168 LICHENS OF THE STATE OF WASHINGTON 



Lobes of the thallus much lacero-dissected, margins ascending, often 

 bearing numerous fibrils ; otherwise like the species. 



On trees and rocks: San Juan Co.: Brown Island, 1931, 2095. Yakima 

 Co.: Deadhorse Hill, 4000 ft., 1931, 958. 



3, Xanthoria candelaria var. pygmaea (Bory) Arn. Flora 67:244. 1884. 

 Parmelia parietina var. pygmaea Bory in Fries. Lich. Eur. Reform. 73. 



1831. 

 Theloschistes lychneus var. pygmaeus (Bory) Tuck. 

 Teloschistes candelarius var, pygmaeus (Bory) Fink. 



Thallus very small, suborbicular, somewhat cushion like, lobes ascend- 

 ing. Apothecia often numerous ; otherwise like the species. 



On trees and rocks : Wahkiakum Co. : Cathlamet, 1940, 2907. Kitsap 

 Co.: Hidden Ranch, near Bremerton, 213 ft., 1930, 1889. King Co.: 

 Woodinville, 1940, 3349. King Co. : Edgewood, 300 ft., 1940, 3084. Thur- 

 ston Co. : Grand Mound, 1940, 2952. Grant Co. : Blackrock Lake, 1929, 

 G. N. Jones 3049 (W). 



4. Xanthoria polycarpa (Hoffm.) Oliv. Rev. de Bot. 12: 96, 1894. 

 Lobaria polycarpa Hoffm. Deutschl. Fl. 2: 159. 1795. 

 Theloschistes poly carpus (Ehrh.) Tuck. 



Thallus apricot yellow (R) or apricot orange (R), foliose, small to 

 medium sized, suborbicular to irregular, consisting of many small, narrow, 

 much divided lobes, closely adnate or rarely ascending, margins smooth, 

 crenate ; below pale yellow or grayish white, bearing concolorous rhizoids 

 and marginal fibrils. Apothecia numerous, sometimes concealing the thallus, 

 1.0-3.0 mm. in diameter, subsessile to sessile; disk deep orange, concave to 

 flat ; thalline margin thin, crenulate, spores hyaline, ellipsoid, polar-bilocular, 

 11.0-16.0 X 6.0-8.0 II. Epithecium pinkish or purple with KOH. 



On trees and old wood : San Juan Co. : San Juan Island, English Camp, 

 1928, 2096. King Co. : Edgewood, 300 ft., 1931, 1824. Kittitas Co. : Easton, 

 2168 ft, 1931, 839. Chelan Co.: Wenatchee Lake, 1800 ft., 1931, 1067. 

 Douglas Co.: Upper Grand Coulee, 1550 ft., 1931, 1514. Whitman Co.: 

 Tekoa Mountains, 2900 ft., 1931, 1591. Wahkiakum Co.: Cathlamet, 1907, 

 Foster 487 (F). Clallam Co.: Sequim, /. M. Grant 199 (F). Thurston 

 Co.: Tenino, 1904, Frye 14 (F) ; Hamilton 1905, Foster (F). Whitman 

 Co.: Pullman, 1900, R. K. Beattie (F). 



The numerous apothecia make this rather an easy Xanthoria to identify. 

 It is widely distributed over the state. 



27. BUELLIACEAE 



Thallus crustose or rarely squamulose, entire or radiately lobed at the 

 margins, dorsi-ventral, little or no differentiation into layers, attached to 

 the substratum by hyphal rhizoids. Apothecia circular, scattered on the 

 surface of thallus, imbedded to adnate or sessile ; either proper or thalline 



