106 THE JOURNAL OF BOTANY 
half of them have been published -as species in or since 1872; H. 
crebridens Dahlst. ms. i i 
il. nn. 65, 66, and xiii. n. 58, and the London Catalogue number 
being 952n, H. murorum var. crebridens Dablst. Other novelties 
are H. pseudopilosella Tenore, var. atrichidium Williams, p. 98; H. 
Pictorum E. F. Linton, var. Breadalbanense Williams, p. 180; and 
- levigatum Willd., subsp. phyllopodioides Williams, var. gothicwm 
; 166. 
P 
Oreadea to the Cerinthoidea and placed under H. anglicum Fries ; 
rum b. 
945 b, becomes H. bifidum var. anguinum Williams. H. zetlandicum 
Beeby, Lond. Cat. n. 982, is removed from the group Alpestria to 
the section Vulgata, subsection Bifida, on account of the colour of 
‘ . centri- 
petale Hanb., Lond. Cat. n. 912, is removed from the group Alpina 
Nigrescentia to a subsection, Trichopetala, of the section Vulgata. 
H, submurorum Lindeb., Lond. Cat. n. 918, is removed from the 
Alpina to a subsection, Silvatica, of the section Vulgata. There are 
several other systematic changes, including the sinking of species, 
as treated in the London Catalogue, into varieties, and conversely 
the erage of varieties into species. 
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_ prove serviceable for systematic purposes; in the instances given 
the numbers, arranged in ascending series, are as follows :— 
24 in H. Backhousei Hanb. 
25 in H. petiolatum Elfstr., H. lingulatum Backh., and H. hypo- 
cheroides Gibs. 
80 in H. surreianum Hanb., H. Dewari Syme, H. pulchellum 
Lindeb., H. perthense Williams, and H. levigatum Willd. var. 
gothicum Zahn. 
82 in H. cymbifolium Purchas. 
3 in H. nigrescens Willd. var. gracilifolium Hanb. 
85 in H. clovense BH. F. Lint., and H. aggregatum Backh, var. 
prolongatum Hanb. 
45 in H. rigidum Fries. 
50 in H. aggregatum Backh. (typical form). 
55 in H. holophyllum W. R. Lint. 
75 in H. crebridens Dahlst. 
As regards the geographical distribution, 80 ies appear to 
occur in Scotland, but not in England or aay 15 an both 
