8 THE FLORA OF THE ALPS 



hooked ; Alps, Jura, Dauphiny, Pyrenees, Carpathians. R. 

 Traunfellneri, Hoppe; resembling the last, but beak of 

 fruit only curved, leaves more deeply cleft ; Tirol, Car- 

 niola, rare. R. crenatus, W.K. ; radical leaves entire, 

 serrate, petals roundish-ovate, beak of fruit curved ; 

 Styria. R. bilobus, Bert. ; radical leaves entire, crenate, 

 petals cuneate-ovate, beak hooked ; Southern Tirol, rare. 

 /. Petals 5, white ; aquatic plants (Batrachium) : Most 

 of the British species of Water Crowfoot, viz., R. aquatilis, 

 L., with its numerous sub-species ; fluitans, Lamk. ; cir- 

 cinatus, Sm., are found also in Switzerland. 



Tribe HELLEBORES. Sepals imbricate; fruit composed 

 of a few many-seeded follicles. Genera 8-17. 



8. CALTHA, L. 



Flowers regular ; sepals petaloid ; petals o. Not alpine. 

 Our English Marsh Marigold, C. palustris, L., is common 

 throughout Switzerland and the Pyrenees. 



9. TROLLIUS, L. 



Flowers regular; sepals 5-15, yellow; petals small, 

 entire. 



The beautiful Globe-flower, T. europ&us, L., a native 

 of our northern counties, is abundant in sub-alpine 

 pastures. 



10. ERANTHIS, L. 



Flowers regular; sepals petaloid, deciduous; petals 

 small, 2-lipped. 



The Winter Aconite, E. hyemalis, Salisb., with yellow 

 sepals and petals, occurs rarely in bushy places in Jura 

 and Vosges. 



