882 Conjagatne, Desmidiacese, Displiinetium. 



a typicum Klebs Desra. p. 28. — Cellulis oblongis quasi biscocti- 

 formibus, non corapressis, diametro duplo longioribus, 36-60 ^ 18-25, 

 medio leviter constrictis, utroque polo rotundatis, a vertice per- 

 fecte orbicularibus, arabitu integerrirais ; seraicellulis ovali-cylin- 

 dricis; raembrana punctata. 



Hah. in stagnis, iuter algas varias, per totara Europam impri- 

 mis in Gallia (Brebisson), Vogesis (Lemaire), Britannia (Ralfs, 

 Archer, Cooke), Germania (De-Bary, Rabeniiorst, Klebs, Kir- 

 ciiner), Austria (Grunow), Bohemia (Schroeter, Hansgirg), Hun- 

 garia (Istvanffi), Suecia (Cleve, Lundell), Norvegia (Nordstbdt), 

 Dania (Jacobsen), America boreali (Wolle). 



8. Disphinctium subpalanguia (Elfv.) De-Toni, Cosmarmm subpalan- 2127 

 gula Elfving Anteckningar om Finska Desraidieer p. 14, f. 11. — 

 Parvum, oblongo-cylindricum, circiter lYo-pIo longius quam latum, 

 medio levissime constrictum vel eraarginatum; seniicellulis apicem 

 versus attenuatis, dorso truncato, lateribus convexis ; menibrana in- 

 distincte granulata, granulis in seriebus (plerumque 4) transversis 

 dispositis; a vertice visis circularibus; long. 28-32 u.., lat. 20-21 p.. 



Ilab. ad «Helsingfors» Fenniae. — Forma depauperatum Lagerh. 

 in Botaniska Notiser 1886, p. 37 et in Notarisia 1886, p. 146: cel- 

 lulis granulis fere seraper destitutis. In scrobiculis aqua pluviali 

 repletis prope Stoccolmara et Upsaliara Sueciae, saepe socio Syne- 

 chococco majoyn Schroet. (Lagerheim). 



9. Displiinctium quadratum (Ralfs?) Hansg. Prodr. p. 244, Cosma- 2i?8 

 rium Cucumis b quadraium Klebs Preuss. Desra. p. 30, Costna- 

 rium quadralum Ralfs in Transact. of the Bot. Soc. of Edinb. 



II, 1, p. 151, n. 9, t. XVI, f. 9, Brit. Desmid. pag. 92 ex parte, 

 t. XV, f. 1 non c!, Lund. Desra. Suec. p. 47!, Breb. Liste p. 126 

 ex p., Rabenh. Krjpt. Flor. v. Sachs. p. 198, FI. Eur. Algar. III, 

 p. 162, WoIIe Desm. U. S. p. 59, t. 18, f. 8-10, Cooke Brit. Desm. 

 p. 80, t. 36, f. 2. — Parvum, oblongo-quadrangulare, utroque polo 

 latissime rotundatum vel sabtruncatum, medio profunde constri- 

 ctura, diametro duplo longius, 50-64 « 30-37, isthmo 23-24 a. lato; 

 semicellulis subquadratis, sursum exigue angustatis, angulis in- 

 ferioribus breviter rotundatis, superioribus sublate rotundatis, la- 

 teribus leviter retusis; pyrenoidibus in utraque semicellula binis; 

 membrana levi. 



Ilab. iu aquis quietis, inter muscos madidos, locis paludosis, 

 in Anglia (Ralfs, Cooke, Klebs), Gallia (Brebisson, Petit), Sue- 

 cia (Lundell), Germania (Kirchner, Klebs, Rabenhorst), Au- 



