390 



THE LICHEN-FLORA 



On old rails, rare. 1867. 



Sto :— Nyl. in litt. 1867. Crombie En. 95. 



Fig :— Linn. Trans, ser. 2. 1. 1. 32. f. 17. 



Exs :— Leight. 409. 



Geog. Distbib: — Europe. 



Bot. Pbov :— 2...5...7. 



England : — Braydon Forest ! Wilts. Mr. Joshua. Brace Meole ! (1867.) 

 Kadbrook ! Haughmond Hill ! Shelton ! Wenlock ! Whitchurch ! Pulley ! near 

 Shrewsbury, Shropshire. 



Wai.es : — Towyn ! 



Spores .0195— .021 mm. long, .005— .007 mm. broad. 



2, 0. majus, Leight. whitish or evanescent ; apothecia brownish, 

 prominent, scattered, rotundate, svburceolate, margin thickish, pro- 

 minent, persistent, nearly entire ; hypothecium colourless or slightly 

 fulvescent ; paraphyses distinct, slender ; spores 8, colourless, 

 broadly lineari-oblong, 3-septate ; I renders the linear asci and 

 spores lutescent. 



On drift wood and decorticated willow stumps, rare. 1876. 



Stn :— Leight. in Linn. Trans. 2d. ser. 1. 239. 



Fig :— Linn. Trans. 1. c. t. 32. f. 16. 



Geog. Distbib : — Great Slave Lake. 



Bot. Pbov : — 5... 6. 



England : — Hencote Pool ! near Shrewsbury. Mr. W. Phillips. (1876.) Oakley 

 Park ! Cirencester. Mr. Joshva. 



Wales : — Goodwick Bay ! Pembrokeshire. 



Spores double the size of those of O. minus, Nyl. (.0115 — .014 mm. long, .005 

 mm. broad. Linn. Tram. 2d. ser. 1. t. 32. /. 15), .019— .021 mm. long, .0075— 

 .0085 mm. broad. Spermogonia brownish, oblong, minute ; spermatia oblong 

 or lineari-oblong .0095 mm. long, .003 mm. broad. 



III. SCHIZOXYLON, Pers. 



Thallus evanescent. Apothecia lecideine, elevated, naked, 

 black. Spores numerous. 



1. Schizoxylon corticola, (Frs.) NyL whitish or yellowish-white, 

 thin, continuous, tartareous, smoothish ; apothecia black, very 

 numerous, round, plano-convex, sub-pulverulent or minutely granu- 

 lose, immarginate ; hypothecium thin, dark-brown ; paraphyses 

 slender, distinct ; spores innumerable, colourless, very minute, ob- 

 long, simple. 



On old oaks, rare. 1870. 



Stn :— Nyl. Class. 2. p. 197. (1855.) Enum. gen. 127. Scand. 249 Coniangium, 

 Fr. S. V. Sc. 121. 

 Exs :— Fr. 273. (fideNyl). 

 Geog. Distrib : — Europe. 

 Bot. Pkov :— 2. 

 England : — Near Lyndhurst in New Forest ! Rev. J. M. Crombie. 



Tribe XVI. GKAPHIDEI. 



Thallus thin, scarcely visible or hypophlaeodal. Apothecia 

 lirelline. 



I. XYLOGRAPHA, Fr. pr. p. Nyl. 

 Apothecia linear, epitheciuni plane or concave or sulciform, 

 longitudinally plicate. Spores colourless, Paraphyses distinct or 

 indistinct, slender. 



