dillenius's 'historia muscorttm.' 569 



= Physcia lettcomela (Z.). Of this there is only a small ste- 

 rile fragment ; and the figure is not very characteristic. 



P. 51. Lichenoides subhirsutum teres, scutellis parvis nigris, 

 p. 157, = Physcia intricata (Desf.). The specimen figured, 

 which is extant in hb. Dill., is most probably a portion of that 

 sent by Michaeli to Sherrard. 



P. 52. Lichenoides cornutum amarum, superne cinereum, in- 

 ferne nigrum, p. 157, = Everista fuefubacea (L.). The speci- 

 men figured is not in hb. Dill. ; and the two specimens which are 

 there are smaller and sterile, though sufficiently typical. 



P. 53. Lichenoides corniculatum album subspinosum, scutellis 

 flavescentibus, p. 159, = Physcia yillosa (Ach.). The specimen 

 said to have been sent by Michaeli is not in hb. Dill., where it is 

 represented only by two fragmentary lacinise almost indetermi- 

 nable, one of which is nearly quite naked with the thalline recep- 

 tacle abraded. Referred by Acharius, in Meth. p. 256, to his 

 JParmelia solenaria, which, as indicated by Pries in L. E., does 

 not differ from Physcia villosa. 



P. 54. Lichenoides corniculatum candidum molle, segmentis 

 angustis, p. 159,=Eyer;nia prtjnastri, var. gracilis, Ach. The 

 specimen is sterile, and the figure is by no means very characte- 

 ristic. Not identified by Acharius, and referred by Pries to var. 

 arenaria, Eetz., which, according to Th. Pries, Scand. p. 30, is a 

 form of E. divaricata (L.). 



P. 55. Lichenoides cornutum bronchiale molle, subtus incanum, 

 p. 160. A=Eyernia prunastri (L.) (sorediifera). Sterile. 

 B = Eamalina fasti giata (Pe?*s.). Pertile. C, D = young states 

 of Evernia prunastri, Ach. E = E. pollinaria f. humilis, Ach. 

 P, Gr, I. Of these there are no specimens in hb. Dill., nor are 

 any figs, given ; but E probably = R. polloaria, and Q-, I = R. 



FASTIGIATA. H = EvERKIA PRUNASTRI f. RETUSA, Ach. C, E, 



H have not hitherto been rightly determined. 



P. 56. Lichenoides lacunosum candidum glabrum, Endiviae 

 erispse facie, p. 162. A = Platysma ^"iyale (L.). There are 

 several specimens of this, but all sterile. B = Pl. cucullatum 

 {Bell.). Of this there are only the two sterile fragments repre- 

 sented in the figure. Not identified by Acharius, but correctly 

 referred to this species by Fries. 



P. 57. Lichenoides lacunosum lacerum, latius et angustius, 

 p. 163. A, B, C = Eamallna evernioides, Nyl. B is very cha- 

 racteristic ; but all the specimens are iuf ertile. The identity of 



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