BACIDIA] LECIDEACE.E 153 



Hah. On trunks of trees, chiefly ash and maple, in maritime and 

 upland wooded situations. — Distr. Not unconnnon in England and S. 

 and W. Ireland, rare in S. Wales and the Channel Islands, not 

 recorded from Scotland. — B. M. St. Ann Port, Jersey ; Newlyn Cliff, 

 Penzance, Cornwall ; Shanklin, I. of Wight ; near Bovey Tracey, 

 Devon ; New Forest, Hants ; Glynde, Sussex ; Maidstone, Kent ; 

 Ulting and Gosfield Hall, Essex ; Wimpole Park and near New- 

 market, Cambridgeshire ; near Brandon, Suffolk ; near Worcester ; 

 Fort Hill, Fishguard, Pembrokeshire ; near Yarm, Cleveland, York- 

 shire ; Leven's Park, Westmoreland ; Dunscombe's Wood, Cork ; 

 Tervoe and Castleconnel, Limerick ; Dinish, Killarney, Kerry ; Lough 

 Feagh, Connemara, Gal way. 



7. B. fuscorubella Arnold in Flora liv. p. 55 (1871). — Thallus 

 effuse, thin, dark-grey or whitish. Apothecia brown, sessile or 

 adnate, large, at first plane and thinly margined, then convex 

 and immarginate ; hypothecium brownish-yellow ; paraphyses 

 slender, loosely coherent, yellowish at the apices ; spores straight, 

 rather stout, attenuate towards the base, 4-16-septate, 0,060- 

 75 mm. long, 0,003-5 mm. thick ; hymenial gelatine deep-purple- 

 violet with iodine. — V err uc aria fuscorubella Hoffm. Deutschl. Fl. ii. 

 p. 175 (1795). Lecidea fuscorubella Cromb. in Grevillea xxii. 

 p. 58 (1893). 



Hab. On the bark of trees. — Dist. Rare in S. and Central England. 

 — B. M. Near Stoney Cross, New Forest, Hants ; Malvern, Worcester- 

 shire. 



8. B. herbarum Arnold in Flora xlviii. p. 596 (1865). — Thallus 

 eff'use, very thin, granulose, greyish-white (K — , CaCi — ), often 

 obsolete. Apothecia moderate in size, sessile, at first prominent 

 and almost closed with a shining margin, at length convex and 

 immarginate, reddish or dark-red ; hypothecium brownish- or 

 reddish-yellow ; paraphyses coherent, slightly clavate at the 

 apices ; epithecium colourless ; spores acicular, straight or some- 

 what flexuose, narrower at the apices, 3-5- or usually 5-7-septate, 

 0,038-56 mm. long, 0,001-2 mm, thick ; hymenial gelatine blue 

 then sordid-wine-red with iodine. — Secoliga herbarum Stiz. in 

 Acad. Gees. Leop. Nov. Act. xxx. 3, p. 46 (1863). Lecidea 

 herbarum Cromb. in Journ. Bot. xii. p. 148 (1874) ; Leight. Lich. 

 Fl. ed. 3, p. 372. 



Exsicc. Larb. Lich. Hb. n. 350. 



Stizenberger considered this plant to be intermediate between 

 B. effusa or B. fuscorubella and B. muscorum, agreeing with the 

 latter in habitat and colour of the older apothecia, but approaching 

 more nearly to B. effusa in the form and size of the spores. The 

 thallus varies from being very granular and contiguous to dispersed, 

 scanty, or obsolete. 



Hah. Incrusting decaying mosses on granitic rocks in maritime 

 tracts. — Distr. Local and scarce in the Channel Islands. — B. M. Near 

 Rozel, Jersey ; Port Gorey and the Eperquerie, Sark. 



