22 ANGIOCAllPOUS LICHENS. 



approaching them, however, in general external appear- 

 ance. 



From the sub-tartareous section of Endocarjpon it is 

 distinguished by the different sporidia. 



1. S. ciNEREA, Fries. Sporidia in asci 8, narrow-oblong, 



uniseptate, pale. Plate VII. fig. 1. 



Endocabfon cinereum, Fers. in Ust, Ann. Bot. vii. 28. (1794.) 

 Lichen tepuroides, Ach. Prod. 18. (1798.) j, 



Sm. E. Bot. 2013. 



Endocarpon tephroides, Ach. Meth. 129. (1803;) L. Univ. 297; 



Syn. 98. 

 -- Hook. Br. Fl. ii. 159. 



Sagedia CINEREA, FHes. L. Ref. 413. (1831.) 



Summit of Ben Lawers ! Stronsay, Orkney ! Mr, 

 Borrer. 



The yellow portion of the thallus is composed of cel- 

 lular tissue, the dark substratum is spongy, very compact 

 upwards, but looser below, and sending forth many masses 

 of articulated brown fibres. The membranaceous apo- 

 thecium is as thin as the inner tunic in many Ferrucaria, 

 with a pore in the apex. 



2. S. FUSCELLA, Fries, Sporidia in asci 8, narrow-ob- 



long, pale. Plate VII. fig. 2. 



Lichen euscelltjs. Turn, in Linn. Trans, vii. 90. t. 8. f. 2. (1784.) 



Sm. E. Bot. 1500. 



Verrucaria FUSCELLA, a. Ach. L. Univ. 289. (1810.) 

 Endocarpon euscellum, a. Ach. 1. c. 675. (1810.) 



- Book. Br. Fl. ii. 159. 



Ta^l. Fl. Hib. pt. ii. 101. 

 Endocarpon tephroides, /3. polythecium, Ach. Syn. 99. (1814.) 

 Sagedia puscella. Fries, L. Reform. 4J3. (1831.) 



Sussex ! Mr. Borrer. 



Apothecium imbedded in the yellow tartareous por- 

 tion, tunic pale, nucleus paler, substratum carbonaceous, 

 black. 



