OF GREAT BRITAIN. 497 



152. V. nigritella, 'Nyl. black, magmoid (probably not the 

 proper thallus but only algae) ; apothecia black, small ; perithecium 

 entire, black, somewhat prominent; epithecium scarcely impressed ; 

 paraphyses none ; spores 8, fuscous, ellipsoid or oblongo-ellipsoid, 

 variously or murali-locular, small, (like those of Urceolaria scruposa.) 



On the thalline squamaa of Verrucaria tephroides, very rare. 



1864. 



Syn :— Nyl. in Flora 1865. p. 357. Carroll in Seem. Journ. Bot. 4. 25. 

 Fig :— Leight. Ang. Lioh. t. 11. f. 3. B. 

 Geog. Distbib : — Europe. 

 Bot. Phov :— 15. 



Scotland : — Summit of Ben Lawers. Mr. Carroll. (1861.) 

 "Spores .021—36 mm. long, .009 — .014 mm. broad. Gelatina hymenea I 

 vinous-red or fulvesoent." (Nyl.) 



153. V. triphractoides, (Nyl.) apothecia black, minute, hemi- 

 spherical; perithecium entire ; spores 8, colourless or pale-brownish, 

 oblongo-fusiform, 3-septate. 



Parasitical on dealbated portions of thallus of Lecidea Scotinodes, 



Nyl. 1874. 



Syn :— Crombie in Grevillea 3. p. 24. (1874.) 



Bot. Pbov : — 15. 



Scotland : — Craig Tulloch, Blair Athole. Rev. J. M. Crombie. (1874.) 



" Spores .014—18 mm. long, .006—7 mm. broad." (Cromb.) 



154. V. neottizans, Leight. apothecia black, minute, clustered, 

 hemispherico-conical ; perithecium carbonaceous, entire; paraphyses 

 distinct, slender ; spores 4, fuscous, lineari-oblong, 3-septate, con- 

 stricted. 



Parasitic on Bceomyces rufus, D.C. very rare. 1876. 



Syn : — Leight. in Linn. Trans. 2d. ser. 1,'239. 



Fig :— Linn. Trans. 1. c. t. 32. f. 19. 



Bot. Pbov : — 6. 



Wales : — Llanachar Bridge ! near Fishguard, Pembrokeshire. (1876.) 



Gelatina hymenea I—. Spores .0245 — .025 mm. long, .0085 -.009 mm. broad. 



155. V. corniculata, (Walk.) apothecia very minute, immersed, 

 tuberculate, endocarpoid, scattered ; paraphyses none ; spores 8, 

 colourless, shortly fusiform, corniculate at each apex, obsoletely 

 7-septate. 



Parasitic on thallus of Leptogium microscopicwm. 



Syn -.—Obryzvm, Wallr. Fl. Cr. Germ. 2. p. 296. Nyl. Flora 1875. p. 106. 



Fig :— Nyl. Syn. t. 2. f. 9. 



Exs :— Mass. 138. 



Geog. Distbib : — France. 



Bot. Pbov : — 5. 



England :— Weston-super-Mare. Mr. Joshua. 



156. V. dolichotera, ^Nyl.) Similar to V. corniculata, but with 

 spores longer, 3-5-septate, cylindrico-oblong. 



Parasitic on lobes of Gollema auriculatum, var. pinguescens, 



Nyl. 1870. 



Syn :— Nylander in Flora 1872. p. 353. 



Bot. Pbov : — 15. 



Scotland :— Craig Tulloch, Blair Athole. (1870.) Rev. J. M. Cronibie. 



