ProtococcoideiB, Palmellaceso, Protococcus. 705 



nutis, globosis, 3 u.. latis, numerosissimis iii farailias 6-10 ^.. latas, 

 vei majores vel minores consociatis, tegumento communi achroo 

 subarcte involutis. 



Hab. \n aquis destillatis diu asservatis (niASOLETTO); etiam in 

 infusionibus ubi Aig\^ varia) colebantur in Bohemia (Hansgirg). 

 18. Protococcus olivaceus (Rabenh.) Ilansg. Prodr. Algfl. v. Bohraen ^*^^^ 

 p. 144, n. 238, Chlo-rococcuin oliimceum Rabenh. Fl. Eur. Algar. 

 III, p. 58, Cijstococcns olivaceus Rabenh. Krypt. Flor. v. Sachs. 

 pag, 137. — Aquaticus, submembranaceus, fluctuans, virescens vel 

 olivaceo-fuscescens; cellulis globosis, rainutis, 6-lG a. raro ultra 

 latis, tugumentis subarctis ad 22 a. latis, in strato gelatinoso oli- 

 vaceo submembranaceo nidulantibus; c^^tioplasmate viridi, subtiliter 

 granulato, denique fuscescente, in zoogoaidia numerosa dilabente. 



Hab. in stagnis, aquariis, plantis aquaticis vivis aliisque corpo- 

 ribus submersis raortuis affisus, ad Dresdam (Rabenhorst), Vindo- 

 bona^ et Vindobo austriacani (e. gr. Berndorf, Schonau etc), (A. 

 Grunow), pr. ((Harrachsdorf )) Bohemiae (Dr. Hansgirg). 



19. Protococcus? fuligineus Lenorm. in Kuetz. Spec. p. 201, n. 35, ^^so 

 Tabul. Piijcol. I, p. 3, t. 3, f. 23, Rabenh. Fl. Eur. Algar. III, 



p. 56, Chroococcus fuligineus Rabenh, Flor. Eur. Aigar. II, p. 34. 

 — Viridi-fuligineus; cellulis globosis, 8,5-17 a. diam., segregatis, 

 in stratura tenue pulvereum deiiso cumulatis; plasmate granuloso 

 in zoogonidia dilabente. 



Hab. in rupibus obumbratis Helvetice, Saxonia^ et Galliae (Le- 

 normand). 



Species cujus diagnosis niihi haud inuotuit. 



20. Protococcus elongatus Carter Devel. of Sorastrum spinulosum in ^^^^ 

 Ann. Nat. Hist. 1809, IV, p. 420-435, w. pl. 



Species reraovenchi, 



21. Protococcus vestitus Reinsch Algenfl. in Franken p. 56, t. 3, 

 f. 4, est Trochiscia liirta (Reinsch) Hansg.. 



Species maxime dubiae. 



22. ProtoCOCCUS Felisii Menegh. in Kuetz, Tab, Phyc. I, t. 4, f. 30, 



23. Protococcus Orsinli Kuetz Pliyc. germ. p. 146. Chlorococcum 

 Orsinii Menegh. Monogr. Nostoch. p. 22, t. II, f. 1, Rabenh. Fl. 

 Eur. Algar. UI, pag. 60, cellulas quiescentes Chlamijdomonadis 



45 



