94 ANNALS OF SCOTTISH NATURAL HISTORY 



does the " Revision," yet shows a considerable diversity in its group- 

 ing of the forms, and also in the extent of the " species " and 

 " varieties." Only an expert may venture to express personal views 

 on such a genus, hence the subjoined list follows " The British 

 Hieracia," as its author has had the advantage in its preparation 

 of considering the conclusions expressed in the other works named, 

 as well as extensive acquaintance with the genus in both nature and 

 herbaria, and much aid from experts in the study of the genus. 



HIERACIUM, L. 



Subgenus PILOSELLA, Rupp. 



H. Pilosella, Z. Except 11:2. 



var. concinnatum, F. J. Hanb., 90, 92. 

 var. nigrescens, Fr., 90, 107. 



f. atrichidium, Williams, 88. 

 var. Pseudopilosella, Ten., 90. 

 H. aurantiacum, L. A frequent outcast or escape, 72, 77, 79, 83, 



86-88, 92, 93, 95, 98, 99. 

 H. pratense, Tansc/i., 79, 82, 83, 95. May be native. 



Subgenus ARCHIERACIUM, Fr. 

 i. Cerinthoidea, Koch. 



H. anglicum, Fr., aggr., 72, 8 1 (?), 83 (?), 85-90, 91 (?), 92-94, 96- 

 99, 103-1 06, 108-1 1 1. 



rar. acutifolium, Backh., 88, 90, 92, 96, 104, 108. 



var. cerinthiforme, Backh., 88-90, 92, 97, 98, 99 (?), 109- 



iii. 

 var. longibracteatum, F. J. Hanb., 88-90, 93, 94, 97, 98, 



104, 105, 108-110. 

 H. langwellense, F. J. Hanb., 72, 89, 97, 98, 106, 107, 109. 



(Williams unites this with H. anglicum.} 



H. flocculosum, Backh., 77, 88-90, 92, 96 (?), 97, 98, 108, 112. 

 H. iricum, Fr., 72, 88-90, 92, 98, 104, 105, 108-111. 



2. Alpina, Fr. 



H. alpinum, L., given in "Top. Bot." for 88, 90, 92, 96-99, 104, 

 105, 1 08 ; and as H. melanocephalum from 94 in addition. 



var. insigne, Bab., 92. 

 H. holosericeum, Backh., 72, 73, 87-90, 92, 94, 96-98, 105, 106, 



1 1 8. 



H. eximium, Backh., 88-90, 92, 94, 96-98, 105, 106 (?), 107 (?), 

 108. 



var. tenellum, Backh., 88, 92, 94, 96, 97 (?), 98, 105. 

 H. calenduliflorum, Backh., 88-90, 92, 97, 98. 



