LICHENS OF THE STATE OF WASHINGTON 145 



1. Nephromopsis ciliaris (Ach.) Hue, Nouv. Archiv. du Museum ser. 4, 



1 :216. 1899. 

 Cetraria ciliaris Ach. Lich. Univers. 508. 1810. 



Thallus buffy brown (R), mummy brown (R), grayish olive (R), or 

 light brownish oHve, cartilageneous-membranaceous, foliose, irregularly 

 pitted, often smooth and shiny, with scattered black tubercles, much di- 

 vided, lobes long and narrow, crowded, sinuate-laciniate, margins crenate, 

 bearing minute black or dark brown tubercules, and occasionally scattered 

 fibrils; below paler, lacunose, with a few scattered rhizoids, or numerous 

 rhizoids. Apothecia marginal, 2-8 mm. in diameter, sessile; disk hazel (R), 

 or chestnut-brown (R), often shiny, concave to convex; thalline margin 

 crenulate; spores hyaline, globose to subglobose, nonseptate, 4.0-7.0 fx in 

 diameter. 



On trees, fences, or soil : Pacific Co. : North Head, 1930, 457. San Juan 

 County : San Juan Island, English Camp, 1928, 2064. Island Co. : Whidbey 

 Island, 1931, 1774a. King Co.: Richmond Highlands, 300 ft., 572. Kittitas 

 Co.: Lake Cle Elum, 2200 ft., 1931, 890h. Wahkiakum Co.: Cathlamet, 

 1907, Foster 509 (F). Island Co.: Whidbey Island, Langley, 1920, /. M. 

 Grant 3025 (F). Clallam Co. : Dungeness, 1913, Foster 2549 (W). Wash- 

 ington Territory, Suksdorf 138 (T). 



The prominent dark brown or black tubercules characterize this species. 



2. Nephromopsis pallidula (Tuck.) Riddle, Bryol. 18:28. 1915. 

 Cetraria pallidula Tuck, in Riddle l.s.c. 



Thallus pale yellow or chartreuse yellow (R), foliose, cartilaginous, 

 rigid, lobes broad and rounded, irregularly rugose-wrinkled or somewhat 

 lacunose-reticulate, margin ascendant, crenate, with marginal or submar- 

 ginal black tubercles, medulla white ; below concolorous or paler, with a few 

 scattered rhizoids. Apothecia marginal, 3-5 mm, in diameter, sessile ; disk 

 hazel (R), concave; thalline margin yellow, crenate, finally becoming 

 tuberculate ; spores hyaline, globose, nonseptate, 4.0-6.0 /i, in diameter. 



On bark: Kittitas Co.: Lake Cle Elum, 2200 ft., 1931, 890. Yakima 

 Co. : Lodge Pole Pine Camp, 3500 ft., 1940, 3310 ; American River Camp, 

 2800 ft., 1931, 956. Washington Territory, Falcon Valley, 1881, C. G. 

 Pringle (W). Klickitat Co.: Goldendale, 1909, Foster 1182 (F), this 

 specimen determined as Cetraria corrugata Merrill Nov. sp. 



The yellow thallus with white medulla, and black tubercles, make this 

 a showy lichen. 



3. Nephromopsis platyphylla (Tuck.) Herre, Proc. Wash. Acad. Sci. 



12:210. 1910. 

 Cetraria platyphylla Tuck. Syn. N. Am. Lich. 1 :34. 1882. 



Thallus buffy-brown (R) or dark brown, foliose, cartilagineous, rigid, 

 rather thick, reticulate-lacunose, rough, tuberculate, not much divided, lobes 

 broad, tips rounded, ascendant, margins crenate or jagged, tuberculate; 



