Conferva major f. ferruginea Tilden

• Region

  North America

• Country

  United States of America

• State/Province

  Wyoming

• Locality

  Yellowstone National Park, Echirus Geyser, in acid waters of overflow

• Coordinates

  44.722, -110.702

• Coordinate Uncertainty (m)

  34

• Distribution

  Map all specimens of this taxon

C0172641F
~c<
IN THE
CRYPTOGAMIC HERBARIUM
FIELD MUSEUM OF NATURAL HISTORY
95194°
fHE HERBARIUM OP
FRANCIS DROUET
Josphine E. Tilden. American Algae.
272. Conferva major (Kg.) Rabenh.forma ferruginea Tilden. Observations
on some West American Thermal Algae. Bot. Gaz. 25: 91, 92. pi. 8.
f. 6-8. F 1898.
Brownish (ferrugineus, fulvus); encrusted with ferric-oxide (Fe 203),
sometimes in narrow bands, generally forming extensive coatings; cells
13-20 mic. in diameter, twice the diameter in length, after division
equalling the diameter.
In acid waters of overflow. Temperature 7^4° C.
Echirus Geyser, Yellowstone National Park.
Coll. W. H. Weed, 1897.
The width of the filament in the form is somewhat narrower than those
of the species. The specimen shows well the “letter H” appearance of
the ruptured membrane which De Toni makes a generic character.
Field Museum of Natural History
Algae Donated to NY in 2015
Determined by Grace S. Phinney
3 SoThP«-
CRYPTOGAMIC HERBARIUM, FIELD MUSEUM OF NATURAL HISTORY
JOSEPHINE E. TILDEN
AMERICAN ALGAE
Century III. Published 1898.
Received by exchange from the Farlow Herbarium of Harvard University
November 12,1988. Accession No. 6075.
C0172641F
03685067