COLLECTED DURING THE ENGLISH POLAR EXPEDITION. 361 



pothecio pallidiore (sordide infuscato), sporis paullo minoribus 

 (0-007-0-012 mm. longis, 0-004-0006 mm. crassis). 

 Summit of Cape Union ; a single specimen. 



69. Lecidea elata, Schcer. 



Winter-quarters of 'Alert ;' Polaris Bay ; Cape Sabine. 



70. Lecidea Dicksonii, Ach. 



Cape Union, altit. 1200 feet ; Cape Sabine; Alexandra Haven. 



71. Lecidea el.2eochroma {Ach.), (5. muscorum {Wulf.\ 

 Th. Fr. 



Alexandra Haven, on mosses. 



Var y. pilularts (Dav. ?), Th. Fr. Lick. Scand. p. 543. 



Forms on stones crusta obsoleta vel parum evoluta. Egerton 

 Valley ; Westward-Ho ! Valley, and other localities in the vicinity 

 of the winter-quarters of ' Alert ;' Discovery Bay ; Mount Ste- 

 phenson ; Polaris Bay (f. crusta alba, apotheciis planiusculis mar- 

 ginatis); Crossing Harbour. On naked clay at Polaris Bay. 

 Some specimens belong, or approach more or less, to the form 

 acrocyanea, Th. Fr. Lich. Scand. p. 547. 



On sandstone at Floeberg Beach is found a form very peculiar 

 in its habitus, crusta tartareo-amylacea, maculas vel valleculas for- 

 mante dispersas niveas ; apotheciis solitariis, confertis vel seriatim 

 conjunctis, demum convexis et varie tuberculato-repandis. Quite 

 similar to Z. lapicida f. seriata, Th. Fr. At the first sight the 

 apothecia resemble those of L. auriculata, Th. Fr. 



Obs. L. hansatica, Korb. Zw. Deutsch. Polarf. ii. p. 80, dif- 

 fers in no way from common forms of L. elceochroma y. pilularis, 

 except by a pale yellowish thallus, and cannot possibly be sepa- 

 rated as a species. It is not improbable that this tint of colour 

 was not to be found in the growing plant, but appeared during 

 its preservation in some moist place, which may easily happen, 

 especially on board ship. 



72. Lecidea crassipes {Th. Fr.), Nyl. 



Two apothecia on mosses from the winter-quarters of 'Alert/ 



73. Lecidea vorticosa (Flork.), Korb. 



Westward-Ho ! Valley ; Floeberg Beach ; Polaris Bay ; Cape 

 Sabine ; Alexandra Haven. 



74. Lecidea ctanea (Ach.), Th. Fr. 



Floeberg Beach ; Discovery Bay ; Polaris Bay. All the col* 



