704 Protococcoideaj, Palmellacese, Protococcus. 



Hab. in locis stagnosis nec non in aquis lente fluentibus, plerurn- 

 que corporibus submersis affixus; in limo subhumido juxta amnes, 

 rivulos, lacuum ripas passim, — Var. nidulans Hansg. Prodr. p. 238, 

 1 et p. 274 (Cfr.). In muco Rivulariae in Boheraia (Hansgirg). 



13. Protococcus viridi-aurantius Mont. in Ann. Scienc. Nat. 1856, i674 

 p. 179. — Conglomeratus, e viridi-aurantius ; cellulis 2-3-4-natis, 

 immo conglomeratis, 10-20 y.. diam., exacte sphaericis, tandem so- 

 lutis liberisque; contentu aurantio. 



Hab. inter frondes Nostocis sphrerici, in consortio Toly- 

 polricis tenuis ad lapides calcareas in fluvis aut rivis iraprimis j 



provincia? aCarabaya)) in Bolivia AmericEe australis. \ 



14. Protococcus Immanis Mont. in Ann. Scienc. Nat. 1850, p. 179. 1675 i 

 — Sparsus; cellulis globosis, magnis, 30-80 a. diara., simplicibus i 

 aut geminatis; membrana hyalina, crassa, concentrice lamellosa; \ 

 contentu primitus aureo-nitido subsolido, tandem microgonimico cel- J 

 lulam elimbatara implente. | 



Hab. in lacunis provincise (cLa Paz » in Bolivia Americce au- 

 stralis, in consortio Stigonematis boliviensis (Mont.) B. et 

 F. et Cosmarii Weddelliani Mont. (Weddell). ', 



15. Protococcus ellipticus Dickie Alga? coll. at the Cape Verde Is- 1676 ; 

 lands In Journ. Linn. Soc. Bot. vol. XIV, 1874, p. 348 (sub ChlO' \ 

 rococco). — Cellulis ellipticis, 40 ^^ 25, singulis ; membrana hya- 1 

 lina distincta; plasmate saturate viridi. \ 



Hab. inter Leptotricis filamenta, sociis diatomaceis e gen. 

 Melosira, Epiihemia et Navicula, ad «S. Vincenzo» ins. Cap. Virid. \ 



16. Protococcus? frustulosus (Carm.) De-Toni, Chlorococcum fru- 1677 , 

 stulosum (Carm.) Rabenh. FI. Eur. Algar, III, p. 59, Cooke Brit. j 

 Freshw. Alg. p. 30, t. 12, f. 2, Hcematococcus frustulosus Harv. \ 

 in Hook. Brit. Flor. p. 395, Hassall Freshw. Alg. pag. 330, n. 10, 



t. LXXXI, f. 1, PalmeUa frusiulosa Carm. mscr. — Thallo efl"uso, ' 



pulvereo, fragili, viridi; cellulis, globosis, 7 a. latis mediocribus, 

 in familias numerosas 40 y.. lat., membrana cell. abaviae araplissi- 

 ma, horaogenea, achroa, hyalina, involutas consociatis. 



Hab. in rupibus maritirais humidis Italiae, Suecise, Britanniae. 



17. Protococcus protogenitus (Bias.) Ilansg. Prodr. p. 144 in nota 1, leis 

 ChlorocoGCum protogenitum Rabenh FI. Eur. Algar. III, pag. 58 



p. p., Microhaloa proiogenita Bias. Algh. microsc. p. 47, t. XIX 

 (nou Menegh.), Microcystis protogenita Rabenh. Flor. europ. Alg. 

 11, p. 52. — La3te viridis, luteolo-viridis vel sordide sub.ierugineo- 

 viridis, in stratum tenue minus cohserons cumulatus :cellulis mi- 



