Zygnema stellinum (O.F.Müll.) C.Agardh

CRYHTOUr.VlIC HERBARIUM
HE..I) MUSEUM OF NATURAL HISTORY
952ÜÎ-*
Josephine E. Tilden. American Algae.
273. Conferva major (Kg.) Rabenh. forma gypsophila Tilden Observations
on some West American Thermal Algae. Bot. Gaz. 25: 91.pl. 8. f. 9-
11. F1898.
Forming white or yellowish masses; filaments encrusted with crystals of
gypsum; cells 10-20 mic. in diameter, twice as long as wide, after
division equalling in length the diameter; cell contents granular, color-
less; cell membrane thick.
Lying near vent of spring. Temperature 66°.
Norris Geyser Basin. Yellowstone National Park.
J. E. T. 27 Je 1896.
This plant likewise differs from the species in having a narrow filament.
Little spiny or lobed masses of gypsum, a centimeter in thickness, are
found entwined with the threads.
CRVPT08AMIC HERBARIUM. FIELD MUSEUM OF NATURAL HISTORY
JOSEPHINE E. TILDEN
Field Museum of Natural History
Algae Donated to NY in 2015
AMERICAN ALGAE
Century III. Published 1898.
Received
by exchange irom the Farlow Herbarium of Harvard Unlveralty
November 12,1988. Acoeiiioii No. 6076.
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