CRYPTOGAMIA ALGiE. ^^57 



This fpccies is readily known by the fine faffron 

 colour of the under fide of the haves. 



F. * Umbilicat!^ fqiiahntes quafi fudgwe. 



tainiaiiii 66 L. umbilicatus gibbus punftatus fubtus fulvus. Sp. 

 pi. i6i-]. (Haller. hift. fiirp. Helvet. Torn. 3. t. 

 47./. 2. Oeci. Dan. t. 532./. i. Dilien. t. 30. /. 

 127. o\n.^ 



Grey cloudy Lichen, tawny underneath. An^lh. 



On rocks frequent, both in the highlands and low- 

 lands, as in the king's park at Edinburgh^ &.c. 



This Lichen varies much in appearance : Fre- 

 quently it confifts only of a fimple leaf, of a 

 roundifii figure, froin the fize of a Ihilling to 

 .that of a crov/n-piece, fomevvhat concave on the 

 upper fide, and variouny v/aved or Icbed on the 

 n^argin. The iubllance coriaceous ; the colour 

 on the upper fide grey or cinereous, dotted al! 

 over with innumerable minute fufcous points •, 

 the under fide frnooch, or fiightly wrinkled, with- 

 out veins or fibres, of a tnwny colour, having 

 one root in the centre, by vvl^ich it grov,'S to the 

 rocks. 



Very often the leaf is divided to the centre, and 

 the lobes lie over one another, and are elcvared 

 and waved at the margins, lo that the plant 

 fcems to confift of many leaves, and bear^ a 

 fancied refemblancs to the cbuds lying over ana- 

 ther. 



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