he ee One 
424 CYCLOCARPINE [CLADONIA 
Fl. Angl. p. 457 (1762); With. Arr. ed. 3, iv. p. 35. LL. alei- 
cornis Lightf. Fl. Scot. ii. p. 872 (1777) pro parte ; Engl. Bot. 
t. 1392. Cenomyce alcicornis Ach. Syn. Lich. p. 250 (1814); . 
Hook. Fl. Scot. ii. p. 62; Grev. Fl. Edin. p. 343. Seyphophora 
alcicornis S. F. Gray Nat. Arr. i. p. 418 (1821); Hook. in Sm. 
Engl. Fl. v. p. 238. 
Exsicc. Larb. Lich. Cesar. n. 56 & Lich. Cantab. n. 1 
Leight. n. 15; Mudd Clad. n, 1. 
Distinguished by the large yellowish-green congested squamules 
and by the black rhizinose fibrille which are present though not 
abundant on any part of the plant possibly in response to contact. 
The spermogones are frequently sessile on the squamules. A rare 
plant with slender lobes (f. gracilescens), found only once in S. Wales, 
has been referred by Wainio (Monogr. Clad. ii. p. 393) to the species 
as a sport or growth form. 
Hab. In dry sandy places amongst mosses and heaths in maritime 
and inland districts.—Distr. Rather uncommon throughout Great 
Britain and the Channel Islands, rare in S.W. Ireland.—B. M. Quen- 
vais, Jersey; Sark; L’Ancresse Bay, Guernsey; I. of Wight; Scilly 
Islands; Withiel, Cornwall; near Torquay, Devon; the Downs and’ 
near Brighton, Sussex; Romney Marsh, Lydd and West Wickham, 
Kent; Epping Forest, Essex; Charnwood Forest, Leicestershire ; 
Haughmond Hill, Shropshire; Barmouth, Merioneth; Lydstep, 
Pembrokeshire (f. gvacilescens); Malvern Hills, Worcestershire ; 
Aldgrove and Thetford Warren, Suffolk; Hunstanton, Norfolk; near 
Great Ayton, Cleveland, Yorkshire; Pentland Hills, Edinburgh ; 
Lismore, Argyll; Bay of Nigg, Kincardineshire ; Findhorn, Elginshire ; 
Glengariff, Cork. 
Var. firma Wain. Mon. Clad. Univ. ii. p. 400 (1894).— 
Thalline squamules large, laciniate, crowded and_ suberect, 
crenate especially at the apices and occasionally fibrillose, pale- 
or yellowish-green above, pale-yellowish or whitish or rarely rose- . 
coloured and white-suffused beneath; podetia small, seyphiferous. 
Apothecia more or less confluent, brown/+-Cladonia alcicornis 
var. firma Nyl. Syn. Lich. p. 191 (1860). C. firma Nyl. in Bot 
Zeit. xix. p. 352 (1861) pro parte ; Cromb. Monogr. i. p. 128 
(excl. f. gracilescens). 
Easice. Cromb. n. 122; Larb. Cesar. n. 57. 
Differs from the species in the more crowded upright growth o 
the less divided lacinie. 
Hab. On sandy soil and on the ground among rocks in maritime 
districts.—Distr. Local and scarce in the Channel Islands -and 
S. England—B. M. Noirmont Warren and Quenvais, Jersey ; 
Jerbourg, Le Gouffre and Icart Point, Guernsey; Chateau Point, 
Sark; Start Point, Devon; Brighton Downs and Newhaven, Sussex; 
Lydd, Kent. 
Var. endiviefolia Scher. Lich. Helv. Spic. p. 295 (1833).— 
Thallus lobes large and rigid, divided into long rather broad 
lacini generally crenulate at the apices, not fibrillose, usually 
yellowish beneath ; podetia small, simple, rather rare. Apothecia 
