246 CLADONIA. 



note of this species, but they finally disappear, when a rather 

 stouter lichen of California (Bolander) comes near. 



15. C. eenotea (Ach.) Schser. ; thallus squamulose, for the 

 most part Ill-exhibited, but the squamules at length elongated 

 and dissected, and the few scattering ones on the lower part of 

 the podetia stalked and acanthiform ; podetia longish ; dividing 

 dichotomously by repeated proliferation ; the at first smooth, 

 from pale-greenish at length dark-brown membranaceous epi- 

 dermis soon scurfy below, and passing above into a fine whitish 

 powder; the funnel-shaped axils and summits gaping, with in- 

 curved margins ; apothecia sessile; from flesh-coloured becom- 

 ing dark-brown. FL Clad. p. 125. Tuckerm. Lick. Exs. n. 



125. Cenomyce, Ach. Syn. p. 271. Cladonia brachiata, Fr. L. 

 E. p. 228. 



b. furcellata, Fr. ; podetia much elongated, slender, fruticu- 



lose, the summits subulate and forked. Fr. I. c. Tuckerm. 



Lick. exs. n. 126. 



On rotten logs, and on the earth among mosses. White 

 Mountains and coast of Massachusetts, Tuckerman Syn. N. E. 

 1848. b, on the earth in old pastures, Massachusetts, etc. 



16. C. squamosa, Hoffm. ; thallus foliaceous- squamulose, 

 soon elongated and much dissected ; podetia longish ; irregularly 

 at length much branched ; the soon granulate epidermis disap- 

 pearing at length in crowded, ashy-green squamules ; axils and 

 summits either dilated and funnel-shaped (f. ventricosa, Fr.) or 

 the slenderer podetia attenuate, with subulate summits (f. atten- 



uata, Fr. ) ; apothecia cymose, brown . Fr. L. E. p. 231 . Tuck- 



erm. Lich. exs. n. 30. Nyl. Scand. p. 57. 



On the earth, mossy rocks, and rotten logs, common in the 

 northern mountains, Tuckerman Syn. N. E. 1848. New Jersey, 

 Austin. Ohio, Miss Eiddlecome. Illinois, Hall. Lake Supe- 

 rior shores, Agassiz. Lake Winnipeg, Herb. Hook. North West 

 Coast, Herb. Hook. ; etc. North Carolina, Curtis. South Car- 

 olina and Tennessee, Ravenel. Alabama, Peters. Louisiana, 

 Hale. The southern specimens inferior and less typical, ex- 

 cept a small form (f. botryoides) sent from South Carolina and 

 Georgia, Eavenel-, and Louisiana, ifofe; with smoother, scarcely 

 squamulose podetia, and much of the look generally of C. Botry- 

 tis, for which it might be mistaken ; but the apothecia are 

 finally dark-brown. 



