40 ANGIOCARPOUS LICHENS. 



The apothecia, when viewed from above, are round in 

 their outUne, the imperforation very minute, round. The 

 perithecium is represented in E. Bot. as entire. 



6. V. EPiDERMiDis, Ach. Perithecium conoid, depressed 

 and spreading at its base ; sporidia 8 in asci, hnear- 

 oblong, rounded and sometimes a Httle spreading at 

 the extremities, constricted in the middle, unisep- 

 tate, pale-vellow, with a broad white margin, not 

 unhke the figure of 8. Plate XVII. fig. 3. 



Verrucama EPIDERMIDIS, a. Ach. L. Univ. 276. (1810) ; Syn. 89. 

 __ _ a. Hook. Br. n. ii. 149. 



a. Tai/l Fl. Hib. pt. ii. 88. 



/3. Fries, L. Ref. 447 (excl. syn. in part). 



Sussex ! Mr, Borrer. Oswestry, Shropshire ! Rev. 

 T. Balwey. Spec, exsicc. ! Bolder s Licit. Brit. 



j3. ANALEPTA, Ilooh. Pcrithecium more conxex, not 

 so perfectly conoid ; the other characters similar. 

 Plate XVII. fig. 4. 



Lichen analeptus, Ach. Prod. 15. (1798.) 



Sm. E. Bot. 1848. 



Verrucaria ANALEPTA, Ach. Mcth. 119. (1803;) L. Univ. 276; 



Syn. 88. 

 Verrucaria epidermidis, a. Fries, L. Ref. 447. (1831.) 



/3. Book. Br. Fl. ii. 149. (1833.) 



_ Tayl Fl. Hib. pt. ii. 88. 



his meaning of this phrase, we must refer to his observations on the 

 " Corticol?e * * minores," p. 445, where he states that the only constant 

 character they possess is m the difference of the perithecia being either 

 dimidiate or entire. Of this difference, so important to be noted in the 

 examination of Verrucariae, he writes " Typice cam quidem constantem 

 habemus, sed varia ratione temperatur. Ubi basis perithecii dimidiati di- 

 vergit, cujus evidentissimum exemplum oflFert Verrucaria cotioidea, absolute 

 constans est ; ubi vero basis convergit, ut in V. Diifourei, saepius in minus 

 evoluto statu passim hiatus vix palpabihs ut fere contigua appareat. Cum 

 perithecia Integra a crusta rite evoluta recipiuntur, normalem suam struc- 

 turam semper servant, verum crusta macilenta, peritheciis matrici ipsi ad- 

 natis, basis subinde obliteratur, tam in saxis durioribus (vix in calcareis 

 laxioribus), quam supra epidermidem, (minus in peritheciis primitus obtectis 

 prioris sectionis. [Corticola * majores].)" 



