34 The Ottawa Naturalist. [May 



Lecanora (Aspicilia) glaucomela Tuck. Gen., p. 118 (1872). 

 Alder trunks, Beaver Lake. 



Spores rounded, short-ellipsoid or ovoid, serially disposed 

 in cylindrical asci, hymeniuni and hypothecium without 

 color, the paraphyses distinct and lax. 



The thallus varies from greenish-ashy in the specimens from 

 Prof. Macoun to sordid-greenish-brown in examples from 

 Washington collected by Mr. A. S. Foster. Tuckerman was 

 inclined to make the present a sub-species of L. oculata, an 

 assumed relationship that no one but an arrant Sporologist 

 may assent to. 



BiATORA ATROFUscA Flot. in Hcpp. Exs. p. 268 (1857). 

 Bark of maples and Douglas fir, Sidney. 

 Spores oblong-ellipsoid 15-19 x 7-8 ^, hypotheciuin brown, 

 paraphyses distinct but coherent, tips thickened and brown, 

 hymenial gelatin with I + intense-blue. 



Thallus less developed than in the muscicoline conditions 

 collected in Maine, where it was found over rocks and about 

 the base of trees. Without question, Tuckerman united 

 the present with B. sauguineoatra, and the distribution cited 

 for that species must, in some part, represent the plant of 

 this note. 



Biatora (Biatorina) lenticularis (Ach.) comb. nov. forma 

 nigricans Arn. in Flora 1860, p. 14. 

 Rocks, Sidney. 



Spores ellipsoid or variously difform, bilocular, the epispore 

 distinct, 10-12x5-5.5/1, hymenium and hypothecium 

 hyaline, paraphyses distinct, more or less discrete, tips 

 enlarged and black, asci inflated-clavate or oblong, hymenial 

 gel. with I + sordid-blue. 

 Previously unrecorded from America. 



Lecidea latypea Ach. Method. Suppl., p. 10 (180,^). 

 Fragmental rocks, Sidney. 



Spores ellipsoid 15-18 x 8 /i, hymenium colorless, hypothe- 

 cium brown, paraphyses distinct, slightly discrete, tips 

 blue-green, asci ventricose, hymenial gel. with I + intense- 

 blue. 



Thalline reaction K + , C + orange-red. 



While resembling forms of L. parasema externally, the 

 internal characters preserve specific distinctness. 

 Macoun's Canadian list cites the plant from Newfoundland, 

 and it has since been collected in Alaska, California and 

 Washington. 



