592 Pln-eozoosporinae, PliMoeapsaceoe, Plifeocystis. 



?GL(EOTHAMNION Cienk. [1880] Hericht ein. Excurs. z. Weissen Meere 

 (idiouuite rossico!) (Etym. gloios gelatinosus et thamnos frutex), 

 De Toni Syst. Uebers. Fucoid. 1891, p. 182, non Gloiothamnion 

 Reinb. — Thallus adultus chroolepideus, epiphyticus; contentus 

 celluhirum flavescenti-brunneus ; cellulse ampliores, hyalino-tuni- 

 catie hinc inde in filamentis prsesentes. 



Obs. Genus hoc ad Ectocarpaceas dubie trahit clarus phyco- 

 logus Kjellman. Cfr. Alg. of Arctic Sea p. 285. 



1. Gloeothamnion palmelloides Cienk. I. c. fig. 12-18! (et f 19?), 1035 

 KJellni. Alg. of Arctic Sea p. 285. — Characteres generis. 



Hah. in mari Albo (Ciexkowski). — An formaj differentium ge- 

 nerum confus;e? 



PULVINARIA Reinh. [1885] Mater. zur Morph. und Syst. Alg. Schwarz. 

 Meor. (rossice), p. 39 (Etym. puloinus propter colonias rotundato- 

 hemisphericas pulvinatas), De Toni Syst. Uebers. Fucoid. 1891, 

 p. 182. — Cellulaj sphferica? vel subsphfericae, phajophoris olivaceo- 

 fuscis quaternis prsditffi, in familias ad instar Gltvocapsce conso- 

 ciatre et gelatina in colonias rotundatas vel hemisphtericas pulvi- 

 natas conjunctse. Propagatio (?an generatio) zoogonidiis (zoosporis 

 Reinh.) ovoideis, ciliis binis lateralibus (sicut in aliis Plh-eozoospo- 

 reis dispositis) et phfeophoro unico instructis. 



1. Pulvinarla algicola Reinli. I. c. p. 39, t. 2, f. 1-8. — Characteres 1036 

 iidem ac generis. 



Hah. ad varias algas prope Sebastopolim in mari Nigro 

 (Reinh.vrd). — Coloniaruni diam. 1-2 mm.; diam. cellularum cir- 

 citer 9,5-10 \i..; zoogonidia circ. 6 « 4.3. An huc Glwocapsm sp. in- 

 nominata Cienk. Bericht iiber die Excursion zum Weissen Meer. 

 1880. t. 1, f. 6. 



PH/EOCYSTIS Lagerh. [1893] in Botaniska Notiser 1893, p. 32-33 

 (Etym. phaios bfunneus et cystis vesica), Tetrasporcc sp. Hariot, 

 ])erb. et SoL, A. Br. — Thallus sjepius bullosus, globosus, flave- 

 scens; cellulaj plerumque quaternatim dispositas, phaeophoris instru- 

 ctae; zoogonidia (zoosporie) divisionc contentus cellularis succeda- 

 nea orta, subpyriformia, ciliis typice Pha;ozoosporearum. 



Obs. Genus Pha^ocystis, saltem e doscriptione iconibusque, milii 

 videtur Pulvinaria; Reinii. perafrine. nisi idem; attameii millis spe- 



