^44 CRYPTCGAMIA ALG.S. 



upper Cide of the flilclds, or their back part, is 

 ot the fame colour as the leaves, and wrinkled. 



Other fpecimcns, deHitute of fhields have the 

 margins of their leaves crifped and farinaceous, 

 and fometlmes their difc is alfo covered Vvith fa- 

 rinaceous warts. 



This is probably one of the fexes, as the fubftancc 



and colour of the leaves prove it to be only z 



variety of the fame fpecies. See Dilknius's 



figures of the plant in this ftate, biji. mujc, t. 28. 



/. 105, B. C. 



vtnojus ^6. L, coriaceus repens ovatus planus, fubt^js venofus 

 villofus, peltis marginalibus horizontalibus. Sp. 

 pi. 1615. {Dillen. mufc. i. 28 . /. 109. Michel, 

 gen. /. 44- ord. 12./. 3 ^ 5.J 



Little dark-vein'd Lichen. A'ngiis. 



We owe the difcovery of this to the diligent re- 

 fearchcs of Dr. Burgefs., who found it on moiff 

 rocks, and under fhady brows in fevcral parts of 

 Glenkill Linn and Glenkill-Burn, in the parifh of 

 Kirkmichael, in Dumfriejlnre. Elfewhere he in- 

 forms me he has never yet feen it. 



The leaves are about half an inch long, flat, 

 fmooth, and wedge- Ihap'd, or dilated f om the 

 bafc towards the extremity, commonly entire on 

 the edges, but fometimes divided into a few fliorc 

 obtrrfe lobes. I'htir -upper furfacc, whde frefh. 

 Is of of a fine green \ when dry, of an afh-co- 

 lour. Their under fide is white, reticulated 



with 



