LICHENS OF THE STATE OF WASHINGTON 25 



On rock or thin layer of moss or soil over rock : San Juan Co. : Turn 

 Island, 1928, 1991. Chelan Co.: Merritt, 2186, 1076. Yakima Co.: Satus 

 Road, 1054 ft., 1931, 1671a. Garfield Co.: Pomeroy, 1500 ft., 1940, 2734. 

 Upper Naches River Region, 1931, Grant (F). Whitman Co.: Pullman, 

 2550 ft., C. V. Piper 200 (W). 



11. GYALECTACEAE 



Thallus crustose, usually a thin layer sometimes disappearing within the 

 substratum, rudimentary, very seldom any differentiation into layers, 

 attached to substratum by rhizoids. Apothecia globose to disk shaped, 

 immersed to adnate; proper margin prominent, sometimes covered by the 

 thallus, thalline margin inconspicuous ; asci 6-many-spored ; spores hyaline, 

 nonseptate, 1 -many-septate, or muriform. 



Alga Trentepohlia, Phyllactidium, or rarely Scytonema. 



A. Spores 1-septate, usually on trees 15. Microphiale 



A. Spores muriform, usually on rocks. 16. Gyalecta 



15. Microphiale Zahlbr. in E. & P. Nat. Pfl. Teil. 1, Abt. 1 :125. 1907. 



Thallus crustose, usually a thin layer, sometimes disappearing within 

 the substratum, very rudimentary, with seldom any differentiation into 

 layers. Apothecia circular, adnate to sessile ; with thick proper margin and 

 a thin thalline one that disappears early ; hypothecium hyaline ; paraphyses 

 unbranched; asci 8-spored; spores hyaline, 1-septate. 



Alga Trentepohlia. 

 1. Microphiale lutea (Dicks.) Zahlbr. Sitzunb. Kais. Acad. Wiss. Math. 



Nat. Wien. Classe, 111, Abt. 1 : 393. 1902. Lichen luteus Dicks. Fasc. 



PI. Crypt. Brit. 1:11. 1785. Gyalecta lutea (Dicks.) Horn. 



Thallus greenish gray or light greenish olive (R), very thin and smooth 

 or somewhat thicker and scurfy. Apothecia small 0.5-1.0 mm. in diameter, 

 circular, adnate to sessile; disk, pinkish cinnamon (R), flesh color (R), or 

 pale yellow, flat to convex ; proper margin thick, lighter in color than the 

 disk; spores hyaline, fusiform-eUipsoid, 1-septate, 8.2-9.9 x 2.6-3.5 /a. 



On trees or decayed logs : San Juan Co. : Turn Island, 1928, 1992. 



16. Gyalecta Ach. Kgl. Vet.-Akad. Nya. Handl. 228. 1808. 



Thallus crustose, very thin layer, sometimes disappearing within the 

 substratum, rudimentary, very seldom any differentiation into layers. 

 Apothecia minute to small, at first urceolate, later opening or flattening out, 

 adnate to subsessile; proper margin prominent, sometimes surrounded by 

 an inconspicuous, soon disappearing thalline one; hypothecium hyaline; 

 paraphyses unbranched ; asci 8-spored ; spores hyaline, muriform. 



Alga Trentepohlia. 



1. Gyalecta jenensis (Batsch.) Zahlbr. Cat. Lich. Univ. 2: 720. 1924. 

 Peziza jenensis Batsch., Elench. Fung. Contin. prima, 219. 1786. 



