1914] The Ottawa Naturalist. 35 



Lecidea latypiza Nvl. Obs. Pvr. Orient, Bull. Soc. Linne. de 

 Norm. 2 serie VII, p. 201 (1872). 



Rocks, Sidney. 



Diflfering from L. latypea only in the absence of reaction 



with Ca CI. 



It has also been collected in California and Washington. 



Lecidea confluens forma oxydata Leight. Lich. Fl. G. Brit. 

 Ed. Ill, p. 304 (1879). 



Schistose rocks, Sidney. 



Spores ellipsoid, 16-18 x 8-9 jj., hynienium hyaline, hypo- 



thecium dark-brown, paraphyses distinct, compacted, tips 



brown, hymenial gel, with I + deep-blue. 



Hypothallus little visible in our specimens. 



Unreported from America previously. 



Lecidea (Rhizocarpon) distincta Stiz. in Lich. Hyperb., p. 47 

 Rocks by the roadside, Sidney. 



Spores colorless, 4-loc. halonate 25-29 x 10-12 jx, eight, or 

 fewer, in the ascus, hypothecium and tips of the paraphyses 

 purplish-brown, hymenial gel, with I + blue or here and 

 there violet. 



This is one of the multifarious exhibits of the section 

 Rhizocarpon of Lecidea. In thalline characters it is similar 

 to many other species of the section and depends for its 

 specific standing wholly upon the hymenial characters. 

 Unreported previously from America. 



Xylographa hians Tuck. Syn. II, p. 113 (1888). 

 Dead wood, Sidney. 

 Hymenial gelatine with I + faint blue. 



Also detected in material sent by Mr. A. S. Foster from 

 Washington. 



Opegrapha betulina Sm. Engl. Bot. t. 2281 (1811). 

 Young trees, Sidney. 



Spores 2-4 locular, typically 4, halonate, 22-28 x 8-10 /x, 

 hypothecium brownish, paraphyses distinct, slender, not 

 coherent, tips brown, asci oblong or inflated-clavate, 

 hymenial gelatine with I + wine-red. 



Under the -synonym of O. atrorimalis Nyl., reported from 

 California, but little is known of the species in America. 



Opegrapha varia forma diaphora (Ach.) Nvl. Scand., p. 2 53 

 (1861). 



Various rough barks, Sidney. 

 Occurs in Washington on both smooth and rough barks. 



