SECTIO QVARTA. CONFERVA. l63 



Habitat ad terramnudam sabulosam in sylvestribus ad officinam ferrariam Naes 

 Norvegiae , et alibi sat freqvens. In terra ad Geelskov Sellandiae. In msuljs 

 Faeroensibus hic illic copiose. 



DESC. C.Tspes densissimus , impHcaUis , 3-4 polHces longus latnsqve , terram sa- 

 bulosam uinbrosam obducens. Fila densissime implcxa, infernc terram per- 

 reptantia , pelhicida vel dilute fusca , hic ilhc fibrillas radiciformcs emittcntia, 

 supcrne instratum, vchitum rcferens, intricata, vage ramosa ; i-ami ahcrni, 

 flexuosi, inferiores remoti, superiores magis ajiproximati ; ramuh breves, sub- 

 secundi , horizontahter patuh , incurvi , apice obtusi. Articuh in filo prima- 

 rio nulh", in ramuhs summis hic iUic adsunt, diamctro 2-6plo longiorcs. Gc- 

 nicula pelhicida, interdum obscura. Color lacte vcl holosericeo-viridis, ve- 

 lutinus, unde nomen. Substantia tenerrima, mollis. Aestate. Chartse nou 

 adhserct. 



53- C. umhrosa ; filis ramosis , fragihbus, in stratum velutinum implexis ; Tab. S7' 

 ramis erectis , obtusis ; articulis diametro subduplo longioribus , in summitate 

 ramulorum inflatis , diametro aeqvalibus. 



Conferva umbrosa Dillw. Tab. 6i. et Introd. n. 76. — Rott. Cat. bot. I, p. igt. 3, p. 

 217. _ Roth. F). Gorm. 3, p. 521. — Ag. Syn. p. g^. 



— arenaria Roth. Cat. bot. 2, p. 217? 



Habitat in insulis Faeroensibus ad ripas rivulorum liumidas, umbrosas. 



DESC. Csespes densissimus , plures pollices in diametro habens. Fila abbrevia- 

 ta, fragilia, fastigiata, vage ramosa; rami erecti, apicem versus densiores, 

 obtusi. Articuli longltudine variabiles , plerumqve diametro 2-3plo longio- 

 res , in smpmis ramulis haud raro diametro ajqvales , inflati , gibbi , geniculis 

 contractis. Color saturate viridis , velutinus. Substantia tenerinma , mollis. 

 Aestate. Chartae non adhaeret. 



OBS. A pr.Tecedentc difTcrt filis non radicantibus , articulis hic iUic inflatis, et co- 

 lore saturatiori , qvi tamen loco natali forsan dcbetur. 



54- C. Jolithus ; filis dichotomo-ramosis , caespitosis, abbreviatis, auran- 

 tiis; ramis alternis, patentibus; articulis diametro sesqvilongioribus. 



Conferva Jolithus Ag. Disp. p. 33. ot Syn. p. 75. 



— aiirea (3. Jolukus Rolh. Cat. bot. 3, p. 219. 



Bysstis Jollthiis Linn. Syst. nat. 3, p. 721. — Fl. dan. Tab. ggg. fig. i. _ Mohr Hist. 

 nat. Isl. p. 250. _ Hiulson p. fiog. — Roth. Fl. Gerra. 3, p. 565. — Starke i" SchracL 

 Journ. I B. igoo. p. 340. Mich. nov. gen. p. 210. Tab. 89- '>£• 3- 



Lepraria? Jolithiis Ach. Meth. Lich. et Prodr. p. ii. 



Lichen Jolithus With. 4, .p. 5. 



(2lM 



