02 Confecvoidea3, Cyliadrocapsaeeie, Cylindrocapsa. 



ne vegetativa cellularum; generatio zygotis. Oogonia et antheridia 



in singulis cellulis vegetativis evoluta. 



CYLINDROCAPSA Reinsch [1867], Algenfl. von Mittel-Franken p. 66, 

 (Etym. culinclrus et capsa seu capsula). — Kirchn. Krypt. Fl. Schles. 

 p. 64, Hansg. Physiol. u. Algol. p. 127 et Prodr. p. 226, Wolle 

 Freshw. Alg. U. S. p. 101, Cooke Brit. Freshw. Alg. p. 22, Tlor- 

 mosporcv spec. Wolle. — Filameuta ut plurimum brevia, e cellulis 

 oblongis vel subglobosis chromatophoris subinconspicuis membra- 

 naque hyalina utrinque distincte stratosa plerumque (ante foecun- 

 dationem), poro laterali in superiori parte, raro in media aperta 

 donatis, efFormata. 



Propagatio: zoogonidia in cellulis vegetativis singulis per pla- 

 smatis divisionem in 2-4 cellulas filiales (microzoogonidia), raro 

 unicam (macrozoogonidia), subglobosa vel ovata, 5-10 u. cr., ma- 

 cula minuta rubra, vacuolo parvo contractili ciliisque binis subti- 

 lissimis apice hyalino instructa. Zoogonidia dein imraobilia sine co- 

 pulatione germinantia. 



Generatio: oogonia e cellulis singulis vegetativis vesiciformi- 

 inflatis orta, oosporam singulam globosam vel ovatam e toto cel- 

 lulae oogonicse plasmatae eff^ormatara foventia; oogonii membrana 

 3-6-stratosa, hyalina; oosphrera e rufo-flavo aurantio-rufa, mera- 

 brana duplici cincta. 



Antheridia in iisdem ac oogonia filamentis evoluta, e partitio- 

 ne contentus cellulas vegetativfe in 2-4-celluIas filiales, tegumen- 

 to proprio haud obvolutas, contiguas vel superpositas, omnes 2 

 antherozoidia fusiformia, flava, 2-ciIiata, vacuolis contractilibus 2 

 apice hyalino instructa foventes orta. 

 1. Cylindrocapsa involuta Reinsch Algenfl. von Mittel-Franken p. Q^Q», 249 

 t. 6, f. 1, Kirchn. Alg. Schles. pag. 65, Archer in Grevillea III, 

 p. 40, Cooke Drit. Freshw. Alg. p. 22, t. 9, f. 3. — Cellulis ve- 

 getativis breviter cylindraceis, globosis vel ellipticis, 23-30 ;jt.. cras- 

 sis, diametro Vo-lV^-l^iigioiibus, membrana crassa liyalina, distin- 

 cte lamellosa h. e quadruplici circumvolutis; oosporis globosis vel 

 oblongis, raembrana levi, hyalina instructis; oogoniis 42 u.. diara.; 

 oosphioris 24 y.. diam.; antherozoidiis 15 [x. longis. 



Jlab. inter alias algas imprimis e genere Rh i zocl on io, Me- 

 socarpo et Conferva pr. ((Erlangen)) Bavaria? (Reinsch), pr. 

 Rreslau Silesia} (Kirchner), in Ilibernia (Auchru), in Belgio (Dk- 

 Wii,nRMAN) et in Rossia (Artari), 



