EVERNTA. 39 



much- and at length long- and divaricately branched, and sub- 

 pendulous, with attenuate tips; lemon-coloured; the base at 

 length dilated and rigid ; apothecia sub-terminal, ample, appen- 

 diculate, at length much dilated; disk chestnut; margin entire, 

 or most commonly radiate. Spores short-ellipsoid, * mic. 

 Spermatia oblong, scarcely thickened a little, towards one end. 



Ach. L. U. p. 443. Fr. L. E. p. 23. Tuck. Exs. 53. 



CMorea, Nyl. Syn. I, p. 274. 



Trees, and also on fences. Pacific coast (Menzies), Tuckerm. 

 Syn. 1848. Rocky Mountains, reaching 10,000 feet of altitude; 

 and observed (infertile) in the Black Hills, Nebraska, Dr. Hayden. 



* * Medullary layer entirely cottony. 



3. E. furfuracea (L.) Mann; thallus tufted, erectish, or 

 prostrate and pendulous, compressed, sub-foliaceous, dichoto- 

 mously very much- and somewhat pinuately- and finally long- 

 lobed ; glaucous above and beset mostly with isidioid tubercles 

 passing into branchlets; below channelled and lacunose, pale, or 

 here and there black-spotted, or now mostly black ; apothecia 

 marginal, ample to large, sub-pedicellate; chestnut. Spores 

 short-ellipsoid, !j; "J mic. Spermatia a little thickened toward 



both of the acutish ends. Fr. L. E. p. 26. Tuck. Exs.. n. 



55. Nyl. Syn. I, p. 284. 



b. Cladonia, Tuckerm. ; smooth, very slender, the branches 

 compressed-terete above, but becoming channelled below, more 

 or less thyrsoid-eutangled. Syn. N. Eng. p. 12; Exs. n. 56. 



Trees, Northern States ; Halsey View, 1823. Southward, in 

 the mountains, Curtis; Eavenel. Texas, Dr. Parry. New 

 Mexico, Fendler. Mexico, Nylander. Our lichen scarcely 

 ever as wide-lobed as it occurs not uncommonly in Europe ; and 

 it is possibly also less blackened beneath. b, on high mount- 

 ains. White Mountains, Tuckerman. Mt. Whiteface, N. Y., 

 C. H. Peck. The fruticulose type is sufficiently marked in this 

 mountain form, which offers now scarcely a trace of difference in 

 the two surfaces of the thallus; but finally agrees with a in 

 everything but size, and the isidioid prolifications. 



4. E. prunastri (L.) Ach. : thallus tufted, erectish, or pendu- 

 lous, angulous-teretish, or flattened, and finally channelled below, 

 lacunose, dichotomously very much- or at length divaricately- 

 long-branched, more or less sorediate ; pale-greenish, or straw- 



