E. WAINIO, LICHEXES PROPE PITLEKAI COLLECTI. 13 



Trib. 2. Parinelieae. 



1. Alectoria. 



1. A. divergens (Ach.) Nyl., Syn. Lieh. I (1858 — 1860) 

 p. 278 pr. p. (excl. A. nigrescente), Lieh. Scand. (1861) p. 71, 

 Lieh. Lapp. Or. (1866) p. 112, Lieh. Middendorff. (Dr. 

 A. V. Middendorff 's Reise in den äussersten Norden und Osten 

 Sibiriens IV, 1867, Anh. VI, 1874) p. 2 (LVI), 4 (LVIII). 

 Enum. Lieh. Fret. Behr. (1888) p. 7, 44, 53, 62, 73; Th. Fr., 

 Lieh. Scand. (1871) p. 23; Almqu., Lieh. laktt. Sib. (Öf- 

 vers. K. Vet.-Ak. Förh., 1879, N:o 9) p. 37, 38, 41, 46, 50, 

 Lieh. Küst. Beringsm. (Vega-Exp. Vet. laktt. IV, 1887) p. 521, 

 522, 523, 528, 536, 541; Tuck., Syn. North. Am. Lieh. (1882) 

 p. 43; Hue, Add. Lieh. Eur. (1886) p. 38, Lieh. Exot. (1892) 

 p. 68, Lieh. Extr.-Eur. (1901) n. 176 bis; Stizenb., Alect. 

 (Ann. K. K. Naturh. Hofm. VII, 1892) p. 126; Cumm., Lieh. 

 Alaska (1904) p. 139. Cornicularia Ach., Meth. Lieh. (1803) 

 p. 23; Th. Fr., Lieh. Aret. (1860) p. 29, Lieh. Spitsb. (1867) 

 p. 10; Koerb.. Parerg. Lieh. (1865) p. 6; Deichm. Br. et 

 Groenl., Groenl. Lieh. -FL (Meddel. om Groenl. III, 1888) p. 465. 



F. typica Wain. 



Thallus KHO non reagens. Stratum eorticale exte- 

 rius obscuratum CaCl.Oo non reagens; stratum eorticale in- 

 terius albidum CaCLOo rubeseens et, addito KHO, adhuc 

 intensius rubeseens. Item etiam stratum medulläre laxis- 

 sime eontextum reagens. 



Supra terram arenosam et inter alios Hellenes prope 

 pagum Pitlekai. Ster. 



F. subnegans Wain. 



Thallus CaCloO.j solo non reagens, at, addito KHO, stra- 

 tum eorticale interius (albidum) et stratum medulläre laxis- 

 sime contextum rubeseentia. Thallus maculis albidis rotun- 

 datis et elongatis parvis paree instruetus. 



Supra terram arenosam prope pagum Tjapka. Ster. 



Var. subaculeata Wain. 



Thallus neque KHO, nee CaCl202, nee his reagentiis 

 unitis reagens. Habitu omnino similis f. typicae, at thallus 



