1913] The Ottawa Naturalist 117 



NEW AND OTHERWISE INTERESTING LICHENS FROM 

 VANCOUVER ISLAND AND THE ROCKY MOUNTAINS. 



By G. K. Merrill. 



Parmelia olivacea var. multisporum (Schneid.) Merl. Brvologist 

 XII, 4, 1909, p. 73. 



Alder trunks. Sidney, Vancouver Island; Prof. J. Maeoun. 

 Asci containing from eight to forty spores. The eight-spored 

 conditions absolutely inseparable from P. olivacea, and no 

 reason appears for giving the polysporous anomaly other 

 than a varietal rank. 



Lecanora (Callopisma) atrosanguinea sp. no v. 



Thallus effuse, thin, whitish or ashy, smooth or roughened, 

 K , C . Apothecia sessile, small (less than 1 mm.), at first 

 plane, then convex, opaque or shining, rounded or lobed, 

 sometimes connate or composite, often proliferous, margin 

 persistent, slightly elevated, concolorous with the blackened- 

 crimson disk. Spores 8, ellipsoid, the terminations acute, 

 polar-bilocular, 15-18 x 10-1 lju, hypothecium reddish, asci 

 ventricose, paraphyses distinct, slender, coherent, tips dark 

 or reddish-black, hymenium in section gives a violet or purple 

 reaction with K. 



Trunks of willows, alders and birches. Sidney, Vancouver 

 Island; Prof. J. Maeoun. Type in herbarium Merrill. 

 Differs from L. ferrugineum Pollinii, for which it might be 

 mistaken in the color of the apothecia, epruinose disk, and 

 the persistent and concolorous margin. 



Lecanora epibryon Ach. Syn. p. 155 (1814). 



L. subfusca b. hypnorum Schaer, of Tuckerman's Synopsis. 

 Humus and decayed mosses. Yoho Valley, British 

 Columbia; and mosses, Jumping Pound Creek, Athabasca; 

 Prof. J. Maeoun. 



The specimen from Yoho Valley is remarkable from afford- 

 ing a hvmenial reaction with Iodine like that of L. subfusca. 

 The apothecia are medium, disk somewhat convex, blackish, 

 with an inconspicuous fuscescent exciple. The apothecia of 

 the Athabascan plant are concave with an elevated exciple 

 similar in color to the thallus. 



Lecanora (Rinodina) exigua (Ach.) Nyl. Flora 1873, p. 197. 

 Rinodina sophodes e. exigua Fr. of Tuckerman's Synopsis. 

 Trunks of willows, maples, alders and Douglas fir. Sidney, 

 Vancouver Island; Prof. J. Maeoun. 



