SPHINCTRINA.] 



85 



England, though no doubt overlooked elsewhere. B. M. : Rozel, Island 

 of Jersey. Near Brockenhurst, New Forest, Hampshire. 



4. S. Kylemoriensis Cromb. Journ. Bot. 1882, p. 274. Thallus 

 none proper. Apothecia minute, very shortly stipitate or subsessile, 

 the stipes slender, pale ; capitulum turbinato-globose, black or 

 blackish, somewhat shining ; spores simple, globulose, dark-brown, 

 0,004-6 mm. in diameter ; hymenial gelatine pale bluish and then 

 sordid with iodine. Calicium Kylemoriense Larb. ex Leight. Linn. 

 Trans, n. ser. Bot. 1878, p. 242, t. 23. ff. 12-14; Lich. Fl. ed. 3, 

 p. 42. 



This "very beautiful new species" (Leight.) is intimately allied to 

 S. lurbinata, from which it differs merely in the paler (though often con- 

 colorous) stipes, the smaller capitulum and spores, as also in the saxi- 

 colous habitat. It is probably not a distinct species. 



Hab. On rocks in maritime tracts. Parasitic on the thalli of Lecanora 

 parella and L. nitens. Distr. Local and rare, in the Channel Islands and 

 in N.W. Ireland. B. M. : Island of Sark. Kylernore, co. Galway. 



21. CALICIUM Pers. Ust. Ann. Bot. vii. (1794) p. 20; Nyl. 

 Syn. i. p. 145. Thallus thin, grauulose, pulverulent or evanescent, 

 very rarely squamulose, or none proper. Apothecia stipitate, rarely 

 subsessile, black; capitulum globose or turbinate; thecae evanescent; 

 sporal mass umbrine or black ; spores spherical, ellipsoid or oblong, 

 simple or septate, brown or blackish ; hymenial gelatine rarely 

 tinged with iodine. Spermogones with short, oblong spermatia. 



as by the stipitate apothecia, the genus is distinguished from Sphinctrina. 

 For the most part the plants spread extensively over the substratum, 

 though the thallus often becomes evanescent. It is divided into two 

 subgeiiera, founded on the character of the gonidia. 



Subgen. ALLODIUM Nyl. Flora, 

 1880, p. 392. Thallus with cylindrical 

 gonidimia ; spores spherical, simple, 

 brownish, sporal mass umbrine. 



1. C. trichiale Ach. Lich. Univ. 

 (1810) p. 242. Thallus thinnish, 

 minutely granuloso-squamulose, grey- 

 ish-yellow or greyish-glaucous (K ). 

 Apothecia somewhat small, scattered 

 or crowded, stipes usually slender, 

 black ; capitulum globoso-lenticular, 

 black, beneath greyish-suffused, at 

 length naked ; spores 0,0025-45 mm. 

 in diameter. Mudd, Man. p. 259 ; 

 Cromb. Lich. Brit. p. 12; Leight. 

 Lich. Fl. p. 41, ed. 3, p. 40. Cali- 

 cium ceruginosum ft. c&rulescens Turn. 

 & Borr. Lich. Br. p. 156. 



Fig. 23. 



Calicium trichiale Ach. a. Go- 

 nidimia, X 360. b. Apothe- 

 ciura, X 30. c. Vertical sec- 

 tion of upper portion of an 

 apothecium (moistened), X 30. 

 d. Theca and paraphysis, X 

 350. e. Spores, X 500. 

 /. Spermatia, X 500. 



