114 HIERACIUM MURDRUM VAR. PAGHYPHYLLUM. 



in TA7in. Trans., read April 3i-d, 1792, but the plant first appears 

 (as G, depauperata) in Curtis's Catalogue of 1783. 



From the above dates it appears probable that there was a 

 considerable interval between the completion of fasc. v. and the 

 commencement of fasc. vi. 



In Hooker's Botanical Miscellany, vol. i. p. 82, footnote, there 

 is a reference to a "new edition of the old series [of Fl. Londinensis] , 

 now completed in three volumes, with 432 plates." I have not 

 met with tbis. Was it anything more than a reprint ? 



W. A. Clarke. 



HIERACIUM MURORUM var. PACHYPHYLLUM, n. var. 

 By THE Rev. W. H. Purchas, M.A. 



The plant which I here attempt to describe has been known to 

 me for many years as an inhabitant of the carboniferous limestone 

 rocks on both the Herefordshire and Gloucestersbire sides of the Wye 

 Valley between Ross and Monmouth, and I have always been struck 

 by its difference from the more common green form of H. muronun 

 and others of the genus with which it grows in company. When 

 I submitted it to the late Mr. James Backhouse, soon after the 

 publication of his monograph, he named it H. caesium, the name by 

 which I and my friend the Rev. A. Ley continued to know it, and 

 by which we designated it in the Flora of Herefordshire. Of course 

 it has been latterly seen that the H. ctzsium of Fries is quite a 

 different tiling from the plant under notice, and since this Here- 

 fordshire and Gloucestershire plant could not be identified witli 

 any recognised British form, I have been in hopes that Mr. F. J. 

 Hanbury would undertake to describe and naine it; he has, however, 

 until lately preferred to place it unnamed under aggregate H. 

 vmroruiii, rather than risk the introduction of a needless name. 

 When, however, Dr. Elfstrand saw this plant last year in Mr. 

 Hanbury's collection, he decided that it was an unnamed form, and 

 Mr. Hanbury proposed the name which I have here adopted. 



Glaucous or caesious ; leaves nearly all radical, oblong-ovate or 

 broadly oblong, the earlier ones very blunt, almost retuse, later 

 ones more acute, all mucronate at the tip, cordate or hastate at the 

 base with one or more patent or descending teeth, nearly entire 

 upwards, but with a small mucro at the termination of each vein, 

 glaucous or Cfesious above, and glabrous ; in exposure thick and 

 with a smooth waxy surface ; underneath and on the margins 

 clothed with curled white bulbous-based hairs, and deeply stained 

 with purple, and with a deep purple marginal line. Petioles 

 shaggy with curled hairs. Stem erect, rather thick, branched 

 from about or generally from above the middle, often purplish 

 below, and with scattered fine white hairs near the base ; the 

 intermediate portion with prominent yellowish lines. Stem-leaves 

 usually none ; if present, one only, petiolate and placed low, 

 sometimes very narrow and pointed, or scarcely more than a 



