376 COMPOSITE. Fctasites. 



radical leaves on strong j^etioles, cottony-tomentose or glabrate ; the flowers 

 whitish or inirplish, in sjiriug. — Gtertn, Fruct. ii. 40G, t. 16G; Grenier & Godr. 

 Fl. Fr. ii. 89; Reichenb. Ic^ Fl. Germ. t. 896-901; Benth. & Hook. Gen. ii. 

 438. Nardosmia (Cass.) & Fetasites, DC. Prodr. v. 205, 206. 



§ 1. No ligule to female flowers: an introduced plant. — Petasites, DC. 



P, VULGARIS, Desf. Eootstock very stout: leaves at maturity very large, round-cordate, an- 

 gulate-dentate and denticulate: heads raceniosely disposed: flowers pur])li.sli. — Tussilago 

 Petasites, L. — In cult, and waste grounds, spreading in the vicinity of Pliiladelphia, C. E. 

 S)tut/i. (Nat. from Eu.) 



§ 2. Female flowers with distinct ligules : rootstocks in ours slender and creep- 

 ing : leaves developing with or soon following the whitish blossoms, in spring. — 

 Nardosmia^ Cass. ; so named from the fragrant flowers of the original species, 



P. sagittata, Geay. Leaves from deltoid-oblong- to reniform-hastate, from acute to 

 rounded-obtuse, repand-deutate, very white-tomeutose beneath, when full grown 7 to 10 

 inches long : heads short-racemose becoming corymbose : ligules equalling or shorter than 

 the disk. — Bot. Calif, i. 407. Tussilago sagittata, Pursh, Fl. ii. 332. Nardosmia sacjittata, 

 Hook. Fl. i 307, and apparently a part of N. friijida, Hook. — Wet ground, Hudson's Bay 

 to Fort Franklin, west to the Rocky Mountains in Brit. Columbia, and south to those of 

 Colorado. 



P. frigida, Friks. Leaves small (1 to 3 or 4 inches long), rounded- or oblong-cordate to 

 rcnifuruihastate, sometimes even truncate at base, angulately or more deeply aiid siuuately 

 lobed, the lobes entire: heads few, corymbose. — " ISyll. 20," & Sum. A'eg. t-'caud. 182. 

 Tussilago friyida, L. ; Fl. Dan. t. 61, not of Pursh, wliose plant from Canada and New 

 England is either fictitious or the succeeding species. T. cori/mbosa, K. Br. in Parry Voy. 

 & Richards. App. Frankl. Journ. Nardosmia angidosa, Ca.'^s. Diet, xxxiv 188. iV. frigida 

 & N. corgmbosa. Hook. 1. c, at least mainly. — Arctic coast and west to Kotzebue Sound, the 

 Aleutian Islands, &c. (N. Eu. & Asia.) 



P. palmata, Gray. Leaves (7 to 10 or even 18 inches broad) round-reuiform in outline, 

 jialniately 7-11-cleft to beyond the middle or deeper; the lobes oblong-lanceolate to oblong- 

 cuneate, laciniate-dentate : scape multibracteate, bearing rather numerous heads. — Bot. 

 Calif, i. 407. Tussilago palmata, Ait. Kew. ii. 188, t. 2; Pursh, 1. c. Nardosmia pahnaia, 

 Hook. I.e.; Torr. & Gray, I.e. — Wet woodlands, Newfoundland and Labrador, Canada, 

 New England, and Wisconsin to Brit. Columbia and California. (E. Asia.) 



181. CACALIOPSIS, Gray. (KaKaXia, ancient Greek name of Colts- 

 foot? and 6ij/i-, likeness; from resemblance, if not to the ancient Cacalia, at 

 least to that of Touruefort.) — Proc. Am. Acad. xix. 50. — Single known species. 



C. Nardosmia, Gr.vy, 1. c. Robust perennial, a foot or two high, floccose-woolly, at length 

 glabrate : leaves considerably resembling those of Petasites palmata, alternate, long-petioled, 

 all but 2 or 3 radical, orbicular-cordate or flabellate, .5-9-cleft or rarely parted ; the lobes or 

 divisions rather broad, incisely lobed or dentate : heads (an inch high) few or several, pe- 

 dunculate, corymbosely or raceniosely dispo.sed at the naked summit of the stem : corolla 

 honey-yellow: Howers honey-scented. — Cuadia Nardosmia, Gray, Proc. Am. Acad. vii. 361. 

 Adenostijles Nardosmia, Gray, 1. c. viii. 631, & Bot Calif, i. 301, following Benth. & Hook. 

 — Open pine woods, California from Mendocino Co. northward {Bolander, Kellogg, Greene) 

 to Oregon and Washington Terr., SuksdorJ] Howell. 



182. LtJiNA, Benth. (Anagram of Imda, which this genus approaches.) 

 — Hook. Ic. Ph t. 1139 ; Benth. & Ilook. Gen. ii. 438. — Single species. 



L. hypoleuca, Bexth. 1. c. Herbaceous and simple-stemmed from a stout woody root- 

 stock, white with appressed tomentum : .stems hardly a foot high, equably leafy up to the 

 corymbiform cyme of several small heads : leaves ovate or oval, alternate, sessile, entire, 

 inch or less long, nervose-veiny and reticulated, the upper face soon glabrate and green. 



