228 SUB-ALPINE PLANTS 



Dry, stony places in sub-alpine valleys. June to September. 

 It ascends to 6600 feet near Lanslebourg in Southern Savoy. 



Distribution. Alps, Jura, Pyrenees, Cevennes, Auvergne ; Central 

 Europe. 



ERINUS L. 

 Erinus alpinus L. 



The only species. A small tufted, creeping plant. Leaves 

 spathulate, serrate or crenate ; stem-leaves alternate, usually 

 hairy. Flowers in terminal corymbs, rose-coloured (very variable). 

 Corolla saucer-shaped, nearly regular, with 5 emarginate lobes and 

 slender tube. 



Rocky Alpine and sub-alpine pastures, dry beds of streams, rocks 

 and walls, descending to the plains in both Switzerland and Savoy. 

 May to October. 



Distribution. Central and Western Alps, Jura, Cevennes, 

 Corbieres, Pyrenees, Spain, Sardinia, Balearic Isles, Algeria. 



DIGITALIS L. Foxglove. 



Flowers in long terminal racemes, large, purple or yellow, rarely 

 white. Corolla campanulate or ventricose, with bearded throat. 

 Stigma 2-lobed. Capsule oval-acuminate, with 2 cells. 



About 1 8 species inhabiting Europe, S. Africa, and Central and 

 Western Asia. 



Digitalis grandiflora All. (D. ambigua L.). (Plate XXVII.) 

 2-3 feet high. Leaves oblong-lanceolate, serrulate, ciliate. 



Corolla broadly campanulate, large, glandular - pubescent, dull 



yellow or yellow-ochre, with brown veins within. Sepals lanceolate, 



acute. 



Woods and bushy, rocky places in the Alps and sub-Alps. June 



to September. Very common on the limestone about Engelberg. 

 Distribution. Alps, Pyrenees, Jura, Ardennes, Vosges. Europe 



from Belgium and Spain to Russia and West Siberia. 



Digitalis lutea L. (Plate XXVII.) 



1-3 feet high, usually glabrous. Leaves lanceolate, shining, 

 glabrous on both sides, finely serrated, the lower ones shortly 

 petioled ; upper leaves sessile and rounded at the base. Flowers 

 pale lemon-yellow, neither veined nor spotted, in a long, compact, 

 tapering, unilateral raceme. Flowers much smaller than the last. 

 Calyx-lobes linear-lanceolate. Capsule ovoid, conic, glabrescent. 



Woods and bushy, stony places in sub-alpine districts ; common. 

 June to August. 



Distribution. Central Europe, from Belgium and Spain to 

 Hungary and Galicia ; Morocco. 



The Purple Foxglove (D. purpurea L.) does not grow in Switzer- 



