Protococcoideiej Paliiiellaceae. 559 



arcte adiiata, hyalina instructx;, polo luiico ciliiim siiigulum, elon- 

 gatum, flagelliforme gerentes; chloropliora obtuse stellato-Iacinia- 

 ia, pleruraque in unaquaque cellula 2, magna, pyrenoidem singu- 

 lum globosum obvolventia; nucleus majusculus, globosus, in me- 

 dio cellul{« situs; vacuolum contructile ad cilii insertionem extans; 

 macula pigmentalis haud prsesens. 



Propagatio (in statu quiescente ciliis deciduis) bipartitione to- 

 tius contentus cellularum repetita intra tegumentum raembrana- 

 ceum vel mucosum in 2-i cellulas filiales. 



1. Cylindromonas fontinalis Hansg. Prodr. Algenfl. von Bohmen i34i 

 p. 107, f. 55, Wittr. et Nordst. Alg, aq. dulc. exs. n. 750'72- — 

 Cellulis agilibus oblongo-cylindraceis, utrinque rotundatis, 15-32 c: 

 G-15, plerumque taijtum apice superiori ad insertionis situm hya- 

 linis, cilio longitudine corpus celluloe aequante vel paullo supe- 

 rante; chlorophoris pyrenoidem 4 a. circ. crassum foventibus; nu- 

 cleo centrali, magnitudine pyrenoidis vel parum ultra; membrana 

 cellulari tenui, hyalina, non contractili. 



Hab. in fontibus, rivulis e(c, ssepe aquam colore viridi tingens 

 sociis Stigeoclonio lenui, Confervd bombycind et nonnuUis Dia- 

 tomaceis pr. u Johannisbad et Adams)) circa « Neu Bistritz)) in Bo- 

 heinia (Hansgirg). — Cellulce (luce difl"usa) negative phototactica^ 

 videntur; zoogonidia e cellularum contentus repetita bipartitione 

 orta, 2-4 majora vel 8-10 minora, circ. 8-10:;; 4-5. A Clilamydo- 

 monade obtusa A Br. {Chlamyd. grandis Stein Infus. III, 1, t, 15) 

 quoB cilia bina, stigma v, maculam pygmentalem rubram linearem 

 et teguraentura araplura. praebet statim dignoscitur, 



Familia XXITI. PALMELLACEiE (Decaisne) Naeg. em. 



Palmellaceoe Decaisoe [1842] in Ann. Scienc. Nat. II ser., XVII, p. 327 (Pat- 

 ineltete) Naeg. [1847] Neuere Alg. Syst. p. 154 ex parte, [1849] Gatt. ein- 

 zell. Alg. p, 61, 



ProlococcacecB Naeg, [1847] Naeg, Alg. Syst. p. 154 ex parte. 



Piolococcece Trevis. [1842] Prosp. fl. Eugan. p. 57 p. m. p. 



Protococcidce Lindl. [1847] Veg. Kingd. p. 18, 



Protococcinte Reielienb. [1841J Nomencl. p. 17 p. m. p. 



Coccofhalke Trevis, [1848] Alglie coccotalle p, 9 et 99 ex parte, 



Thallus uni- vel adparenter pluri-cellularis h, e. cellulis in fa- 

 milias seu coenobia consociatis; contentus cellularum chlorophora for- 

 raa varia, sa^pe ha>matochroraate CKlata fovens, 



