GYROPHORA. | GYROPHORET. 333 
A small form with the thallus pulvinate, polyphyllous, and the lobes nu- 
merous, congested, and variable at the margins. it is connected with the 
type by intermediate states, and is but rarely seen in its more charac- 
teristic form. Apparently it never occurs in fruit. 
Hab. On rocks in upland mountainous tracts—Diéstr, Found only (in 
a typical state) in W. and N. England.—B. M.: Arcoll Hill, Caer Ca- 
radoc, and The Wrekin, Shropshire ; Howden Gill, Cleveland, Yorkshire. 
9. G. flocculosa Turn. & Borr. Lich. Br. (1839) p. 217.—Thallus 
monophyllous or polyphyllous, moderate-or small, thin, opaque, sub- 
smooth or obsoletely papuloso-unequal, often more or less squamu- 
lose, reflexed at the margins, olive-black or blackish-brown, black 
furfuraceo-floccose ; beneath naked, subconcolorous, lacunose or im- 
presso-punctate (K7, CaCl a): Apothecia plane, thinly margined, 
at length convex, immarginate, usually only slightly complicate ; 
spores sometimes slightly curved, 0,018—27 mm. long, 0,007-9 mm. 
thick.—Cromb. Grevillea, xv. p. 79.—Gyrophora polyphylla 3. floc- 
culosa Mudd, Man. p.116. Umbilicaria flocculosa Cromb. Lich. 
Brit. p. 41; Leight. Lich. Fl. p. 156, ed. 3, p. 14d. Umbelicaria 
varia B. flocculosa Leight. Ann. Mag. Nat. Hist. ser. 2, xviii. p. 280, 
t.x. £4. Lichen floceulosus Wulf. in Jacq. Coll. iti. (1789) p. 99, 
t. i. f. 2. Gyrophora deusta (Linn.) Eng. Bot. t. 2488; Hook. Fl. 
Scot. ii. p. 42; Sm. Eng. Fl. v. p. 218; Gray, Nat. Arr. i. p. 478.— 
Brit. Exs.: Leight. n. 219. 
Though generally regarded as a variety of the preceding, the different 
characters of the thallus and the larger spores render it as distinct a 
species as most of the others in the genus. It may at once be recognized 
by the peculiar flocculose and usually more or Jess squamulose upper 
surface of the thallus, which is sometimes paler in colour, lacunose 
beneath (form brotera, Ach. Meth. p. 103), and occasionally in old plants 
becomes subcribrose at the margins. ‘The apothecia are extremely rare 
in Great Britain, and are sparingly visible only in one or two specimens. 
Hab. On rocks and walls in upland and subalpine districts.—Distr: 
Rather local in W., Central, and N. England, N. Wales, S. Scotland, and 
among the Grampians; not seen from Jreland.—B. M.: Whitwick Rocks, 
Leicestershire ; Caer Caradoc, Shropshire; Cader Idris and Cellfawr, 
near Barmouth, Merionethshire; Eglestone, Durham. New Galloway, 
Kirkcudbrightshire ; Pentland Hills, near Edinburgh; Achrosagan Hill, 
Appin, and Ben Cruachan, Argyleshire; Ben Lawers, Perthshire ; Clova, 
Forfarshire ; Glen Callater, Braemar, Aberdeenshire ; Ben Nevis, Lochaber, 
Inverness-shire. 
10. G. polyrrhiza Krb. Par. (1859) p. 41.—Thallus monophyllous 
or subpolyphyllous, small or nearly moderate, smooth, unequally 
lobed, crenate and undulate at the margins, greenish-copper-coloured ; 
beneath black, papilloso-granulose, reticulate, densely fibrilloso- 
pannose (K_, CaCl] reddish), Apothecia at first simple, orbicular or 
lirelleform, plane, immarginate, becoming at length convex and very 
much gyroso-complicate ; spores 0,008-11 mm. long, 0,004-5 mm. 
thick.—Mudd, Man. p. 119.—Umbihcaria polyrrhiza Cromb, Lich. 
