Spirogyra longata (Vaucher) Kütz.

IN THE
CRYPTOQAMIC HERBARIUM
FIELD MUSEUM OF NATURAL HISTOfcY
9523IIII
%ae Donated t,ntor1 History
,cue° to NY m 2015
Josephine E. Tilden. American Algae.
566. Spirogyra longata (Vaucii.) Kg. var. reversa (Hass.) Ktrchn.
Alg. Schles. 123. 1878.
Vegetative cells 35 mic. wide, 2-5 times longer than diameter; chloroplastid
single, making 2-3 turns in the cell; conjugation lateral (mostly two cells
alternating) ; zygote elliptical, 32 mic. wide, two times longer than wide,
bright orange yellow when mature.
Aberdeen, South Dakota.
Coll. David Griffiths Je 1898.
CRYPTOQAMIC HERBARIUM, FIELD MUSEUM OF NATURAL HISTORY
JOSEPHINE E. TILDEN
AMERICAN ALGAE
Century VI. Published 1902.
Received by exchange (ram the Farlow Herbarium ot Harvard Unlvendty
November 12,1988. Aeceeslon No. «075.
03047693