Petrocelis cruenta J.Agardh

• Region

  North America

• Country

  United States of America

• State/Province

  California

• County/Municipio

  San Francisco Co.

• City/Township

  San Francisco

• Locality

  Land's End, on rocks at low tide

• Coordinates

  37.7833, -122.502

• Coordinate Uncertainty (m)

  1441.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Land's End. Measured from coord. to farthest extent of the park to find linear extent (1430 m). Input info. into MaNIS Georef. Calc. to find uncert. rad. (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Josephine E. Tilden. American Algss,
202. Petrocelis cruentaj. Ag. Sp. Alg. 2:490. 1852,
Thallus dark reddish-purple, gelatinous-coriaceous, horizontally expanded,
adhering closely to substratum; filaments united below, free above.
Sterile,
On rocks at low tide.
Land?s End, San Francisco, California,
J. E. T. 11 Jl. 1897.
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Thallus dark reddish-purple, gelatinous-coriaceous, horizontally expanded,
adhering closely to substratum ; filaments united below, free above.
Sterile,
On rocks at low tide.
Land?s End, San Francisco, California,
J. E, T, 11 Jl. 1897.
NEW YORK BOTANICAL GARDEN
02184964
02184964