CRYPTOGAMIA. ‘ALGAE Lichen.'Bl(2)\Crustateems, "13 
with TUBERCLES. 
if any, very thin, white or greyish. Tibertles numerous, some 
-with a thick bordérand a smiall cavity in the middle, others near- 
“ly flat, irregular and angular, from their compressing’ one’ an- 
other ; livid'in'the centre, others again raised, surrounded spiral- 
ly twice or thrice with a white or gtey border, and hardly any 
central part. Horrman. Tubercles the same pale brown colour 
within and without, Crust not remarkably thin; thicker than 
the shell of an egg; much cracked, Ina more-advanced state 
approaching to decay, the tubercles become darker on the sur- 
face, the crust loosens, swells into large granulations and some- 
times changes to » Our plant does not well accord with 
the descriptions of Linnzus nor of Hoffman.” 
On limestone rocks. [About Garthmeilio, sbandabety Mr. 
GrirriTH ; on. Whinstone, and on the summit of Rowley hill. ] 
L. Tubercles black brown, imbedded; nearly flat, com- compos'itus ' 
“pound, very irregular in shape ; not bordered : crust 
white, tessellated. 
PLaTE XXX1. f, 2. 
Tubercle white within; flatted'at the to x arcade 
-otherwise than by the cracking of the crust; a: to 10° or 
more, often crowded together so as to form 1 large a eee 
‘mass. Criétnear 1~10th of an inch in thickness. 9 
SS spec from Mr. Grirrira of Gam. On Granite. cas 
i ‘Tuberces ree fiat, on pedicles : crust t grey groan. fungifor'mis. 
> DileA4. 4. 
Crust very thin, Stkink Dnt... ~ = ge 
On rocks near Bishop’ s Castle, Shropsh. Lint. Ail? 
L. Tubercles brown, flattish ; mostly on fruit-stalks crust’ rufus 
_ greenish. : 
~~ Facq. coll. iv. 7. 3—Hoffm. enum. 8. 4—Dill. 14. x 
No fan crust for i its base, but numerous, as whitish 
‘leafits, whence arise grey green pedicles, ‘supporting a 
pale brown tubercles. Ditt. 
Heaths and ditch banks. Hampstead Heath. Dit. 
See ee ~ A, Oct.—March. 
Ly Tuberdles flesti-coloured, cohvex, on ‘pedicles: crust eficeto'rum 
whitish. 
* E, bot. 374—F1. dan. 1003. 2-Hoffm. e enum, 83 aire 14, 1- 
Mich, 59 ord. 35. a 
“Tabercles convex, on foot-stall, ‘wsembling, minute Apa. 
