PILOPHORUS. 235 



XL. PILOPHORUS, Th. Fr. 



Apothecia cephaloid; solid ; black. Spores ellipsoid 5 

 simple*; colourless. Spermatia staff-shaped ; on sub-simple 

 sterigiiias. Podetia simple or but little branched ; originally 

 solid ; clothed with wart-like granules (phyllocladia) which 

 are collected also into a crust at the base. The distinct- 

 ness of this type is manifest ; as is its very close affinity to 

 Stereocauloh. 



P. cereolus (Ach.); podetia erect, rigid, sub -cylindrical, for 

 the most part simple ; phyllocladia minute, roundish becoming 

 flattened and squamiform, from green at length ash-coloured ; 

 (cephalodia from sub-globose at length flattened ; wrinkled, and 

 granulate; and from livid reddish-brown, and darkening;) 

 apothecia terminal. Spores ^^ mic. P. acicularis, Tuck. 

 Gen. p. 146. 



a. Fibula, Tuck. ; podetia solid, from very short, and even 

 obsolete, at length equalling those of , simple ; (cephalodia at 

 length explanate, and finely granulate, olivaceous -brown;) 



apothecia globose - depressed. Stereocaulon Cereolus, Ach. 



Meth. p. 316 ; L. U. p. 582. Borr. in E. Bot. Suppl. t. 2667, 

 fide Taylor herb. ! S. Fibula, Tuck. Syn. N. E. p. 46. Pilopho- 

 ron, Tuck. Suppl. I, p. 42. Nyl. Syn. I, p. 229. Pilophorus, Th. 

 Fr. Hon. Ster. p. 71 ; .10, /. 5. P. robustus, v. Cereolus, Th. 

 Fr. Scand. p. 55. 



b. Hallii, Tuck. ; podetia solid, short and stout ; the apo- 

 thecia elongated and pestle -shaped (2-4 mm - long, 0, 5mm._imm. 

 wide). Obs. Lich. 4, I. c. p. 177. 



c. acicularis, Tuck. ; podetia sub-fistulous, rather elongated ; 

 simple or scarcely now branched ; (cephalodia sub-globose, bul- 

 late, from pale-livid becoming reddish and brown;) apothecia 



soon sub-conical. Bceomyces, dein Cenomyce, Ach. Meth. p. 



328, t. 8, /. 4 ; L. U. p. 567. Stereocaulon, Tuck. Syn. N. E. 

 p. 47. Pilophoron, Tuck. Suppl. I, p. 427. Nyl. Syn. I, p. 229, 

 t. 7,f. 6. Pilophorus, Th. Fr. Mon. Ster. p. 70, t. 10, /. 4. 



d. robustus, Tuck. ; podetia sub-fistulous, at length rather 

 elongated, and stout; branching above into somewhat corym- 

 bose summits; (cephalodia as in c, becoming ample;) apothecia 

 depressed-globular. P. robustus, Th. Fr. Mon. Ster. p. 69, t. 



