

874 Conjugatce, Desmidiacese, Docidium. 



naliter [)Iicalis, jiixta apicem constrictis sed apice ipso late trun- 

 catis et diiatatis; sutura non prosiliente. 



Hab. in lacunis turfosis, sphagnetis per Germaniarn passim, in- 

 ter sphagna ad Beizigam (flor. Brandenburg.) (Rabenhorst) prope 

 ({ Neudamm » (Itzigsohn), prope a Hoyersworda -o (Preuss). ad 

 Upsaliam (Cleve) nec non ad (( Bergsbrunna, Bolltorp, Unnarjil » 

 in Suecia (Lundell), in Fennia (Klfving), in (( New .Jersey » Ame- 

 ricffi borealis (Wolle). 



7. Docidium sinuosum Wolle Desm. U. S. p. 51, t XI, f. 6, 8. — ^ic 

 Graciie, undulatum, leve, cylindraceum, 12-14 -j.. latum, diametro 

 20-24-plo longius; semicelluiis 8 stricturis prseditis; apicibus trun- 

 catis, rectis vel leniter concavis, in unoquoque augulo dente brevi 

 valido armatis; inflatione basali liaud plicata. 



Hah. \\\ (( New Jersey » Araericm^ borealis (Wolle). — Docidio 

 dilaialo (Cleve) Lund. proximnm. — Var. breve Wolle Desm. 

 U. S. p. 51, t. XI, f. 7 : dimidio brevius, semicellulis stricturis taa- 

 tum 4 donatis. Cum specie in America boreali. 



8. Docidium undulatum Bail. Microsc. Obs. in Smiths. Contrib. to 2106 

 Knowledge p. 36, t. I, f. 2, Archer in Pritch. Inf. p. 745, Rabenh. 



Fl. Eur. Algar. III, p. 145, W^ollo Desm. U. S. p. 51, t. II, f. 5, 

 — Leve, gracile, 10-12 y.. latum, cjlindricum, undulatum, latitu- 

 dine 18-20-plo longius, medio modice constrictum; semicellulis et 

 basi et apice truncatis et crenatis. 



}iah. in aqua dulci Florida^ (Bailey, Wolle), New Jersey Ame 

 ricaj borealis (Wolle). 



9. Docidium tridentulum Wolle in Hedwigia 18S5, p. 119, Desm. U. S. 2io7 

 p. 52, t. 10, f. 10. — Gracile, elongatum, 12-13 a. diam., lineare 



vel leniter attenuatum, leve; semicellulis basi inflata prominula 

 instructis, apice dentibus paucis magnis (plerumque 3) coronatis. 



Hah. in stagnis (( Pleasant Mills et Browns Mills, N. J )) Arac- 

 ricffi borealis (Wolle). 



10. Docidium denticulatum Grun. Desm. ins. Banka p. 13. t. 2, f. 19, 2103 

 Rabenh. Fl. Eur. Algar. III, p. 145. — Leve, Docidio truncato 

 Breb. afline, difl^ert statura multo graciliore et coronula dentium 

 miriutissimorum apices truncatos ornaatiura. 



Hah. in insula «Banka». 



B. Membrana punctata vel verrucosa vel costata vel tesselkita. 



11. Docidium burmense Josh. Burm. Desm. p. 651, t. XXV, f. 14. — 2109 

 Magnum, diametro I5-20-pIo longius; seraicellulis profunde constri- 



