722 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Notes on Cladonia.* — Bruce Fink deals in the present paper with 

 three species of Cladonia, all of them red-fruited. G. bacUlaris grows 

 on earth or on old logs or stumps usually in rather open and dry places. 

 G. macilenta has a similar habitat, and the two lichens are very much 

 alike ; but while the podetia of G. macilenta become yellow with iodine, 

 G. bacillaris gives no reaction. G. didyma, the third species, differs in 

 the character of the squamules, which are minute and laciniate. 



Lichen Vegetation of the Sarck Mountain in Swedish Lapland.t 



The lichens of this region have been worked out by Birger Nilson. 

 He classifies them into those that inhabit the higher altitudes and those 

 that are found on the plains, and also those that live on rocks or on the 

 ground. He found certain species on rocks under the snow and very 

 rarely exposed. These were poorly or abnormally developed, and seemed 

 to be very old plants. The list includes 288 species, a few of them new 

 to science. He has substituted Parmularia for the genus Flacodium, as 

 he does not consider the latter name satisfactory. 



Grecian Lichens. | — A. Zahlbriickner has determined a collection of 

 lichens made by Brilze in Greece, chiefly in Tinos and other islands of 

 the Cyclades, and in some of the Ionian islands. Tinos is composed of 

 granite and serpentine rocks ; the other localities are of chalk formation. 

 He finds that the lichen flora of Tinos resembles that of Constantinople 

 and Scutari. He concludes that a similar vegetation would be found all 

 round the coast of the ^gaean Sea. 



Bbitzelmayb, Max. — Die Gruppen der Cladonia pyxidata L. und CI. fim- 



briata L. (The groups of Cladonia pyxidata and 

 CI. fimhriata.) 



[The author has made a special study of the 

 chemical reactions of a number of related 

 forms.] 

 Beih. Bot. Centralhl., xxii. (1907) pp. 231-40. 



„ „ Neues aus den Lich. exs. aus Sud Bayern n. 742-847. 



(Novelties in the Lichen Exsiccata of South Bavaria.) 



Tcnn. cit., pp. 331-8 



Fink, Bruce — Further Notes on Cladonias. XI. Cladonia pyxidata and Cladonia 

 pityrea. 



[Descriptions of these species, and notes as to their locality, etc.] 



Bnjologist, x. (1907) pp. 57-60 (1 pL). 



Hareis, Carolyn W. — Lichens of the Adirondack Club Tract. 



[A list of 60 Lichens from Herkimer County, New York.] 



Bryologist, x. (1907) pp. 64-6. 



Zahlbrucknee, A. — Die Flechten der Deutschen Sudpolar Expedition, 1901-3. 



(Lichens of the German South Polar Expedition.) 



[Plants are described from Cape Verde Island, Ascension, Cape of Good 

 Hope, Kerguelen, Heard Island, and Gaussberg.) 



Deutsche Sud-Polar Expedition, 1901-3, viii. (Bot.) pp. 19-55, 



taf. iii.-v., 4to. Berlin : Reimers, 1906. 



See also Bot. Centralhl., cv. (1907) pp. 198-200. 



* Bryologist, x. (1907) pp. 77-9 (1 pi.). 



t Natwiss. Unters. Sarckgebirges in Schwedisch Lapplaud. Stockholm and 

 Berlin, 1907, iii. (Bot.) pp. 1-70. See also Bot. Centralbl., cv. (1907) pp. 309-11. 

 X Hedwigia, xlvii. (1907) pp. 60-5. 



