E. WAINIO, LICHENES PROPE PITLEKAI COLLECTI. »51 



lum, supra terram prostratoruni, inortuonini propc sinuni 

 Koljutschin. 



8. P. trochiscea Norm., Spec. Loc. Nat. (1868)" p. 

 365; Nyl., Enum. Lieh. Fret. Behr. (1888) p. 64. P. glo- 

 merata (Ach.) Schaer. *P. trochiscea Th. Fr., Lieh. Scand. 

 (1871) p. 315. P. glomerata v. trochiscea Stizenb., Ind. Lieh. 

 Hyperb. (Verb. St. Gall. Nat. Gesellsch., 1874—1876) p. 35. 



Thallus verruculoso-inaequalis aut sat laevigatus, tenuis, 

 albidus, KHO non reagens. Pseudostromata depresso-sub- 

 globosa, basi bene constricta, laevigata, vertice demum vulgo 

 leviter impresso, thallo concoloria, apothecia solitaria conti- 

 nentia aut raro 2 — 3 confluentia, KHO extus non reagentia, 

 intus leviter flaveseentia, disco nigricante. Asci ventricosi, 

 membrana aequaliter incrassata. Sporae 8:nae, distiehae, 

 membrana 0,006 — 0,004 millim. erassa, long. 0,060 — 0,100, 

 crass. 0,032 — 0,040 millim., subfusiformi-ellipsoideae aut ob- 

 longae, apicibus obtusis. Exosporium paullo tenuior, quam 

 endosporium, intus laevigatum. 



Ad plantas destructas prope sinum Koljutschin. Fert. 



Trib. 7. Theloschisteae. 

 1 . Xanthoria. 



1. X. polycarpa (Ehrh.) Wain. Lichen polycarpus 

 Ehrh., PI. Crypt. (1789) n. 137. 



*X. lychnea (Ach.) Wain., Lieh. Exp. Amdrup (1905) 

 p. 130. Parmelia candelaria "{. P. lychnea Ach., Meth. Lieh. 

 (1803) p. 187. Physcia hjchnea Nyl., Lieh. Middendorff. 

 (1874) p. 4., Enum. Lieh. Fret. Behr. (1888) p. 49; Stizenb., 

 Ind. Lieh. Hyperb. (1876) p. 21. Xanthoria lychnea Almc(U., 

 Lieh. laktt. Sibir. (1879) p. 32, 33, 36, 38, 40, 41, 43, 48, 49, 

 51, 56, Lieh. Kust. Beringsm. (1887) p. 524, 525, 526, 538; 

 Wain., Exp. Antaret..Belg. Lieh. (1903) p. 22. Physcia parie- 

 tina var. lychnea Deiehm. Branth, Lieh. Nov.-Zeml. (1885) 

 p. 74. Theloschistes lychneus Tuck., Syn. North Am. Lieh. 

 (1882) p. 50; Cumm., Lieh. Alaska (1904) p. 136. X. poly- 

 carpa V. lychnea Wain., Lieh. Sibir. Merid. (1896) p. 12. X. 

 controversa ß. pygmaea Th. Fr., Lieh. Aret. (1860) p. 68, Lieh. 

 Spitsb. (1867) p. 14; Deiehm. Branth etGroenl., Groenl. Lieh.- 

 Fl. (1888) p. 473. X. lychnea a. pygmaea Th. Fr., Lieh. 



