BRITISH LLl'UKASl.B 



10. 



11 



12. 



13. 



14. 



Fruiting-spike short in proportion to tlie 



stom : terminal tooth of lower leaves xery 



ohtuse, broader than long 9. 



rruiting-s]:)ike verv dense ; teeth of up]-)er 



hracts bi-oad, ovate ; leaves and bracts dark 



green, thick in texture 2. J?, horealis. 



Frniting-spike less dense ; teeth of upper 



bracts lanceolate or subulate, acute, arista te : 



leaves and bracts thinner and greener 1. E. siricfa. 



Plant densely hair}" with long hairs B. E. laiifolia. 



J-'lant nearly glabrous 7. JH.foularnsis. 



Foliage hairy ; plant usually short, much 



branched from the base or nearly simple ; 



internodes short 4. E. cvrta. 



Foliage less hairy E. curia var. 



'^^(flahrcscens. 



Foliage glabrous or minutely setnlose 11. 



Stem Hz tall, internodes usually long ; teeth 



of upper leaves and bracts acute 12. 



Stem 3-6 cm. high, rarely more, internodes 



usually short ; leaves and often bracts with 



obtuse teeth 15. 



Branches ty])ically numerous, often compound ; 



leaves at the base of the branches longer 



than the bracts, spreading or deflexed ; 



internodes long 11. E. nemorosa. 



1 nternodes short E. nemorosa 



Leaves and bracts setulose. (Compare sub- [f. compacia. 



glabrous forms of E. curia approaching [var. ciliaia. 



E. nemorosa. ) E. nemorosa 



Branches none or few, rarely many 13. 



Corolla con.spicuous, violet ; leaves and bracts 



few, larger than in E. scoiica, patent, stem 



sim])le or slightly branched above [5. E. ccerulea.^ 



Corolla small, violet or lilac and white ; leaves 



and bracts smaller and more numerous 14. 



Stem wiry, dark purjjle, simple or with a few, 



rarely many, erect branches about the 



middle, corolla often dark violet ; leaves 



and bracts small, often nigrescent 13. E. gracilis. 



Cf)rolla larger, blue E. g7^acilis 



Stem usually paler, simple or with 1 or 2 [var. primaria. 



branches, rarely more ; corolla white or lilac 



and white ; foliage greener; bracts usually 



larger ; Howering-spike broader at the to]). 



apjjearing subcajjitate 14. E. scoiica. 



(Compare mountain forms of E. curia 



with long internodes.) 

 Flowers yellow or yellow and violet ; stem 



simple or with few branches 1 o. E. min ima. 



Flowers white or lilac and white 16. 



