12 



OTTO VERNON DARBISHIRE, 



(Schwed. Südpolar-Exp. 



tundatae, hyalinae, 4 — 5 u latae, 4- 5 a longae; spermogonia et soralia non visa. 

 Habitat ad corticem Nothofagi betuloidis, Tierra del Fnego, Ushuaia. 



Notes: This new species is very nearly related to the species which MÜLLER- 

 Arg. has described as Anzia angustata (Lieh. Beitr. Xo. 1503; Hue Lieh. Extra- 



Fig. 1. Pannoparmtlia anzioides. — Vertical section through thallus: a, the upper cortex; b, the gonidial 

 layer; c, the inner portion of the lower cortex; d, the outer portion of the lower cortex, which is con- 

 nected with the characteristic hypothallus, e. — Magnification about 760. 



europ. No. 210). Müller-Arg. divides the genus Anzia into two sub-genera. Both 

 of theses are characterized by having a very well developed hypothallus resembling 

 roughly that of the genus Pannaria. Of the two subgenera, Euanzia has poly- 

 sporous asci whereas Pannoparmelia has only eight spores in each ascus. In exa- 

 mining the hypothallus of our new species with its eight spores and comparing it 



