rarmelia, F. Collcma. 5i0 



crcnulato crispis, cymatiis marginalibns denrtim scutel- 

 laribus maguis fuscis einetura tornata redimitis, confer- 

 tis marginem oblilerantibus. — Collema melaenum Ach. 

 lich. 636., syn. 315. C. jacobcarfolium DC, gall. II. 

 384. Parmclia mclacna Ach. meth. 240. C. crispatum 

 et laciniatum Ilojfm. gcrm. 100. Lichcn mclacnus Ach. 

 in act, holm. 7 . 160. t. 3. /. 3. JVahlenb. suec. II. 838. 

 L. jacobcaefolius Schrank bav. 530. licrnh. in Schrad. 

 Journ. I. I. t. 1. /. 5. L. atro-prasinus Schl. L. crispus 

 JVeb. L. dccinnbens Oed. fl. dan. t. 463. /.1. L. mul- 

 tifidus Scop. L. gyrosus Gunn. L. margiiwlis Huds. — 

 Vill. hist. t. 19. /. 25. 



Ad rupes schistosas praesertim et calcareas Thuring*., 

 Ilercyn. et aliis G-erman. locis passim. (Varietates , ab 

 Achario distinctas, «. gyrosam, (i.jacobeacfolium, y. ero- 

 sam, d. marginalem et r\. undulatam equideni reticeo 

 nec quoque distingucre audeo.) 



NB. Praeter has afFatim distinguendas, complures aliae 

 ab Achario et auctoribus enumerantur Collematis gene- 

 ris species, quarum quidem notiones me plane fugiunt, 

 vel dubiarum et suspectarum titulis potius h. 1. in aucto- 

 rum lidem enumerantur. 



1019. P. fluvialis Ach.\ thallo subpulvinato e 

 lobis crassis confertis obtusis complicato-undulatis lobato 

 incisis crenatis formato, apotheciis submargiualibus sub- 

 globosis concoloribus, disco urceolato , mai-gine subdu- 

 plici. Ach. syn. 314., lich. 636. Parmclia fluvialis Ach. 

 meth. 249. 



Ad saxa rivulorum. 



1020. P. livido-fusca Spr., thallo squamuloso- 

 lobulato subdiaphano, humecto viridi, sicco livido-fu- 

 scescente, lobulis minutissimis inciso-crenatis erectiuscu- 

 lis, apotlieciis planis rufo-fuscis, margine tenui siibeva- 

 nescente. Sprcng. syst. IV. 295. Collcma livido-fuscum 

 Floerk. D. Lich. n, 80. 



Ad terram subulosam prope Spandau (FZoerfre). 



