186 Acta Societatis pro Fauna et Flora fennica, VII. 



thalli. Sterigmata ramosa intricataque, 0,o o 4 — 0,o o 3 millim. crassa, 

 constricte articulata, cellulis superne depressis aut subglobosis. 

 Pycnoconidia oblonga, long. 0,o 3 — 0,o o 3 5, crass. O,ooi millim., 

 recta, apicibus rotundatis. 



2. Sticta. 



Schreb., Gen. Plant. II (1791) p. 768 pr. p.; Ach., Lich. Univ. (1810) p. 

 86 et 445 pr. p.; Del., Hist. Stict. (1825) p. 35 pr. p.; Fr., Lich. Eur. Ref. 

 (1831) p. 49 pr. p.; De Not., Osserv. Stict. (1851) p. 7 pr. p.; Tul., Mem. Lich. 

 (1852) p. 20 et 145 pr. p.; Mass., Mem. Lich. (1853) p. 27 pr. p.; Koerb., Syst, 

 Germ. (1855) p. 65 pr. p.; Linds., Mem. Sperm. (1859) p. 191 pr. p.; Nyl., 

 Syn. Lich. (1858—60) p. 351 pr. p.; Th. Fr., Gen. Heterolich. (1861) p. 57 pr. 

 p.; Schwcnd., Unters. Flecht. II (1863) p. 166 pr. p., tab. IX fig. 2, 3, 4, 7; Tuck., 

 Gen. Lich. (1872) p. 32 pr. p., Syn. North Am. (1882) p. 91 pr. p. Sticta 

 § 2. Leacosticta Bab. in Hook. Fl. Nov.-Zel. II (1855) p. 276 pr. maj. p. 

 Stictina Nyl., Syn. Lich. (1858 — 60) p. 333 pr. p. Stictina sect. Cyphellatae 

 Nyl., Consp. Stict. (1868) p. 4. Sticta sect. Cyphellatae Nyl., 1. c. p. 6. 



Thallus foliaceus, adscendens, superne et inferne strato cor- 

 ticali pseudo-parenchymatico obductus, inferne rhizinis et cyphellis 

 instructus. Stratum corticale superius ex hyphis verticalibus aut 

 subverticalibus formatum, series cellularum plures irregulariter 

 horizontales continens, loculis majusculis aut in seriebus summis 

 minoribus, parietibus (membranis) comparate sat tenuibus aut 

 modice incrassatis. Stratum medullare stuppeum, hyphis implexis, 

 crassitudine mediocribus (circ. 0,0 3 — 0,0 4 millim. crassis), mem- 

 branis tenuibus, lumine comparate sat lato. Stratum corticale 

 inferius e seriebus cellularum paucis formatum. Rhizinae ex hy- 

 phis constantes partim subsolitariis, partim fasciculatis et laxe co- 

 haerentibus, pro parte etiam connatis, apice vulgo liberis penicil- 

 latisque. Cyphellae urceolatae, fundo ex hyphis formato consti- 

 patis, conglutinatis, breviter cellulosis, apice in cyphelloblastos de- 

 mum decidentes constrictis. Cyphelloblasti simplices, decolores, 

 globosi, diam. circ. 0,oio — 0,004 millim., membrana laevigata aut 

 raro (in St. laevi Wainio) spinulosa instructi, verisimiliter fun- 

 ctione gemmarum conidiorumque praediti (quod autem experi- 

 mentiis adhuc investigatum non est). Gonidia palmellacca (pro- 

 tococcoidea aut forsan etiam pleurococcoidea) et flavovirescentia, 

 aut nostocacea (Uornet, Rech. Gon. Lich. p. 36) et cellulis cae- 

 ruleo-virescentibus vol glaucescentibus, in lilametita brevia, ad 



