Protococcoideae, Palrnellaceae, Cbaracium. 025 



Hansg. Pro.lr. p. 123. Wittr. et Nonist. Alg. gxs. n. 151, A. Braun 

 1. c. p. 43, n. 9, t. V, D. — Cellula iaitio erecta, aequali, netate 

 provectiori subin:equali, subrecta, plus aiinus iiiclinata, plerumque 

 longe stipitata, hnceolata, 20-25 (rarius 45)^6,5-10 (stipite in- 

 cluso), cuspidata, apice acliroo lijaliiio subrocto vel nontiihil in- 

 curvo, haud raro subrostriformi producto; stipite gracili, elonga- 

 to, basi nodoso-incrassato luteoio vel fuscescente, apice in cellu- 

 lani sensim dilatato, cellula3 diametrum longitud. longitudine aiquan- 

 te vel subattingente, rarius superanto,- cytioplasmate viridi, gra- 

 nuloso, pyrenoide indistincto. 



Ilab. m stagnis ad algas filamentosas, per Germaniara, Bohe- 

 miam, Plungariam, Rossiam etc. 



23. Characium Hookeri (lleinsch) Hansg. Prodr. p. 123, Dactylococ- i^i^s 

 Gus Hooheri Reinsch Contrib. I, t. 11. — Solitarium vel grega- 

 rium ; cellula cylindraceo-oblonga, superne rotuudata, 15-24 » 4-8, 

 basi in stipitem subajquilongum hyalinum abeunte; membrana te- 

 nui, arcte adnata. 



Hab. sllI Cyclopida aliaque animalcula iu Bavaria (Reinsch) 

 et in Bohemia (Hansgirg). — Generi Characw verisimiliter etiam 

 pertinet, suadente cl. Hansgirg 1. c, Dacl>./lococcus De-Bar//anus 

 Reinsch Contrib. I, p. 78, t. 11, quod ipse vero huic generi, am- 

 bagibus omissis, adscribo. 



24. Characium ornithocephaium A. Br. Alg. Unicell. pag. 42, n. 8, i464 

 t. III, C, Rabenh. Fl. Eur. Algar, III, p. 85, Kirchn. Alg. Schles. 



p. 102, Cooke Brit. Freshw. Alg. p. 48, t. 19, f. 5. — Cellula ab 

 initio inaequali, iucurva, distincte stipitata, postea latere inferiore 

 tumida, semiovata, 25-30 a. longa, sub;iequilata, apice in rostrura 

 rectum vel inclinatum hyalinum producta; stipite elongato, gra- 

 cili, cellul^ dimidiam vel tertiam partera, rarius cellulara totam 

 longitudine ajquante, basi nonaihil discoideo-dilatato; cytioplasraa- 

 te intense viridi, granuloso, pyrenoide centrali vel laterali. 



Hab. in stagnis pr. «Berlin» (A. Braun), pr. «Berndorf» ad 

 Vindobonara Austriae (A. Grunow), ad Dresdara Gerraanins (L. Ra- 

 beniiorst), in Silesia (0. Kirciiner), in Britannia (Cooke), in Bel- 

 gio (De-Wildeman), in Rossia (Riabinine). 



25. Characium Rabenhorstii De-Toni, Hi/clrianum ovale Rabenh. Fl. 14''.5 

 Eur. Algar. III, pag. 87 nec Characium ovale Lacost et Suring. 



— Cellula ovali vel oblongo-elliptica, erecta, ^equali, subobtusa, 

 10-18 * 8-9, deraum vertice aperta, inferne citius in stipitem atte- 

 nuata; apertura integra, quasi constricta; stipite gracili hyalino, 



40 



