200 LICHENACEI. [RAMALINA, © 
Hab, On rocks in maritime districts — Distr. Very local though plen- 
tiful where it occurs, in the Channel Islands and 8.W. England.—B. M.: 
Mont Orgueil, Island of Jersey. Near Land’s End and Penzance, Cornwall; 
St. Mary’s, Scilly. 
13. R. geniculata Hook. & Tayl. Lond. Journ. Bot, 1844, p. 655. 
—Thallus moderate or somewhat small, subrounded or subcom- 
pressed, smooth, or obsoletely longitudinally subnervose, ceespitosely 
and subfastigiately branched, pale or pale straw-coloured, often 
terebrate with scattered perforations, fistulose within; branches 
usually attenuate (medulla K—). Apothecia small, terminal or sub-. 
terminal, pale-testaceous or glaucous-white, the receptacle smooth 
or rugulose; spores oblong or fusiformi-oblong, straight (or obso- 
letely slightly curved), 0,009-0,015 mm. long, 0,004-7 mm. thick.. 
—Nyl. Bull. Soc. Linn. Normand. sér. 2, iv. p. 163; Cromb. Journ. 
Bot. 1876, p. 360; Leight. Lich. Fl. ed. 3, p. 90. 
Resembles R. pusilla Le Prév., a plant found in Portugal but not - 
reaching our Islands: it is distinguished by the cortical texture and the 
shining, smooth, and more freely divided thallus. To the following species 
also it presents several points of alliance. It is interesting as one of the 
exotic plants which extend to W. Ireland. In the British specimens the 
apothecia, which are appendiculate, are very sparingly present. 
Hab. On stems of shrubs (thorns) in maritime districts —Distr. Ex- 
tremely local and scarce in N.W. Ireland, though we may expect to find 
it in the S.W. also.—B, M.: Killery Bay, Connemara, co. Galway. 
14. R. minuscula Nyl. Bull. Soc. Linn. Normand. sér. 2, iv. 
(1870) p. 164.—Thallus small, subrounded, shining, soft, subpel- 
lucid, very finely longitudinally striatulate, ceespitosely branched, 
straw-coloured or pale straw-coloured, branches attenuato-ramulose 
(medulla K—). Apothecia small, terminal, plane or convex, yel- 
lowish flesh-coloured or glaucous, the receptacle smoothish beneath ; 
spores oblong or fusiformi-oblong, straight, 0,009-0,015 mm. long, 
0,004-6 mm. thick.—Cromb. Grevillea, vii. p. 142.—Ramalina 
caleavis f. minuscula Nyl. Sallsk. pro F. et Fl. Fenn. Forh. n. s. v. 
(1866) p. 114. 
This might be taken for a small, narrow state of R. fastigiata, or for a 
young condition of R. calicaris. It is, however, a very distinct species, 
differing from the preceding in the smaller and softer thallus, which is 
scarcely more than } inch in height; it occasionally presents small scat- 
tered oblong perforations. In British specimens the apothecia are very 
rare. 
Hab. On the branches of stunted larches, and erratic on rocks in 
a wooded mountainous district.— Distr. Very local and scarce, found only 
among the N. Grampians, Scotland.—B. M.: Craig Cluny, Braemar, 
Aberdeenshire. 
