42 THE FLORA OF THE ALPS 



E. Capitules usually numerous, in terminal cymes; 

 involucral bracts in a single row, with one or two outer 

 rows : — H. humile, J acq. ; lacerum, Rent. ; Trachselia- 

 num, Christ ; ccesium, Fr. ; Schmidtii, Tausch. ; atratum, 

 Fr. ; rupicolum, Fr. ; alpestre, Griseb.; canescens, Schleich.; 

 porrectum, Fr. ; pseudoporrectum, Christ ; Epimedium, 

 Fr. ; jurassicum, Fr. ; macilentum, Fr. 



F. Root-stock without stolons ; radical leaves withered 

 at the time of flowering; stem leafy: — H. intybaceum, 

 Wulf ; valesiacum, Fr. ; macrocephalum, Hut. ; picroides, 

 Vill. ; ochroleucum, Schleich. ; valdepilosum, Vill. ; stric- 

 tum, Fr. ; perfoliatum, Frol. ; prenanthoides, Vill. ; denti- 

 culatum, Sm. ; umbellatum, L. ; gotkicum, Fr. 



Several of the common English species, which occur 

 also in Switzerland, are not mentioned in the above list ; 

 as H. murorum, L. (including pallidum, Fr.), nearly re- 

 lated to H. ccesium; H. sj/lvaticum, Fr. (including vul- 

 gatum, Fr., and tridentatum, Fr.), nearly related to 

 gothicum ; and H. boreale, Fr.' (sabaudum, Sm.). 



The number of species of Hieracium, named by Philippi 

 as natives of the Pyrenees is 3 1 ; the mountain species 

 are mostly the same as those of the Swiss Alps, but the 

 number of forms is not so large. 



68. Chlorocrepis, Griseb. 



Resembling Hieracium, but pappus white, soft, and 

 flexible. 



C. staticifolia, Griseb. (Hieracium. staticifolium, 

 Griseb.) ; flowers light yellow, capitules 1-3, stem leaf- 

 less, radical leaves bluish-green, glaucous, linear-lan- 

 ceolate ; Switzerland, Jura, Dauphiny. 



