150 NEW LICHENS. 
ferior surface. The apothecia are much larger than the 
thallodal scales. 
5. L. humigena, Tayl. ; thalli substrato cuticuloso, gelatinoso, 
albido; verrucis sparsis, subhaemisphericis, minutissime 
tuberculatis, fuscis; gemmis granulatis, confertis, minutis, 
oblongis, subangularibus; apotheciis virescentibus, hemi- - 
phericis, subpellucidis, pallide brunneis, immarginatis, disco 
scabrido. : 
Has, On wet clay banks; Dunkerron ; County of Kennt 
Patches two inches wide, to the naked eye of an obscure - 
green, Warts exteriorly shining and dark brown, interiorly | 
pale and pellucid, very rugged, with opaque prominences, 
which are larger than the buds. Disc of the apothecia 
subrugose, pellucid, the lamina rather shallow, very pel- 
lucid, strongly striated, resting on pale brown pellucid 
cellular matter. This can scarcely be confounded with 
L. vernalis, Ach. On a gelatinous substratum are fixed 
both the warts and the buds, also unconnected, either 
of them, the apothecia. These, again, are without any 
margin; indeed without any distinct tunic to coe 
the lamina. _ : 
6. L. icterica, Tayl.; $: thallo pulverulento, citrino, tenuissimo, 
demum nigricante, substrato albo; apotheciis numerosis, 
minutis, sparsis, vitellinis, disco NOTORIETY i 
pallidiori, integro. - SHE 
Has. On dimestons y. Dunkerron ; county. of Kent ae 
in pale gior, soft, thin, powdery | ! 
le to Lichen erythrellus, Jue : 
= us, however, i is much thinner, more 5 
3 livelier yellow colour, and is bordered by the whi | 
(0 jeeting. substratum ; the sporbecin are vis s more m 
ET (Watched for more than t year 
sae characters. - : 
niti, planis, su x rotu 
