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Thallus plicate-rugose, the plicae erect, 1-2 mm. in height, more or less 

 reticulately disposed, the crests roughened. Apothecia and spores of the species. 

 On rocks, alt. 4,000 ft., Republic, Wash., No. 2362. 



Thallus similar in color to that of the species, or gray-pruinose, or at times 

 black. In our specimens the individual plants are small and the rugse extend to 

 the margins. I know of no previous American record for the form. 

 Lecanora {Callopisma) nivalis var, minor var. nov. 



Thallus as in the species. Apothecia small (about i mm.) congregated, 

 plane or slightly convex, disk orange or rusty-orange, without thalline border, 

 but the proper margin distinct and lighter in color than the disk. Spores linear- 

 oblong or narrow-ellipsoid, simple or with a thin central septum, 20 x 6-9 ix. 



On mosses over rocks. Republic, Wash. 



Differing from the species in color of the apothecia, shape and dimensions 

 of the spores. 



Type specimen in herb. Merrill. 

 Lecanora {Squamaria) rubina forma discreta, f. nov. 



Thallus of widely scattered, monophyllous, peltate, olive-green, black- 

 margined squamae. Apothecia small, crowded, completely concealing the 

 thallus, disk plane or concave, olive-green, glaucous-pruinose, with an entire, 

 more or less flexuous, slightly elevated margin. Spores ovoid or ellipsoid, simple, 

 II x 6-7/x, epithecium dark, asci sub-saccate. 



On rocks. Republic, Wash. 



Sharing characters with var. peltata Torsell, and nigromarginata of the 

 species, the plant also presents similarities to L. melanophthalma (Ram.) Nyl. 

 and its forma glauca (Ach.) Nyl. 



Type specimen in herb. Merrill. 

 Lecanora atrynea (Ach.) Nyl. Flora, 1872, p. 250, note 2. 



On rocks touched by the waves of Hoods Canal, Hoodsport, Wash., No. 

 2131. 



The habitat given for this specimen is exactly that of L. suhfusca campestris 

 as it occurs in Maine. Mr. Foster's specimen is without the white byssine hy- 

 pothallus of the Knox County plant, and seems best placed as above. The 

 species is almost unknown in this country. 



Lecanora (Dimelaena) trysasota (Tuck.) Hasse Lich. So. Calif., 1898, p. 11. 

 On granite. Republic, Wash., No. 2319a. 



Spores eight in each ascus, short-ellipsoid, sometimes slightly constricted 

 at the septum, brown 10-12 x S-g/j., hymenium and hypothecium hyaline, para- 

 physes indistinct, epithecium brownish, asci ventricose. 



Very little is known of this plant, and growing as it does among other dark 

 colored lichens on exposed rocks, it is easily overlooked. 



Reported from California and Oregon in Tuckerman's Synopsis, and Dr. 

 Hasse has found it in his region. 



Lecanora {Rinodina) Conradi (Koerb.) Nyl. Not. Sallsk. pro F. et Fl. Fenn. 

 Forh. XI, (1871), p. 182. 

 On mosses over rocks. Republic, Wash. 



