18 Clavarias of the United States and Canada 



12. Branches not ending in expanded saucers, and taste not peppery ; spores 



larger 13 



13. On wood of deciduous trees ; spores 3.8-4.4 x 7.5-9//... ..C. stricta (p. 162) 

 13. On wood of coniferous trees or on bark at their bases; spores 3.7-5.5 x 



7.4-10/* - - -C. apiculata (p. 157) 



C. pink ola (p. 161) 



13. As above but taste acrid and spores about 6-7 .4 //, long 



C. acris (p. 162 ) 



13. On twigs and small branches of deciduous trees or from leaves mixed 



with them; spores smooth, 2.9-4.2 x 10-1 5/x C. byssiseda (p. 152) 



14. Plant rather small, brownish, with a slender stem which extends into 



the leaves as a whitish root covered with long woolly hairs 



C. Murrilli (p. 190) 



14. Not as above 15 



15. Tips lavender, other parts creamy ochraceous. ...C. subdecurrens (p. 172) 



15. Tips not lavender 16 



16. Whitish when young, then delicate flesh color, the base pale ochraceous ; 



spores light yellowish ochraceous, smooth or nearly so, 3-3.3 x 4.8-6//, ; 



odor distinct, a medicinal fragrance - .C. gracilis (p. 169) 



16. Flesh color, in age tan or pale cinnamon ; odorless, taste bitter when 

 fresh and when dry ; flesh when dry very soft and chalky friable ; 

 spores light buffy ochraceous, minutely rough, 2.5-3.7 x 7.4-8//. 



C. succica (p. 168) 



16. Yellowish cinnamon or creamy ochraceous ; spores ochraceous 17 



17. Growing among rotting pine needles ; not showing green stains ; spores 



distinctly short-spinulose, 3.4-4 x 6.3-10//, 



C. abietina, form (p. 182) 



17. Growing among hemlock or spruce (and fir?) needles; spores minutely 

 warted, 3-3.7 x 5-8. 5/x. 



Showing green stains at least in age 



C. abietina, typical form (p. 179) 

 Not showing green stains.... C. abietina, flaccida form (p. 184) 



17. Growing on redwood needles in the Pacific states; small and delicate; 



spores minutely papillate, 2-2.2x3.5-4// C. myceliosa (p. 178) 



18. Flesh (at least below) gelatinous and translucent; taste of tobacco 



C. gelatinosa (p. 137) 

 18. Stem pale or clear lilac ; body smoky gray or smoky cinnamon when 



mature; spores cinnamon-buff ~C. fennica (p. 135) 



18. Tips of the branches rosy red, at least when young, and strongly con- 

 trasting with the pale bodv ; spores light buffy yellow 



C. botrytis (p. Ill ) 



18. Tips wine color (pale rosy vinaceous ) after early youth, then darker 

 vinaceous and finally dull brick-brown ; body light tan when fresh, 

 the stout stem often stained vinaceous rose ; spores striated, rod- 

 elliptic, about 3.3-4x11-13// C. rufescens (p. 139) 



