376 COMPOSITE. Petasites. 



radical leaves on strong petioles, cottony-tomentose or glabrate ; the flowers 

 whitish or purplish, in spring. Gaertn. Fruct. ii. 406, t. 1G6; Grenier & Godr. 

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

 438. Nardosmia (Cass.) & Petasites, DC. Prodr. v. 205, 20G. 



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



P. vuLoAms, DESF. Rootstock very stout: leaves at maturity very large, round-cordate, an- 

 gulate-dentate and denticulate : heads racemosely disposed : flowers purplish. Tussitar/o 

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

 Smith. (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, GRAY. Leaves from deltoid-oblong- to reniform-hastate, from acute to 

 rounded-obtuse, repand-dentate, very white-tomentose 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. Titssi/cn/o sar/ittata, Pursh, Fl. ii. 332. Nardusmia sac/ittata, 

 Hook. Fl. i 307, and apparently a part of N. fri/jida, 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" 

 reniform-hastate, sometimes even truncate at base, angularly or more deeply and sinuately 

 lobed, the lobes entire: heads few, corymbose. " Syll. 20," & Sum. Veg. Scand. 182. 

 Tussilago frigida, L. ; Fl. Dan. t. Gl, not of Pursh, whose plant from Canada and Xew 

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

 & Richards. App. Frankl. Journ. Nardosmia anrjulosa, Cass. Diet, xxxiv 188. N. frigida 

 & N. corymbosa, 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, 

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

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

 Calif, i. 407. Tussilano palmata, Ait. Kew. ii. 188, t. 2; Fursh, 1. c. Nurdosmia palmata, 

 Hook. 1. c. ; Torr. & Gray, 1. c. Wet woodlands, Newfoundland and Labrador, Canada, 

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



181. GACALlOPSIS, Gray. (KaraXta, ancient Greek name of Colts- 

 foot ? and oi/rtr, likeness ; from resemblance, if not to the ancient Cacalia, at 

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



C. Nardosmia, GRAY, 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, iucisely lobed or dentate : heads (an inch high) few or several, pe- 

 dunculate, corymbosely or racemosely disposed at the naked summit of the stem : corolla 

 pure yellow : flowers honey-scented. Cacalia Nardosmia, Gray, Proc. Am. Acad. vii. 361. 

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

 Open pine woods, California from Meudocino Co. northward (Bolander, Kelloya, Greene) 

 to Oregon and Washington Terr., Suksdorf, HowclL 



182. LTJlNA, Benth. (Anagram of Inula, which this genus approaches.) 

 Hook. Ic. PI. t. 1139 ; Benth. & Hook. 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, 



