Spirogyra crassa (Kütz.) Kütz.

	0 1 2 3 4 5 6 7 8 9 10 ! cm copyright reserved	The New York Botanical Gardén
, „„1 - , ............... „		
Wittrock et Nordstedt. Alga exsiccatcB.
744. Spirogyra crassa Kiitz.
F. fasciis chlorophyllaceis circa 12.
a. Sueciæ in fossis ad Hor in Scania lây^SB
leg. prof. 5. Berggren.
b—d. Sueciæ in fossis ad Kallby pi’ope Lund; b et c 18\-.t;84
d 18^84.
0. Nordstedt.
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