Haud paullum varians species; numerosas varietates suis 

 nominibus designavit Acharius (s tic toe era, ret us a, sore- 

 diifera), sed nimis inconstaiites sunt, nt verae formae sy- 

 stematicae habeantur; omnes has Th. Fries (1. c.) sub. var a. 

 vulgaris Korb. (1. c.) conjunxit. 



Obs. II. Hydrate kalico stratum corticale plus minus di- 

 stincte flavescit (vel vireseit) (KHO±). 



63. Evernia divaricata (L) Ach. 



Lich. Univ. (1810) pag. 441; Korb., Syst, lich. Germ. pag. 41; Ay, 

 Synops. lich. I pag. 285; Th. Fr., Lich. Scand. pag. 30; Wain., Lich. 

 e Caucaso et e penins. Taur. pag. 277; — Lichen divaricatus Linn., 

 Syst. Natur. (1767) pag. 713; - P a r m e 1 i a divaricata Ach., Meth. pag. 

 269; — P h y s c i a divaricata Srfam:. Knum. lich. pag. 12; — U s n e a 

 flacci da Hoffm.. Flor. Germ. 2, pag. 133; DC, Fl. Fr. 2, pag. 333. 



Icon.: Hoffm.. PI. lichen. 3, Tab. 67. tig. 1-2: Srhtmnl.. Unters. Taf. V. 

 fig. 6; Harm.. Catal.-Lorr. Tab. X. fin 11 (sporai: Mass., Mem. fiir <>'» ispo- 

 rae); Ay., 1. c. Tab. VIII, fig. 22. 



Exs.: Fr., Lich. Suec. n" 332: Funk. Fichtlgb. n" 202: Ih-snunihrs. n" 



n° 244; ilfas*., Lich. Ital. n" 22: //<>yv-, Fl. Fur. n" s:ir»: Fl. cxs. Austr.-Hnng. 

 n" 342; ZaM&r., Krypt. exs. n ( > 462: A'?//. ,<t AV>/.. Herb. lich. Fenniae n° 18. 



Statio: Ad arborum ramos in valle Musart in viciniis 

 Issyk-kul (Turkestania) leg. A. Re gel (1877). 



Obs. I. Thallo elongato (ad 25 cm. hmgo), prostrato vel 

 pendulo, lacunoso rugoso. Strato corticali transversim saepe 

 articulatim dirupto (Osneam quodammodo in memoriam revo- 

 cans). Soredia semper desunt, quod bonum discrimen ab Ever- 

 nia t ham node (Flot.) Am. praebet. Apothecia rara. 



Obs. II. Addito hydrate kalico thallus extus demum di- 

 lute flavescit (KH0±), vel immutatus manet (KH0=). 



Distrib. geogr. [n sylvis montanis totius fere Euro- 

 pae. In Imperio Rossico hucusque observata est: in Lapponia, 

 Pennia, provinces Balticis, Polonia, in penins. Taurica (ipse 

 legi), in Caucaso (Lojka, Alereenko. ips e ),mTiivke&tam&(Begel, 

 Frtissoc), iti Sibiria (Martin, tor i,,,,.) 



