26 



THE LIOHEN-FLORA 



2. L. microphyllwm, Ach. darholive or fuscous-green, microphylline, 

 imbricated, lobes granulato-crenate, minute, often vemicoso-diffract, 

 effuse ; apothecia pallido-rufescent, small, crowded, urceolato- 

 concave, thalline margin nearly concolorous, entire; spores 8, 

 colourless, ovoideo-ellipsoid, 3-septate ; gelatina hymenea blue with 

 iodine. 



On old elms, rare, 1810. 



Syn :— Ach. L. IT. 630. (1810) ; Syn. 310. Nyl. Syn. 113. 



Pics :— E. Bot. SuppL t. 2721. 



Exs :— M. & N. 948. Zw. 168. Nyl. 5. Schasr. 411. Leight. 258. 



Geog. Distbib : — Central Europe, France, Sweden, Germany, Switzerland, 

 Algeria. 



Bot. Pbov :— 1, 3, 4, 5.. .10. 



England :— Near Bury St. Edmund's, Suffolk. Rev. G. R. Leathes. (1810). 

 Dunsford near Exeter, Devon, - Mr Parfitt. Ingleby Park, Cleveland. Mr Mudd. 

 Lyndhurst, New Poreat. Rev. J. M. Crombie. Danny ; Ockley Green, Surrey. 

 Mr. Borrer. near Worcester. Dr. Soil. 



Channel Islands :— St. Martin's Quenvais, Jersey. Mr. Layrbalestier. 



Crombie l.c. states that " the two preceding species form a natural transition 

 between Collema and Leptogium, the thallus having the structure of Leptogium, 

 while the apothecia are those of Collema." 



" Spores .016—24 mm. long. .008— .010 mm. broad." (Nyl.) 



3. L. amphineum, (Ach.) Nyl. olivaceous orfusco-virescent,adnate, 

 slightly spread about or subcrusteeform, unequal, scarcely truly 

 lobate ; apothecia obscurely ru/esceni, small, somewhat concave ; 

 spores 8, colourless, ellipsoid or ellipsoideo-ovoid, 3-septate and 

 variously divided. 



On the earth, sparingly. 1872. 



Syn:— Nyl. Scand. 32. (1861) ; Crombie in Journ. Bot. u. s. 2. 133. 

 Geog. Distbib: — Scandinavia. 

 Bot. Pbov : — 1...5. 



England : — Newlyn Cliff ! near Penzance, Cornwall. Mr Gurnow. near 

 Stroud, Gloucestershire. Mr. Joshua. 

 " Spores .023—27 mm. long. .009—011 mm. broad." (Nyl.) 



4. L. rhyparodes, NyL fuscous or fusco-nigrescent, furfuraceous, 

 thin, or subgranulose, diffuse, vinous-red with iodine ; apothecia 

 concolorous or rarely rufescent, small, somewhat plain and even- 

 tually biatorine; spores 8, colourless, ovoid, one or both apices 

 attenuate, submurali-divided ; paraphyses slender ; gelatina hy- 

 menea blue with iodine. 



On alpine rocks, rare. 1863. 



Syn :— Nyl. in Plora 1857. p. 210. Carroll in Seem. Journ. Bot. 3. 287' 

 C. psordhim, Leight. Lich. Fl. 2d ed, p. 26. 



Bot. Pbov : — 15. 



Scotland : — Near summit of Ben Lawers ! Adm. Jones. (1864). Above Loch- 

 na-cat. Rev. J. M. Crombie. 



Crombie Lc. says "in its less developed and more obscure state, as on the 

 summit of Ben Lawers, originally named by Nylander Collema psorelZum. 

 Plora 1865. p. 602." 



5. L. tenuissimum, (Dicks.) fusco-virescent, imbricated, micro- 

 phylline, digitato-multifid, lacinice linear, unequal, subciliate • 

 apothecia biatorine, urceolate, margin entire, thick, paler • spores 

 8, colourless, ovoid or oblong, irregularly murali-locular. 



On mossy earth, not common. 1782. 



Syn :— Dicks. Br. Crypt. 1. 13. (1875) ; Nyl. Scand. 33. L. spongiosum, Nyl. 

 Scand. 33. (not teniussimum, Nyl. Scand. 34.) 



