so LICHENS OF THE STATE OF WASHINGTON 



below whitish, reticulated with very thick, light or dark brown veins, rhi- 

 zoids of same color. Apothecia 3.0-7,0 mm. across, round or oblong, revo- 

 lute, borne on the tips of narrow upright lobules, adnate ; disk brown, red- 

 dish brown, or blackish brown ; proper margin denticulate ; asci 8-spored ; 

 spores hyaline, acicular, straight to slightly curved, 3-7-septate, 42.9-49.5 

 X 3.3-4.0 fi. 



On soil, rock, and decaying logs : Kitsap Co. : Hidden Ranch near 

 Bremerton, 213 ft., 1931, 1727. Pierce Co.: Mt. Rainier, White River 

 Camp, 3000 ft., 1931, 1853; Berkeley Park, 6000 ft., 1931, 627. Chelan Co. : 

 Stehekin, 1140 ft., 1931, 1287. Whitman Co.: Tekoa Mountains, 2900 ft., 

 1931, 1589. King Co. : Seattle, 1891, A. M. Parker 53 (W). 



No very good distinguishing characters, the crisped edges help to 

 distinguish it from P. canina, which species it resembles rather closely. 



10. Peltigera scutata (Dicks.) Duby, Bot. Gall. 2:599. 1830. 

 Lichen scutatus Dicks., Fasc. PI. Crypt. Brit. 3 :18. 1793. 



Thallus grayish green or pale tawny brown, small, granular or scurfy, 

 lobes narrow, margins ascending, crenate to wavy, often well covered with 

 grayish green soredia, often involute ; below whitish or brown veins forming 

 close tomentum, always paler towards the margins, rhizoids pale at the 

 margins, dark brown near the center, very bushy. Apothecia small, 2.0-4.0 

 mm. across, round, sometimes revolute, borne on the tips of short lobules, 

 usually erect, adnate; disk reddish or blackish brown; proper margin 

 crenate; asci 8-spored; spores hyaline, acicular, 3-7-septate, 44.0-66.0 x 

 3.0-5.0 fx. 



On soil, decaying logs, trees or rarely on mossy rock : San Juan Co. : 

 San Juan Island, Pt. Caution, 1940, 3268; Orcas Island, Mt. Constitution, 

 2500 ft., 1928, 2012. Pacific Co. : Long Beach, 1928. Thurston Co. : Grand 

 Mound, 1940, 2949. Kitsap Co. : Hidden Ranch near Bremerton, 213 ft., 

 1931, 1731. Pierce Co. : Mt. Rainier, Moraine Trail, 3300 ft., 1940, 2997. 

 Kittitas Co.: Roslyn, 2800 ft., 1931, 899a. Klickitat Co.: Goldendale, 2000 

 ft., 1931, 1699. Clallam Co.: Port Angeles, Birds, 1914, Foster 2621 (W). 

 Thurston Co.: Gate, 1912, Foster 1942 (W). Spokane Co.: Spokane, 1929 

 ft., 1940, 2750. King Co.: Ronald's Bog, 1934, Sister Marion Loretta 

 (WTU). 



This species can be distinguished by the abundant grayish green, 

 sorediate margins. 



\\. Peltigera spuria (Ach.) DC, in Lam. and DC. Fl. Franc. 3rd ed., 

 1805. 



Lichen spurius Ach. Suec. Prodro. 159. 1798. Peltigera canina var. 

 spuria (Ach.) Schaer. 



Thallus pale greenish gray, reddish brown, or various shades of brown, 

 small, when dry stiff, and brittle, partially covered with trichomatic hyphae, 

 margins almost entire; below whitish, reticulated with white or brown 



