PROPOLIS. 375 



Name Lecanora, a genus of lichens. 

 Jed burgh (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 guttaj, slightly tinted 

 brown, 15 20 x S/u; paraphyses filiform, slender, adherent 

 in a dark purple gelatine. 



Stictis Lecanora (Schum.) var. 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 i 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/ij paraphyses filiform, slender. 



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

 " Sys. Myco." ; " Blench.," 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, AEUJCOC, white ; rose-white. 



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



Var. StrobUina. (Desm.) 



Solitary or gregarious, angular, nearly circular or 

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



