102 T1;AN8ACTI0N.S and PUOCKEDINGS of THK [Skss. lxvi. 



The only well-marked variety is V. egallicensis, 

 Worinsk. and Lehm., found in Greenland and Labrador, 

 which, however. Pax regards as a distinct species. 



24. P. FARINOSA, L. — Found all over Europe, except in 

 the most southerly parts. Small, commonly 10 to 

 20 cm. high, rarely taller; leaves obovate-oblong or 

 oblong, gradually narrowed into the petiole, white- 

 farinaceous beneath, denticulate or nearly entire ; scape 

 much longer than the leaves ; flowers shortly pedicellate, 

 flesh-coloured then lilac, more rarely purple or white ; 

 calyx teeth sub-obtuse, triangular ; corolla tube much 

 longer than the calyx. 



P. Warei, Stein, differs somewhat from the type in its 

 leaves, which are regularly crenulate-denticulate, and in its 

 dark violet flowers. 



Var. lepida, Duby, differs from the type only in being 

 destitute of farina. It appears not to have been found in 

 recent times on the north side of the chain of Alps. 



Var. cxigna, Velen., has its seeds pale instead of dark 

 brown, as in P. farinosa. The leaves in the young state 

 are on the under side sometimes quite covered with thinly 

 spread farina, which, however, disappears more or less 

 later ; sometimes it is altogether destitute of farina. Calyx 

 teeth acuminate. The plant is barely 12 cm. high. — From 

 Bulgaria. 



25. P. ScoTiCA, Hook. — In north of Scotland and in 

 Orkney. The distinguishing marks of this species, as 

 compared with P. farinosa, are broad, rounded calyx teeth ; 

 broad elliptical leaves, equally and finely cut on the 

 margin ; a short scape ; and dark violet flowers. Pax 

 regards this as a true species, but he holds P. Scotica, Blytt, 

 the Scandinavian plant, to be a form oi farinosa. 



Widmer remarks that the broad, rounded calyx teeth 

 are not found in all the Scottish specimens, and further 

 that they occur in occasional specimens oi farinosa from 

 widely different localities. As to the colour of the flowers, 

 he regards the dark violet colour as only a dark red, just 

 as the dark violet of P. Warei, Stein, is really in the living 

 plant a beautiful, intense red. Accordingly he does not 

 separate Scotica from farinosa. 



26. P. STRICTA, Hornem. — In northern Scandinavia, 



