354 PROF. T. M. FRIES ON THE LICHENS 



senting an abundance of small wax-coloured or finally yellowish- 

 brown points and verrucae, which are probably spermogonia, 

 though no spermatia are found in them. 



21. Physcia pulveeulenta (Schreb.) /3. muscigena (Aeh.), 



82° 27' 40" N. (well and typically developed, and also a forma 

 microphjlla, imbricata) ; Cape Union ; winter-quarters of ' Dis- 

 covery ; ' Polaris Bay (forma adeo angastifolia et albo-suffusa, ut 



pro P. ccesia haberi posset; K=); Walrus Island, Franklin- 

 Pierce Bay. 



22. Physcia stellaris (Z.) /3. trtbacia {Ach.), Nyl. 



On stone3 and destroyed vegetables, among other lichens, ste- 

 rile. Egerton Valley, Black-Cliffs Bay, Westward- Ho ! Valley, 

 and other localities in the vicinity of Ploeberg Beach ; "Walrus 

 Island, Franklin-Pierce Bay. — Laciniac ejusdem speciminis nunc 

 (soli expositae) obscuriores, grisese (K=), nunc albidse (K+). 



Var. y. marina, IS. Nyl. { Physcia leptaleodes, Nyl. Flora, 1874, 



+ 



p. 306). Winter-quarters of ' Discovery,' sterile. Thallus K 



23. Physcia cjesia (ITqfim.), Nyl. 



In the neighbourhood of the winter-quarters of ' Alert/ espe- 

 cially on sandstone, very well developed though sterile. Thallus 



K]T, but on the upperside scarcely changed. 



XANTHORIA PARLETItfA (i.) /3 



Walrus 



Sabine. 



25. Xanthoria lychnea (Ach.) a. pygmjea (Bor.), Th. Fr. 

 Sterile, on rocks ; Westward-Ho ! Valley; 82° 35' N. 



26. GrYROPnoRA CYLitfDRicA (X.), Ach. Apotheciis normaliter 

 gyroso-plicatis. 



Cape Sabine (one specimen, showing transition to var. /3). 



ft. simplex, Th. Fr. Spitsb. p. 32 (Gyrophora Tramnitziana. 

 Kerb. Deutsch. Polar/, ii. p. 76). Apotheciis simplicibus ?el 

 centro modo leviter papillatis, extus (excipulo) strato corticali 

 tectis ; sporis ellipsoideis, 0012 mm. longis et 0006-0007 

 mm. crassis. 



A luxuriant (11 centim. long) specimen from Cape Sabine; 

 another, somewhat smaller, but pretty well developed, from 



