

482. CIRSIUM. 



lineari-lanceolate, adpressed, coloared. L. not 

 webby b.eiieath, piunatifid. Segm. lanceolate, 

 acuminate, undivided, p. 7- Moist moun- 

 tain meadows. Alps. Boh. 



HYBKIDS. 



1. palustri-rivulare (C. subalpinum, DC). 

 Root and L. more like C. rivulare. Fl. 

 like C. palustre. Inflorescence intermediate. 

 Bracts 0. 



Another fonn differs in little from C. rivu- 

 lare, except in having somewhat decurrent L. 



rivulari-palustre. L. and Wings of the 

 Stem like those of C. palustre. Fl. of C. ri- 

 vulare. Inflorescence intermediate, but most 

 like the last. Sw. and Savoy. — Njegeli in 

 Koch. 



2. rivulari-heterophylliim (C. pauciflorum, 

 Koch, ed. 1). L. with a whitish web beneath, 

 dentate or piunatifid, with lanceolate, nearly 

 horizontal lobes. PhyU. oblongo-triangular, 

 ending in a very short spreading spine. Bor- 

 der of Fits, longer than tube, purple. L. 

 nearer to C. heteropJiyllum ; Fl. to C. rivulare. 

 Meadows on the granitic Alps of Styria. — 

 N^,GELi in Koch. 



31. inontauuna. " L. sessile, ohlongo- 

 eUiptic, hairless, paler beneath, sinuate. Segm. 

 ovate, remotely serrate, spinulose : upper laci- 

 niate, Fl. crowded. PhyU. lanceolate, mu- 

 cronulate, spreading. Fl. -stalks erect, with 1 

 or 2 bracts. M. purple, p. Woods. Monte 

 Baldo."— Poll. 



22. heterophyllus. Fl. solitary or some- 

 what clustered, globose, on long, leafless, webby 

 stalks. PhyU. adpressed, unanned : inner long, 

 scariose, coloui-ed, entire. L. lanceolate, some- 

 times with lanceolate offsets, serrate, cottony 

 beneath. Stem-L. much enlarged at base. 

 p. 6-8. Mountain meadows. 



** L. hardly or not at all enlarged at the 

 base. 



23. pratense {anglicum, DC). Root some- 

 what tuberose. Stem usuaUy 1 -flowered, webby 

 at top. L. lanceolate, sinuato-dentate, webby 

 beneath : lower hafted ; upper sessUe or slightly 

 amplexicaul, distant. PhyU. adpressed, webby ; 

 outer mucronate. p. 6. Soggy meadows. 



Forsteri. Probably a hybrid between this 

 and C. palustre. L. numerous, decurrent, but 

 not to the next L., pinnatifid. Lobes bifid. FL 

 2 or 5 together. Outer PhyU. lanceolate, 

 mucronate ; inner finely acute. Seems in all 

 respects intermediate. 7, 8. Boggy. Tunbr. 

 WeUs. Charmouth. Mayo. 



24. bulbosum. Root tuberous. Stem 

 usually 1 -flowered, somewhat wooUy. Upper 

 L. smaU and distant. L. somewhat webby be- 

 neath, pinnatipartite. Lobes somewhat pal- 

 mate. Lower L. hafted ; upper sessUe. PhyU. 

 webby, erect: outer mucronate. p. 7, 8. 

 Boggy meadows and thickets, m. Eur. Koch 

 unites this with the preceding . 



HYBRIDS. 



1. 'palustri-btilbosum. L. and ramification 

 of C. bulbosum. Fl. of C. palustre, but some- 

 what larger. Zurich. 



Another foi-m differs from C. bulbosum chiefly 

 by having decm-rent L. Ziirich. 



bulboso-palustre. L. of C. palustre. FL 

 of C. bulbosum. Inflorescence intermediate. 

 Ziii-ich. — NjEgeli in Koch. 



2. bulboso-acaide {Zizianum, Koch). L. of 

 C. acaule. Fl. of C. bidbosum. 



Another form differs chiefly from C. acaule 

 in ha\ang the Fl. and upper part of Stalk webby 

 and nearly leafless, and the Fits, less slender. 

 Ziu'ich. 



acauli-bulbosum. L. of C. bulbosum. FL 

 of C. acaule. — N-^geli in Koch. 



25. acaule. Stem almost 0, usuaUy 1-flow- 

 ered. Root-L. stalked, oblong, pinnatifid, not 

 webby. Lobes dentato-spinose. PhyU. ovate, 

 smooth, adpressed, obtuse, but contracted into 

 a short mucro. Border of Cor. shorter than 

 the tube. p. 7, 8. Dry hills. 



p. StaUced. DC. refers hither Rozeni, 

 Vill., dubius, Willd., moUis, Vill., 

 Zizianum, Koch. 



hybrids. 



1. i'ivulari-acaule. L. of C. acaule, but less 

 deeply divided, with narrower segments and 

 larger spines. Inflorescence and Fl. of C. ri- 

 vulare, but the latter somewhat larger. Moist 

 mountain meadows. Sw. 



Another form differs from the caulescent 

 var. of C. acaule in having the L. and their 

 divisions somewhat narrower,'hardly any bracts, 

 and the border of Cor. at least as long as tube. 

 — NJ5GELI in Koch. 



2. heterophyllo-acaule . Habit of caules- 

 cent var. of C. acaide. L. less deeply divided 

 and somewhat webby beneath. Fl. of C. hete- 

 rophyllum, but larger, and vnth I or 2 bracts. 

 Zermatt, VaUais. 



Another form approaches more nearly to C. 

 acaule, but with webby stem, weaker spines, 

 and somewhat smaUer and narrower flowers. — 

 NiEGELi in Koch. 



