362 KUTziJN'G. — Système des algues inférieures. 



IL Protococcus. Ag. syst. 



Globuli liberi non mucosi, in stratum pulveraceum, non ran- 

 cosum, sine ordine aggiegati. 



1. Protococcus nebulosus. Kulz. : aquaticus natans, globulis minutissimis hya- 

 linis albidis, in pelliculam tenuissimam laxe dispositis ( pi. YI , fîg. 18 ). 



2. Protococcus nivalis Ag. ( Icon. alg. t. 21.) : globulis sanguinci^ spbaaricis 



inœqualibus. 

 Palmella nivalis Kunze Flora \%%b. 

 TJredo nivalis R. Brown. 

 Lepraria kermesina Wvan^.. 



3. Protococcus cœ rule us KuXz. : terrestris, globulis sphaaricis amœne cœruleis, 



in maculas saturate caeruleas bic iUic confluentes agregatis. 

 Glohulina cœrulea Turpin Mem. mus. i4. t. 3, fig. 3. 



4. Protococcus monas Ag. ( Icon. alg. t. 11.): terrestris, globulis spbœricis 



hyalino-viridibus, in stratum tenue viride aggregatis (PI. VI. fig. 4. ) 

 Chlorococcum murale Grev. Crypt. VI. t. 325? 



^ aquaticus : ^ohnYis plerumque magis pellucidis et interdum in acervulos 



aggregatis. 

 Lepraria z/î/Msio/2 mtw Scbrank Act. acad.monac. 1811. 



5. Protococcus viridis Ag. : terrestris, globulis bine spbœricis , illinc .«ub- 



angulosis, majoribus in stratum obscure viride densiusculum aggregatis 



(pi. VI, fig. 3). 

 Glohulina botryoides Turp. 1. c. fig. 1. a-d ( exclus, e.f. g.) 

 Chlorococcum vulgare Grev. Crypt. V. tab. 262. 

 Lichen et byssus botryoides Auct. 



6. Protococcus cinereo-sulphureus Kntz. : strato tenuiori,primumviridi, dé- 



ni um griseo-virescenti vel cinereo, globulis plerumque spbaericis. 

 Lepraria cinereo-sulphurea Achar. Floerke. 

 Frequens in pinetis ad corticem pinorum. 



7. Protococcus byssoides Kutz. : globulis minutissimis subsphsericis, in stratum 



pulveraceum latissime expansum cinereo-viridi aggregatis. 

 Lepraria byssoidea Achar. 

 Pulveraria byssoidea Floerke. 



8. Protococcus ater Kutz. : globulis subanguloso-globosis nigris, medio hyalinis 



solidiusculis , in stratum latissime expanuim aterrimum plus minus densum 

 aggregatis. 

 Globulina atraTnr^ 1. c. fig. 6 a( exclusis fig. 6 b. et 6. c. ) 



9. Protococcus rubens Kutz. : globulis spbaericis hyalinis, auranliaco - rubes- 



centibuSj in stratum tenuissimam rubrum aggregatis. 

 Globulina rubens Turpin 1. c. fig. ^i- Lepraria rubra Ach. 



