vm EXPLANATOEY UEMAKKS, ETC. 



"Floeeose" is used to signify extremely short, soft, white, stellate 

 pubescence. 



In describing the involucre, the condition of that organ is given 

 ■when the florets are in perfection, except where otherwise stated. 



Eeliance must not be placed on the fulvous or tawny colour, or 

 whiteness of the hairs; as many species oi Sieracium, of which the 

 hairs are beautifully white and silky when fresh, become fulvous 

 after the lapse of time, when in a dried state. H. holosericeum and 

 others of the " alpinum group" frequently exhibit this change. 



The colour of the styles indicated in the description of each 

 species, refers excTmivdy to that of the living plant. The re- 

 tention or change of the original colour depends so much upon the 

 rapidity or otherwise of the process of drying, that characters drawn 

 from the colour of the style of dried specimens, are but little to be 

 relied upon. 



The term " sul-reticulate" or "falsely three veined," is employed 

 to designate that form of venation, in which each primary vein 

 (of which there are several springing successively from the midvein) 

 curves upwards before arriving at the margin of the leaf, and then 

 proceeding nearly parallel to it, anastomoses with the succeeding 

 primary vein; frequently forming in the upper part of the leaf two 

 lateral primary veins, imiting at the extremity with the central one. 



The term " reticulate" is used, when the veins are loosely netted 

 and branch off to the sides of the leaf, showing but little tendency to 

 form anything like a lateral vein running parallel with its margin. 



The names attached to specimens distributed hitherto, must 

 not necessarily be regarded as correct, according to my present 

 judgment, unless they agree with the characters described in this 

 work; as I consider the present treatise to supersede all articles 

 published respecting this genus to which my name has been annexed, 

 some of which have been printed without my concurrence. 



