errucarui 



LICHENES. 149 



consent, now combined with it again. Mr. Borrer goes farther 

 and unites with it the Genus Endocarpon, and even thinks that 

 the Acharian Porina (Pertusaria, DC.) should not be kept dis- 

 tinct. His character, as given in the Supplement to E. Bot., runs 

 thus ; " Tubercles of a different substance from the thallus, sim- 

 ple, convex, not expanding, but furnished with a central pore and 

 inclosing a somewhat gelatinous nucleus" 



* Growing on the bark of trees, Corticolse. 



1. V.nitida, Schrad. ( Wax-like Bark Verrucaria); crust de- 

 terminate somewhat tartareous continuous smooth waxy brown 

 marked with minute pale dots and swelling about the tubercles, 

 apothecia rather large hemispherical black immersed, at length 

 partially exposed. Borr. — Schrad. in Journ. 1801, fuse. I. p. 79. 

 Borr. in E. Bot. Suppl. t. 2607. /. 1. Schccr. Lich. Helv. 

 p. 57. n. 111. — Pijrenula nitida, Ach. Syn. p. 125. — Sphceria 

 nitida, Wtig. — Sow. E. Fungi, t. 27b. 



Frequent on smooth bark, particularly that of the Ash. 



2. V. dermatodes, Borr. ( Vclhun-Uke Bark Verrucaria); crust 

 determinate between filmy and tartareous continuous very 

 smooth cream-coloured swelling about the tubercles, apothecia 

 hemispherical black immersed at length exposed. Borr. in E. 

 Bot. Suppl, t. 2607. /. 2. 



Trees in Ireland; near Bantrv, Mus Hut chins, and near Killarney, 

 Sir T. Gage, Hart.— Miss Hutchins observes that the living plant is con- 

 stantly suffused with a reddish tinge, probably of an extraneous nature, 

 of which some traces remain on "Mr. Borrer's long-dried specimens. — 

 " Allied, at first sight, to V. epidermidis as it usually grows on Birch-trees, 

 or to a variety of it which spreads over the trunks of young Ash-trees ; 

 but in the real nature of the crust it more resembles V. nitida, although 

 not in the structure of its tubercles, the shell of which does not, as in 

 that, inclose the base of the nucleus; but the colour and remarkable 

 vellum-like appearance of its thinner and polished crust and the entire 

 want of clots distinguish it." Borr. 



3. V. cinerea, Vers, (greyish Bark Verrucaria); crust grey- 

 ish uninterrupted thin smooth and polished swelling about the 

 tubercles, apothecia minute convex black protruding- through and 



elevating the crust. — F.stigmateUa,Ach. Syn.p.89. — Lichen dig- 

 matettue, E. Bot. t. 1891. Per*, in Ust Ann. fuse. 7. p. 28. t. :i. 



/: 6. a. 



On the smooth bark of trees, New Forest, Hants; C. Lijell, Esq* 



4. V. epidermidis, Ach. (Birch-Bark Verrucaria); crust very 

 thin spreading cream-coloured, apothecia black very minute 

 roundish convex the circumference depressed with an hemi- 

 spherical point in the centre. Ach. Syn. p. 89. Schar. Lich. 

 Helv. p. 56. n. h>7, 108. — 3. analepta; crust ..live-coloured in- 

 clining to coppery, apothecia elevated he niUplneri. al Scattered 



black with a central dot. I. anaiqda, Ach. Syn. p. 88. — 

 Lichen anakpt., E. Bot. t. 1*4*. 



