Thai 



LICHENA1 . 





n the former, the stn 



• 

 itter whi 

 Their shell is thin and unaffected by iodine, i 

 ■ulphuric acid, which distends it without ■ '■ 

 —The 1 by .M. 'I 



h hero t of a million tre l< 



millimetre broad; only two or thr f th< 



pores, thai when 

 . the naked eye, and may even !"• counted, 

 ami the .1 vol. v. ;i . I - 



To the i] • ■ ies of Lichens poi 



ad affinis, whicl i Idenlj 



In Persia, Armenia, and Tartar] . they are eagerly i 









/iii 



""'iTf". <• . 







i wxui.--- 



fancy that they must fall from heaven, not knowing ; 

 prodigious numbers of these plants, of th of which they 



Pan that in some districts in Persia they cover the ground I 



five or six inches. Eversmann, wh i opportunity of studying ' : • 



the rivers Emba and Jaik, and also near Lake Aral, w is convii 

 earliest stage of growth, the plants have not th 



ud, but that their thallus is d< veloped freely, a 

 A species or variety has lately been found in large quantities in 

 Treviranus informs ue that specimi eed to I 



ut Arar I M Nal tory in 1 \ 



• s Lazzaro, in an island of that name near \ 

 question is eaten both by men and animals in th< 

 Algiers to Tartary, wl produced. The sheep, I 



in Algiers do not thrive, in consequence, it i 



of lime which it contains, amountin , 

 66 per cent The individual plants weigh fr 

 upwards, even when dry, and when swollen with 



Fig. XX Mil. • \ 1 noraesc 



