642 Protococcoideae, PalmellaceiTO, Pliilozoon. 



2. Zoochlorella parasitica Brandt L c. — Corpusculis 1,5-3 u. diam. 1509 

 Hab. in Spongillis etc. 



ZOOZANTHELLA Brandt [1881] in Verh. der Physiol. Gesellsch. zu 

 Berlin 1881-82, n. 4-5. Cfr. Botan. Zeit. 1882, pag. 248-254 et 

 Just Bot. Jahresb. 1881, p. 335 (Etyra. zoon animal et zanihos 

 flavus). — Cellulae flavoe intra corpora Radiolarwrum, nonnulla- 

 rura Hydrozoariorum et AcUniarum vigentia. 



1. Zoozanthella nutricula Brandt 1. c. - isio 



Hab. in Collozoo inerme, in nonnullis Polycyttariiset 

 M onocy ttar i i s. 



PHILOZOON Geddes [1882] in The Nature vol. XXV, p. 303-305. Cfr. 

 Just Bot. Jahresb. 1882, p. 295-296 (Etym. philos araicus et zoon 

 animal). — Cellulae flavae. 



Obs. Fortasse vix a Zoozanthella Brandt distinctum. 



1. Philozoon Radiolarum Geddes I. c. isii 



Hab. in Radiolariis 



2. Philozoon Siphonophorarum Geddes 1. c. 1512 



Hab. in S i p honop ho r is. 



3. Philozoon Actiniarum Geddes 1. c. 1513 



Hab. in Actiniis 



4. Phiiozoon Medusarum Geddes 1. c. 1514 



Hab. in Medusis. 



Subfamilia quarta Tetrasporeae (Naeg.) Klebs arapl. 



Telrasporece Naeg. [1849] Gatt. einzell. Alg. p. 63, em. Klebs [1883] Orgaiiis. 



einig. Flagell. in Unters. bot. Inst. zu Tiibingen I. Band. II. Hert, De-Toni 



[1888] Consp. Cbloroph. in Notarisia 1(1, n. 10, p. 451. 

 GelaUnosce Kirchn. [1879] Alg. Schles. pag. 106 excl. parte, Hansg. [1888] 



1'rodr. p. 126. 



Cellulse singula} tegumentis mucosis, confluentibus in farailias ge- 

 latinosas minutissimas vel etiam macroscopicas plerumque forraa ir- 

 regulares, adfixas vel liberas conjuncta?. 



Multiplicatio: 1. bipartitione vegetativa cellularura; 2. macro- et . 

 micro-zoogonidiis (microzoogonidiis srppius inter se copulantibus); 3, 

 cystis. 



