104 LICHENACEL. [SPH 2ROPHORUS. 
This small genus is distinguished from other fruticulcse lichens by the 
thallus and apothecia. The fructification, though at first apparently 
pyrenocarpoid, is at length entirely as in this series. The black powder 
of the spores is easily rubbed off, so that it is sometimes not visible in 
herbaria specimens. 
1. S. compressus Ach. Meth. (1803) p. 135.—Thallus fruti- 
culose, erect, irregularly branched, whitish (K—, medulla I—); 
branches short, compressed, much divided, naked or more or less 
laterally and minutely fibrillose. Apothecia moderate, obligue, 
globoso-depressed; the receptacle lacero-dehiscent, or at length 
discoid and open; spores spherical, 0,007-11 mm. in diameter.— 
Hook. Fl. Scot. ii. p. 67; Sm. Eng. FI. v. p. 232; Gray, Nat. Arr. 
i. p. 487; Turn. & Borr. Lich. Br. p. 115; Mudd, Man. p. 264; 
Cromb. Lich. Brit. p. 15; Leight. Lich. Fl. p. 49, ed. 3, p. 48.— 
Lichen fragilis Huds. Fl. Angl. i. p. 460 pro parte ; Lightf. Fl. Scot. 
ii. p. 888 pro min. parte; Eng. Bot. t. 114. Coralloides alpinum 
coralline minoris facie Dill. Muse. 116, t. 17. f. 34c. Lechenoides 
non tubulosum, ramulis nigris scutellis terminatis Dill. in Ray Syn. 
ed. 3, 66. 13.— Brit. Exs.: Mudd, n. 254; Larb. Lich. Hb. n. 205; 
Dicks. Hort. Sic. n. 23. 
This, as observed by Turner and Borrer (J. c.), “is a singularly elegant 
and beautiful lichen in point both of shape and of colour, especially in its 
fertile state, when the striking whiteness of the thallus is relieved by the 
jetty black of the large open cistule.” In moist places the main branches 
are occasionally of a glaucous colour, and rarely, as stated by Lightfoot 
ic, ‘tinged with a bright-red colour” (becoming, however, darker 
when dry), “so as to resemble very strongly Corallina rubens Linn.” 
The compressed and normally whitish thallus and the oblique discoid 
apothecia distinguish it from the following species. The apothecia are 
but sparingly seen in British specimens, and the spermogones are seldom 
present. They are tuberculose and brownish-black, situated on the main 
branches, or more rarely on the apices of the fibrille, with spermatia 
ellipsoid, 0,003 mm. long, 0,001 mm. thick. 
Hah, On rocks and boulders in shady places in upland tracts.— Distr. 
General, though not common. in Great Britain; rarer in W. Ireland and 
the Channel Islands.—B. M.: Island of Guernsey. Tunbridge Wells, 
Kent; Ardingly, Sussex; Dartmoor, Devonshire; Cromford Moor, near 
Matlock, Derbyshire ; Craigforda, near Oswestry, Shropshire; Aberdovey 
and Cwm Bychan, Merionethshire ; Farndale, Yorkshire ; Teesdale, Dur- 
ham; Wark, Northumberland. New Galloway, Kirkeudbrightshire ; 
Pentland Hills, near Edinburgh ; Barcaldine, Lorne, Argyleshire ; the 
Trossachs and Loch Tay, Perthshire; Clova Mts., Forfarshire ; Countess- 
wells Wood, near Aberdeen; Lochaber, Inverness-shire. Turk Mt. and 
Cromaglown, co, Kerry ; Connemara, co. Galway. 
2. 8. coralloides Pers.Ust. Ann. i. (1794)p. 23.—Thallus unequally 
and somewhat loosely branched, suberect or ascending, greyish- 
white or reddish-brown (K —, medullaI+ bluish); brauches rounded, 
numerous, rather short, with compound lateral fibrille. Apothecia 
globose, moderate, the receptacle persistent, semi-globose and irre- 
gularly dehiscent above; spores spherical, 0,009-15 mm. in dia- 
