r
storilibiis diametro ('A s— V22'" = 0,0031— 0,0041") aequalibus vcl
'/ 2—I'A'plo longioribus, fruotiferis vix tumidis, diametro aequalibus voi
longioribus ; fasciis spiralibus 3—4, remotis, angustis, anfractibus 'A—
^ 4, laxissimis ; zygosporis globosis. v. v.
Hab. in aquis quietis limpidis, ra ra , in Saxonia (Radeberg ad
Dresdam; L. R.), in Lusatia super, („im weisscn Luch“ : Burkliard),
Thuringia (Nordhausen: Kützing), in regno Wurtombergico (Allerheiligen:
G. Zeller), Marchia (Belzig: L. R.), Silesia (Nimkau; Hilse), Austria
(Berndorf: A. Grunow).
Sp. setiformis (Roth) Ktz. (1. 0. Eabenh. 1. c. Alg. 134 ct
1479! Nave in Briinn. Yerh. 1864. p. 49. N. 348. Zygnema inter-
ruptnm Hassall Freshw. Alg, p. 140. N. 3. T. XXI. Conf. setiformis
Roth Catal. bot. III. p. 266.). Sp. saturate viridis, lubrica; artioulis
sterilibus diametro ('As — 'A-o'" = 0,0036 — 0,0045") aequalibus vel
paulo longioribus, fructiferis ad genicula paullum constrictis ; cytiodermate
orasso distincte lamelloso ; fasciis spiralibus latis, dentatis, densis,
subvertiealibus ; zygosporis globosis. v. v.
Hab. in iisdem cum antecedente loois, passim. In Saxonia (Dresden,
Leipzig, Freiborg, Loebau: L. R., Buinheim, Porzler), Marchia (Berlin:
A. Grunow, Neudamm: Itzigsohn et Rothe), Bohemia (Marienbad: L. R.,
Sohluckenau: Karl), Moravia (Briinn, Sohimitz : J. Nave), Silesia
(Strehlen: Hilse), Austria (Wiener Neustadt: A. Grunow, Kirchdorf:
Schiedermayr), Comitatu Tyrolensi (Bozen, Klobenstoin et multis aliis
loois: de Hausmann), Italia super. (Venedig, Padua: Titius) etc etc.;
in Anglia (Cheshunt: Hassall).
Sp. crassa Ktz. (Alg. exs. N. 98. Phyool. gener. p. 280. N. 10.
T. 14. F. IV. Tabul. phyool. V. p. 9. T. 28. F. II. Rabenh. Handbuch
II. 2. p. 121. Krypt. Flor. v. Sachs, p. 211. Alg. N. 3 9 7 .
Desmaz. Cr. de Fr. ed. nov. 148! Bad. 505. Reinsch Algenfl. p. 211.
Zygnema serratum Hassall Freshw. Alg, p. 140. N. 4. T. XXIII. F. 1
et 2.). Sp. sordide viridis, denique luteo-fuscescens, setae orassitie,
siocando chartae minus adhaerens, rigida; artioulis sterilibus diametro
('/is —'/lo '" = 0,0049—0,0061") aequalibus, (nonnunquam aliis duplo
longioribus), post divisionem faotam dimidio brevioribus; cytiodermate
tenui homogeneo, genieulis levissime constrictis; fasciis spiralibus 4 ,
sublatis, incise-profonde dentatis vel tuberculatis, irregulariter remotis,
nonnunquam subvertiealibus; zygosporis globosis, maturis badiis, late
elliptiois vel ovoideis, sporodermate aobroo hyalino, homogeneo. v. v.
b. Forma artioulis omnibus diametro sesqui- usquo duplo longioribus
(Sp. Heeriana Naegeli in Ktz. Spec. p. 442. N. 56. Tabul. V. T. 28.
F. III. Rabenh. Alg. N. 713, 986, 1575! Bad. N. 504. Erb. 763!
Nave in Brünn. Verh. 1864. p. 49. N. 349.)
Hab. in fossis, fodinis, per totam Europam passim, c gr. in Anglia
(Cheshunt; Hassall. Withyham : Jenner, Lincoln; Carrington), Gallia
(Abbeville ; Desmazières), in multis loois Germaniae, Austriae, Helvetiae,
Italiae.
Species partim duhiae partim mihi ignotae.
Spirogyra sericea Zanardini (Flor. venet. prodr. p. 38.), sicoata
luteo-nitens, mucosissima; artioulis diametro ('/25'") octuplo longioribus ;
genieulis parum constrictis; spiris simplioibus tenuibus exsiooationo
ovanidis. — In fossis Italiae, ad Mestre.
Spirogyra ovigera Montagne (Syll. p. 463. N. 1644. Cryptog.
guyanens. Algae N. 48.), filis flexuosis obscure viridibus; articulis
diametro sosqui-sextuplo longioribus, spiris ternis densis ; sporis ovoideo-
ellipsoideis. — In rivulis ad Cayennam (Leprieur).
Spirogyra cryptoptycha Naeg. (Beitr. II. p. 191.). Sp. artioulis
sterilibus diametro ( '/ 1 3 3—'/Ao'") 5—14 pio longioribus, fertilibus parum
tumidis 2—4-plo longioribus ; zygosporis elliptico-ovalibus, plerumque '/4 1
Ass'" (0,055 — 0,060 mm.l longis, diametro I'/a — 2 - pio longioribus,
sporodermate crasso fusco. — Ad Monachium (Nägeli).
Spirogyra Hornschuchii Kersten (Archiv der Naturg. 1843. IV.
p. 342. T. XI. F. 2.). Sp. artioulis diametro ('/loo'") 2—3-plo longioribus.
— In Germania.
Spirogyra pellucida Ktz. ? (Spec. Alg. Zygnema pelluoidum Hassall
Freshw. Alg. p. 143. N. 9. T. XXV. F. 1 et 2.), artioulis diametro
('Ao'" Ktz.) 6—7-plo longioribus, fructiferis ventricosis; fasciis spirali-
bus 2 — 3 (sec. Ktz. 1.), anfractibus laxissimis 1 — I'/A se secantibus
(anfractus 4 indioat Ktz.); zygosporis globosis. — In Anglia.
Spirogyra alpina Ktz. (1. c.), dilute viridis, artioulis diametro
— '/ss'") 2 —^3-pio longioribus. — In aquis glacialibus Helvetiae,
in oomit. Tyrolensi australi legit de Hausmann teste Grunowio, mihi
ignota.
Spirogyra litorea Zanard. (Flor. Venet. p. 38.), exsiocata saturate
castanea; articulis diametro ( '/ 30'") quintuplo longioribus, genieulis oon-
tractis ; fasciis spiralibus tribus (exsiooatione) persistentibus. — Venetiis,
in fossis ad „Lido“.
Spirogyra hifaria Ktz. (Tabul. phyool. V. p. 10. N. 1480. =
Zygnema bifarium Bailey), oellulis oyiindricis vel tumidis, in utroque
fine replioatis, diametro 6 — 7-plo longioribus; fasciis spiralibus 1 — 2,