208 N. BRYHN. 



Figg. 9 — 10. Sectio transversa folii medii (circiter 250/1). 



Fig. 11. Sectio costæ infra medium, ubi desistit pars vaginans folii 



(circiter 250/1). 

 Fig. 12. Sectio transversa partis vaginantis folii (circiter 250/1). 



11. 



Lichenes antarctici. 



Determinavit 

 Th M. Fries. 



Ad banc ordinem pertinentes plantæ, quas e terris antarc- 

 ticis reportavit cl. C. E. Borchgrevink, ad quatuor tantum species 

 pertinent. Quæ sunt: 



1. Usnea sulphurea (Koen.) Th. Fr. f. sphacelata (R. Br.) 

 Geikie-Land, alt. 300 — 2000 ped. supra mare. 

 Specimina ibi lecta unaquaque ratione, etiam sterilitate, cum 



forma arctica, in Kaiser Franz Josepbs Land, insubs Spetz- 

 bergensibus, Grœnlandia cet. crescente congruunt; a forma in 

 Cap Horn locisque vicinis obvia magis recedunt. 



2. Physcia stellaris (L.) Nyl. a. adpressa Tb. Fr. 

 Fragmenta miserrima, minutissima, steriba adfuere inter 



pulvinulos Lecanorce chrysoleucce in Geikie-Land 300 ped. 

 s. m. lectos. 



3. Caloplaca elegans (Link) Th. Fr. f. farda (Bab.) 

 Geikie-Land, 300 ped. s. m.; Lord Newnes Land, 20 



et. s. ped. 



4. Lecanora (Placodium) chrysoleuca (Sm.) Ach. 



ß. melanophthalma (DC.) Th. Fr. f. exsulans: tballo eximie 

 pulvinato, subtus palbdo; præterea ut in complicata Ach. 

 Geikie-Land, 300 ped. s. m. 



