Pikea pinnata Setch.

  • Filed As

    Dumontiaceae
    Pikea pinnata Setch. ( type )

  • Collector(s)

    W. A. Setchell s.n., 18 Feb 1898

  • Location

    United States of America. California. San Francisco Co. San Francisco. growing on stones at and just below extreme low water mark at Fort Point.

  • Habitat

    Growing on stones at and just below extreme low water mark. Growing on stones.

  • Identifiers

    NY Barcode: 00900591

    Occurrence ID: 4d9ff7df-3cbd-4ae1-84fe-bb2dd37b5a4c

  • Exsiccatae

    Phycotheca Boreali-Americana, a collection of dried specimens of the Algae of North America

    Exsiccatae Number: 648

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  • Region

    North America

  • Country

    United States of America

  • State/Province

    California

  • County/Municipio

    San Francisco Co.

  • City/Township

    San Francisco

  • Locality

    growing on stones at and just below extreme low water mark at Fort Point

  • Coordinates

    37.8106, -122.477

  • Coordinate Uncertainty (m)

    264.569

  • Georeferencing Method

    Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Fort Point. Measured from coord. to farthest extent of the point to find linear extent (253 m). Input info. into MaNIS Georef. Calc. to find uncert. rad. (Bounded Area).

  • Geodetic Datum

    WGS84

  • Distribution

    Map all specimens of this taxon

Phycotheca Boreali-Americana. Collins, Holden, and Setchell.

648. Pikea pinnata setcheii mss.

Growing on stones at and just below extreme low water mark at

Fort Point, San Francisco, California, Feb. 18, 1898.

W. A. SETCHELL.

Fronds reaching a height of 25cm., broadly pyramidal in outline ;
main stem sometimes prominent but obscured in all larger plants by the
long and flexuous primary branches, decidedly flattened and usually nar-
row ; primary branches arising irregularly; secondary branches and
branchlets more uniform and arranged in a very regularly pinnate fashion ;
cystocarps situated in the short and much swollen tips of the branchlets,
considered by Schmitz to be characteristic of the genus Pikea; structure
of the frond as in P. California Ilarv.

The specimens referred to this species have been among the assem-
blage of forms passing under the name of P. Californica. The habit of
the plant is totally different and constantly so.

W. A. S.

6 7 8 9 10 w, -v T V

The New York
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COLUMBIA

00900591