DURIKG 



355 



the northern face of Cape Columbia. Thallus CaCI-. Gyro- 

 phora rugifera, NyL, scarcely differs from this variety. 



27. Gteophoea ebosa (Web.), Ach. 



Alexandra Haven ; a small, very miserable specimen. 



Obs. In Zw. Deutsch. Polarf. ii. p. 77, Prof. Korber describes 

 as new " Gyrophora Koldeweyi." However, this species depends 

 only on a perfectly erroneous observation. The thallus is indicated 

 as " csesio-cinerascens vel albicans," with the addition, " im 

 Alter der Flechte verfarben sich auf krankhafter Weise die an- 

 fangs schon blaulich-weissgrauen Thalluslappchen in Dunkel- 

 braune." On the contrary, this supposed species consists of 

 extremely small young specimens of G. erosa, which by lying 

 for a long time in w T ater mingled with ice*, have been for the most 

 part destroyed. The dark thallus is normal and still living, while 

 the white is quite dead and therefore u fragillimus, humectatus 

 flaccidus, mollissimus." The hypha> and gonidia in the darker 

 parts of the thallus are in a normal state ; but in the white the 

 hyphae are in complete dissolution, the gonidia discoloured, and 

 impossible to discern, etc. 



28. GTROPnORA HYPERBOKEA (Hoflkl.) /3. AECTICA (Ach.) y 



Mudd. 



(the 



diam., well developed, with apothecia) ; Cape York. 



29. Gyrophora proboscidea (L.), Ach. 

 Alexandra Haven, tolerably well developed. 



30. Gyrophora dtscolor, Th. Fr. Spitsb. p. 31. 



Summit of the Dean Mountains, at an altitude of 1350 feet 

 (the largest specimen 2 centims. in diam.) ; "Westward-Ho ! 

 Valley ; top of Cape Union ; Polaris Bay ; Cape Sabine ; Payer 

 Harbour (4*5 centims. in diam.); Cape York. Thallus CaCl = . 

 Pruits only very young. 



31. Caloplaca elegans (Link.) a. typica, Th. Fr. 



On rocks and (fragments) on mosses. Floeberg Beach ; Black- 

 Cliffs Bay ; Westward-Ho ! Valley ; Discovery Bay ; Mount Ste- 

 phenson ; Walrus Island, Pranklin-Pierce Bay (abundantly fruc- 

 tiferous); Brevoort Island ; Cape York, on bones. 



* It is mentioned as growing " an granitisehen, wie op sclieint vom Wasser 

 rundlich abgespultcn Steinen/' 



