Spirogyra tuberculata Lagerh.

Wütrock, Nordstedt, Lagerheim. Algce <exsiccatce.
1379. Spirogyra tuberculata Lagerh. nov. spec.
8. cellulis extremitatibus non replicatis, vegetati vis diametro 2 - 4-|-
Pjo longioribus, chromatophoris singulis, spiralibus; cellulis sporiferis turni-
. > zygosporis ellipsoideis apicibus rotundatis, mesosporio duplicato, strato
jnterno fUSCo, verrucis irregularibus majoribus et minoribus ornato, externo
yälino lievi. Crass, cell. veg .35—37 ft ; crass, zygosp. 30—38 it ; long.
zygosp. 50—67 fi.
Conf. S. Australensis Möb.
Suecise ad Lassby backar prope Upsaliam 18 y 82
leg. beat. C. J. Johanson.
Determ. G. Lagerheim.
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