CIADONIA.] CLADOXIEI. 127 



A. PHJEOCAllP^E. Apothecia brown or pale. 



a. Macrophyllince. Thallus foliaceo-lacinioee ; podetia usually 



little developed. 



1. C. endivisefolia Fr. Lich. Eur. (1831) p. 212. Thallus large 

 and rigid at the base ; lacinise multifid, long, flexuose, generally 

 crenulate at the rounded apices, yellowish or glaucous-green, beneath 

 pale straw-coloured or whitish ; podetia small, cylindrical, simple, 

 rarely irregularly scyphiferous, arising from the upper surface of 

 the laciniae (Kf-|- yellowish, K(CaCl)-|- deeper yellow). Apothecia 

 more or less confluent, pale or brown ; spores oblong, 0,011-13 mm. 

 long, 0,0035-0,004 mm. thick. Mudd, Man. p. 52; Brit. Clad, 

 p. 2; Cromb. Lich. Brit. p. 18 : Leight. Lich. Fl. p. 55, ed. 3, p. 53. 

 Scy phopliorus endivifolius Sm. Eng. Fl. v. p. 242; Gray, Nat. 

 Arr. i. p. 418. Cenomyce endivifoUa Hook. Fl. Scot. ii. p. 62. 

 Lichen endivifolius Dicks*. Crypt, fasc. iii. (1793) p. 17 ; With. Arr. 

 iv. p. 60 ; Eng. Bot. t. 2361. Brit. Exs. : Dicks. Hort. Sic. n. 24. 



The basal thallus is larger than in the other species, the laciniee being 

 often 1-2 inches long and J inch broad. The yellowish-green colour of 

 the upper and the paler yellow of the under surface, turned up in dry 

 weather, render this a beautiful plant. It varies in size, and the smaller 

 and more divided states are with difficulty distinguished from other 

 species. The apothecia are extremely rare and little developed in this 

 country. 



Hub. On dry sandy (usually calcareous) soil among mosses and short 

 grasses, chiefly in maritime districts. Distr. Local and scarce, in a few 

 localities in E". and S. England. B. M. : Hemsby, near Yarmouth, Suf- 

 folk ; Banstead Downs, Surrey ; Newhaven, Sussex (fruit). 



2. C. alcicornis Floerko, Clad. (1828) p. 23. Thallus somewhat 

 large and rigid at the base ; laciniae multifid, often almost palmately 

 divided, more or less blackish -fibrillose at the margins, glaucous- 

 green or yellowish, beneath whitish straw-coloured or nearly white ; 

 podetia arising from the upper surface of the laciniaD, small or 

 moderate, usually narrowly scyphiferous, scyphi cristate at the 

 margins (K , K(CaCl) + deep yellow). Apothecia often confluent, 

 brown ; spores as in the preceding species. Cromb. Lich. Brit, 

 p. 18 ; Leight. Lich. Fl. p. 59, ed. 3, p. 56. Cladonia endivicefolia 

 /?. alcicornis Mudd, Man. p. 52 ; Brit. Clad. p. 3. Scyphophorus 

 alcicornis Sm. Eng. Fl. v. p. 242 ; Gray, Nat. Arr. i. p. 418. Ceno- 

 myce alcicornis Hook. FL Scot. ii. p. 62. Lichen alcicornis Lightf. 

 Fl. Scot. ii. (1777) p. 872 pro parte ; Eng. Bot. t. 1392. Lichen 

 foliaceus Huds. Fl. Angl. p. 457 pro parte ; With. Arr. ed. 3, iv. 

 p. 35. Coralloides scypTiiforme, foliis alcicorniformibus cartilagi- 

 nosis Dill. Muse. 87, t. 14. f. 12 A. Lichenoides cartilaginosum, 

 tulvUs et pyxidulis exiyuis Dill, in Ray, Syn. ed. 3, 70. 38. Brit. 

 Exs. : Leight. n. 15; Mudd, Clad. n. 1 ; Larb. Caesar, n. 56. 



In its typical condition this may be distinguished from the preceding 

 by the more divided, narrower, and congested thallus, which is sometimes 

 1'ale rose -coloured beneath, and by the blackish fibrillose margins of the 



