68 LICHENS OF THE STATE OF WASHINGTON 



Scoliciosporum molle f. albescens Krumphbr. Denkschr. Kgl. Bayer. 

 Bot. Gesellsch. 4:pars, 2:207. 1861. 



Thallus pale yellowish white or greenish gray, not always very dis- 

 tinct, thin, granulose or powdery. Apothecia circular, 0.3-0.7 mm. in diam- 

 eter, adnate or sessile; disk waxy brown, pale flesh color (R), or salmon 

 color (R), flat to convex; proper margin finally disappearing; hypothe- 

 cium hyaHne; paraphyses coherent, with knob-like tips; asci 8-spored; 

 spores hyaline, acicular, 3 -many-septate, septa often obscure, 20.0-44.0 x 

 1.2-2.0 IX. 



On trees: Whatcom Co. : 1914, A. C. Herre (F). 



4. Bacidia luteola (Schrad.) Mudd, Manual Brit. Lich. 183. 1861. 

 Lichen luteolus Schrad. Spicil. Fl. Ger. 85. 1794. 

 Biatora rubella (Ehrh.) Rabh. 



Thallus granulose or scurfy sometimes disappearing, white, pale yel- 

 low, or greenish gray. Apothecia circular, 0.5-1.2 mm. in diameter, adnate 

 or sessile; disk ochraceous-salmon (R), reddish yellow or reddish brown, 

 sometimes obscurely white-pruinose, flat to convex, proper margin thin, 

 finally disappearing ; hypothecium pale or yellowish brown ; paraphyses 

 loosely coherent, slender; asci 8-spored; spores hyaline, acicular, 5 -many- 

 septate, 45-60 X 2-4 fx. 



On trees : Washington Territory, Suksdorj 297 ( S ) . 



35. Toninia Mass. Richerch. Anton. Lich. 107. 1852. 



Thallus crustose, squamulose, or subfoliose, inflated and subpedicellate, 

 marginally lobed, thin gelatinized upper cortex, rather distinct algal and 

 medullary layers. Apothecia circular, adnate to sessile ; proper margin vari- 

 ously colored; hypothecium light or dark; paraphyses free or coherent, 

 unbranched, tips often knob-like; asci 8-spored; spores hyaline, 1-7- or 

 rarely more septate. 



Alga Protococcus. 



A. Spores 3-septate; thallus often a grayish white crust 1. T. aromatica 



A. Spores 3-many-septate ; thallus never a grayish white crust. 

 B. Disk concave, papillate; squamules with a stem-like projection. 



2. T. caulescens 

 B. Disk flat to convex, not papillate ; squamules without a stem-like 

 projection. 

 C. Squamules usually tawny brown, coarsely reticulated and pitted. 



3. T. ruginosa 

 C. Squamules usually citrine-drab (R), neither reticulated nor pitted. 



4. T. sqiiarrosa 

 1. Toninia aromatica (Turn.) Fram. Lich. 4. 1855. 



Lichen aromaticus Turn, in Sm. and Sowerb. Eng. Bot. 25: tab. 1777. 



1807. 



Lecidea aromatica Turn. 



