biatorina] lecideace^ 117 



at first plane and thinly margined, at length convex and immar- 

 ginate, pale-reddish ; paraphyses not discrete ; hypothecium pale ; 

 spores ellipsoid or oblong-ellipsoid, 0,014-17 mm. long, 0,006-7 

 mm. thick ; hymenial gelatine bluish, the asci at length violet, 

 with iodine. — Lecidea suhsphseroides Nyl. in Flora Ivi. p. 294 

 (1873); Cromb. in Grevillea ii. p. 89; Leight. Lich. Fl. ed. 3, 

 p. 343. 



Differs from the preceding in the more distinct thallns and in the 

 plane apothecia. 



Hah. On beech trees, rare. — B. M. Near Lyndhurst, New Forest, 

 Hants (the only locality). 



13. B. graniformis A. L. Sm. — Thallus effuse, granulate or 

 verrucose-rugose, pale-yellow, whitish-glaucous or straw-coloured 

 (Kf 4- yellowish, CaCl — ), at times subevanescent. Apothecia 

 small, adnate, pale-yellow, plane and obtusely margined, the 

 margin often flexuose, at length slightly convex and immarginate ; 

 paraphyses coherent, colourless ; epithecium subgranulose, yellow ; 

 hypothecium colourless ; spores oblong or fusiform-oblong, thinly 

 1-septate, 0,008-11 mm. long, 0,0025-35 mm. thick; hymenial 

 gelatine bluish then sordid-violet with iodine. — B. Ehrhartiana 

 Mudd Man. p. 176 (1861). Lichen granlformis Hagen Tent. 

 Hist. Lich. p. xlvii. t. 1, f. 2 (1782) ; Dicks.'Crypt. fasc. i. p. 10 ; 

 With. Arr. ed. 3, iv. p. 7 ; Engl. Bot. t. 1464 (spermogoniiferous 

 state). L. Ehrhartianus Ach. Prodr. p. ;)9, t. 2, f. 1 (1798) ; 

 Dicks. Crypt, fasc. iv. p. 22 (non Engl. Bot. t. 1136 which is 

 Lecanora conizsea Ach.). Lecidea Ehrhartiana Ach. Meth. p. 73 

 (1803) ; S. F. Gray Nat. Arr. i. p. 474 ; Hook, in Sm. Engl. 

 Fl. V. p. 185 : Turn. & Borr. Lich. Brit. p. 142 ; Leight. Angioc. 

 Lich. p. 69 & Lich. Fl. p. 320 ; ed. 3, p. 342 ; Cromb. Lich. 

 Brit. p. 65. Cliostomum corrugatum Fr. Lich. Eur. p. 455 

 (spermogones only) ; Leight. Angioc. Lich. p. 69. 



A singular plant which might readily be taken for a biatorine state 

 of a species allied to Lecanora varia, of which Schaerer (Enum. p. 82) 

 considered it a variety. A very marked character is afforded by 

 the numerous large spermogones, which were formerly regarded as 

 foreign parasitical bodies or, in sterile specimens, as abortive 

 apothecia. They are superficial, black, usually crowded, warted and 

 corrugate (K -I- rose- violet), beneath colourless, with short, simple 

 sterigmata and oblong spermatia, 0,002-3 mm. long, 0,001 mm. thick. 



Hab. On old palings, rarely on trunks of trees, in maritime and 

 upland situations. — Distr. Local, though plentiful where it occurs, in 

 E., S., and W. England, and in S. Wales. — B. M. Near Acle and 

 Yarmouth, Norfolk ; Livermere, Suffolk ; near Colchester, Essex ; 

 Penshurst, Kent ; Henfield and Hurstpierpoint, Sussex ; Pembridge, 

 Herefordshire ; Harboro' Magna, Warwickshire ; Llandrindod, Rad- 

 norshire. 



14. B. cyrtella Th. Fr. Lich. Arct. p. 186 (1860) (non Koerb. 

 fide Th. Fr. Lich. Scand. p. 294 (1871).— Thallus effuse, very 



