LICHINA. ] LICHINEL. 33 
Hab, Ou intertidal rocks, and on those which are only washed by 
the spray of the sea, in maritime districts. —Distr. General and very , 
abundant where it occurs on most of the rocky coasts of the Channel 
Islands, Great Britain, and Ireland; more frequent on the N.E. of 
Scotland.—B, M.: Islands of Jersey, Guernsey, and Alderney. White- 
sand Bay, Mount’s Bay, near Anthony, Gerrans, Land’s End, and Scilly 
Islands, Cornwall; Tenby, Pembrokeshire; Southerndown, Glamorgan- 
shire ; Barmouth, Merionethshire ; Puffin Island, Anglesea; Port Soderick, 
Isle of Man; Morecambe Bay, Westmoreland; St. Bees, Cumberland. 
Portlethen, Kincardineshire ; Island of Mull and Loch Creran, Argyle- 
shire, Kenmare, co. Kerry; coast of Connemara, co. Galway; Bally- 
castle, co. Antrim. 
9. LICHINIZA Nyl. Flora, 1881, p. 6.—Thallus minutely 
squamulose, squamules adnate, difform, chestnut-brown, with pro- 
minent darker globules or subglobose papille; gonimia sordid- 
yellowish, radiately arranged in the thalline globules in monili- 
form series. Apothecia lecanorine?, terminal. Spermogones not 
seen. 
Though differing in external appearance from the preceding genus, 
this nearly agrees with it in texture. This, however, as observed by 
Nylander, is cellular, thinner, and more irregular, while the gonimia 
are differently coloured. Its true place, in the absence of rightly developed 
apothecia and of the spermogones, is rather uncertain, though it is most 
probably allied to Lichina. 
, 
1. L. Kenmorensis Nyl. Flora, 1881, p. 6.—Apothecia minute, 
terminal on and concolorous with the thalline globules, lecanorine? ; 
“spores Sne, ellipsoid, simple, colourless.”—Cromb. Grevillea, x. 
p. 22.—Synalissa Kenmorensis Holl, M8. (1872). 
The thallus is effuse and apparently widely spreading. In the speci- 
mens seen by me only a single young apothecium was visible, similar in 
external appearance to the young apothecia of Lichina. Dr. Holl 
informed me that the spores were seen by him in a better-fruited spe- 
cimen, though not well developed. 
Hab. On moist mica-schist boulders in upland mountainous situa- 
tions.—Distr. Very local and rare, having been found only in one 
locality in the S. Grampians.—B. M.: Shores of Loch Tay, Kenmore, 
Perthshire. 
10. PTERYGIUM Nyl. Bull. Soc. Bot. i. (1854) p. 328; Syn. 
i. p. 92; Lich. Scand. p. 24.—Thallus appressed, thinly divided, 
radiate at the circumference, polished in section; gonimia 
often moniliformly concrete, arranged chiefly under the cortical 
layer; thin section of thallus bluish on the lower side. Apo-. 
thecia lecideine; spores 8ne, ellipsoid or oviform, septate, colour- 
less; hymenial gelatine, especially the thece, bluish with iodine. 
Spermogones with long jointed sterigmata and straight spermatia. 
D 
