TROPOLIS. 375 



Name — Lecanora, a genus of lichens. 

 Jedburgh (A. Jerdon). Oxford ! (Baxter). 



B. SPORIDIA OBLONG. 



2. Propolis pyri. (B. and Br.) 



Gregarious or confluent, erumpent, orbicular; hyme- 

 nium plane or concave, black, surrounded by a laciniate 

 margin ; asci cylindraceo-clavate ; sporidia 8, oblong or 

 oblong-elliptic, with 1 or 2 large guttse, slightly tinted 

 brown, 15 — 20 X 8/x; paraphyses filiform, slender, adherent 

 in a dark purple gelatine. 



Stictis Lecanora (Schum.) \&r.pyri — B.and Br., "Ann. 

 Nat. Hist.," No. 1624, t. 11, f. 7; " Grevillea," v. p. 62. 



Exs.— Phil., " Elv. Brit.," No. 148. 



On bark of pear-trees. 



Disc about J a line broad. The sporidia are smaller 

 than in S. Lecanora, the paraphyses slenderer, and the 

 hymenial gelatine is purple, not yellow. 



Name — Pyrus, the genus to which the pear belongs. 



Shrewsbury ! Sutton Coldfield, Warwick ! (Mr. W. B 

 Grove). 



3. Propolis rhodoleuca. (Sommf.) 



At first immersed, then erumpent, ovate, plane, rosy- 

 white, pruinose, yellow within, surrounded by a spurious 

 margin ; asci broadly clavate ; sporidia 8, oblong or 

 oblong-elliptic, often plane on one side, becoming 

 1-septate, 17 — 20 x 7 — 10/u ; paraphyses filiform, slender. 



Stictis rhodoleuca — Sommf., " Lapp.," p. 198 ; Fries, 

 " Sys. Myco." ; " Elench.," ii. p. 26. 



On cones of Pinus sylvestris. 



Cups 1 to 2 lines long. Much resembling P. versi- 

 color, from which it differs little except in colour. 



Name — poSov, a rose, Xevicog, white ; rose- white. 



In the late Mr. F. Currey's herbarium, now at Kew ! 



Var. Strobilina. (Desm.) 

 Solitary or gregarious, angular, nearly circular or 

 oblong, plane, white within ; hymenium milk-white, 



