GENERIS SOLORIN^ ACH. 5 



planitiem in Europa ac in America descendentes atque ubiqu,o 

 infrequenter colleclre. In hoc opusculo, secundum naturam goni- 

 diorum in Ihallo vigenlium et eorum stratorum numerum in très 

 dividuntur sectiones. In prima, Pleurothea, stratum gonidiale 

 duplex, snperne gonidia chloroj^hycea ac inferne phycochroma- 

 c*^a complectcns ; in duabus aliis stratum gonidiale uniciim, in 

 secunda, SoJorinina, e gonidiis cyanophyceis ac in terlia, Eu- 

 solorina, e chlorophyceis cons-tans. 



Sectio I. — Pleurothea DN. 



Os!,ervaz. sulla trib. délie Pelligeree, 1851, p. 19, in Mem. real. 

 Arad. scienz. Tonno, ser. ?, t. XIII ; PeZ/idea sect. Pleurothea Ach. 

 Melhod. Lie/}.. (18J3), p. ?90. 



Gonidia supe)ne chlorrpJiycea, inferne nostocacea duplex 

 stratum sub cortice formantia. 



1. Solorina crocea Ach. 



Lichenogr. univ. (1810), p 149, et Sipiops. melhod. Lich., p. 8; 

 TuCK. Lich. New Engl , p. 21, et Synops. North Ameinc. Lich., 

 I, p. m ; Sch.ï;r. Enurt\. crilic. Lich. europ , p. 22 ; DN. Osserv. 

 trib Peltig., 1851, p. 19, tab.ii, fig. 17, in Afe?nor. real. Acad. scienz. 

 Torino, ser. 2, t. XII ; Nyl. Sy7iops melhod. Lich., t. I, p. 329, tab. 

 v[n, fig 40, et apud Hue Lich. e.xot.,n. 921, in Nouv. Arch. Mus. 

 3« ser., t. II, 1890; Th. Fr. Lich. arctoi, p. 48, in i4ct. reg. Soc, 

 scient. Upsal, ser. 3, t. III, 1860; v. Dalla ToRRE und v. Sarnth. 

 Flora gefilrst. Grafsch. Tirai, t. IV, 1902, Flecht. Tirol. p. 90; 

 Zahlbr. Ascolisch., p. 19?, apud Engl und Prantl Natiirlich. 

 Pflanzenfamil ; IIarm. Lich. France, Phyllod , p. 056, ac Zopf 

 Fleclitenstoffe, 1907, p 311. 



Lichen croceus L. Spec. plant. (1753), p. 1149, et Sowerb. Engl. 

 Botan., tab. 498. 



Peltigera crocea IIoffm Plant, lichenos., t II, 1794, p. 60, tab. xli, 

 fig. 2-4, et tab. XLii, tig. 4-5; DC. apud Lam. et DC. Flor. franc., 

 t. II, p. 407; ScH^R. Lich. hehet. SiAcileg., sect. I, 1823, p. 12, 

 sect. VI, p. 203, ac El, Fr. Lichenogr. europ. reform., p. 48. 



Peltidea crocea Ach. Melhod. Lich. (1803), p. 29, et Wahlenb. Flor. 

 lappon., p. 445. 



Exsiccata a me analomico examini subjecta : Peltigera crO' 



