin ; the radical ones on long petioles, with conspicuous hastate lobes 

 Heads 2o - 30-flowered. Involucre with several setaceous spreading bracts at the base 

 blowers yellowish- white. Receptacle flat, naked. 



Fertile damp soils, along streams, etc. Avon, Livingston county (Dr. B. D. Greene). 

 August - October. This species has the habit of Erechtites hieracifolius. When dry, it 

 exhales the odor of Medicago ccerulea. 



2. Cacalia atriplicifolia, Linn. (Plate LIX.) Indian Plantain. 



Stem terete, glaucous ; leaves all petioled, whitish and glaucous underneath, palmately 

 veined, angularly lobed or toothed ; radical and lower cauline deltoid-cordate ; the upper 

 rhomboid, cuneate at the base ; involucre 5-leaved, 5-flowered.— imn. sp. 2. p. 835 ; Michx. 

 fi. 2. p. S6 ; Pursh, fl. 2. p. 518 ; " Schk. handb. t. 236 ;" Nutt. gen. 2. p. 137 ; Ell. sk. 2. 

 p. 310 ; Beck, hot. p. 199 ; Darlingt. fl. Cest. p. 499 ; DC.prodr. 6. p. 329 ; Torr. ^ Gr. 

 fl. N. Am. 2. p. 435, Senecio atriplicifohus. Hook. fl. Bor.-Am. 2. p. 332. 



Stem erect, 3-6 feet high, mostly simple. Lower leaves 2-4 inches long and of about 

 the same breadth, strongly nerved, rather thick, more or less distinctly cordate ; the petioles 

 2-5 inches long. Heads numerous, in a compound terminal corymb. Involucre venlricose, 

 with several minute bracteoles at the base ; the scales lanceolate-oblong, rather obtuse! 

 Flowers greenish-white. Achenia oblong, ribbed, crowned with a whitish ring, on which the 

 copious pappus is inserted. Receptacle commonly with a central somewhat chaffy column, 

 consisting probably of united paleae ; this, however, is sometimes almost wanting. 



Moist soils, on the borders of woods. Near Gencseo {Rev. Mr. Bennett). Near Rochester? 

 July - September. The leaves are sometimes used as an application to wounds. 



40. SENECIO. Linn. ; DC. prodr. 6. p. 340. gi^oundsel. 



[ So named from the Latin, scncx, an old man. Sco EnioEnoN.] 

 Heads many-flowered, usually radiate with pistillate rays ; sometimes discoid, with all the 

 flowers tubular and perfect. Scales of the cylindrical involucre in a single series, often 

 calyculatc. Receptacle naked or alveolate. Achenia neither rostrate nor winged. Pappus 

 [Floea.J 51 



