Phormidium interruptum var. rigidum N.L.Gardner

  • Filed As

    Phormidiaceae
    Phormidium interruptum var. rigidum N.L.Gardner

  • Collector(s)

    J. N. F. Wille 300 e, 07 Jan 1915

  • Location

    Puerto Rico. Coamo Springs, on bark of tree.

  • Habitat

    On bark of trees. On bark of trees.

  • Identifiers

    NY Barcode: 00953602

    Occurrence ID: a97b57ec-8381-4d9c-aeb8-0bd880eed346

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  • Region

    West Indies

  • Country

    Puerto Rico

  • Locality

    Coamo Springs, on bark of tree

  • Coordinates

    18.0372, -66.3736

  • Coordinate Uncertainty (m)

    154.569

  • Georeferencing Method

    Georeferencing Quick Reference Guide, Version 2012. Located coord. of geogr. center of Coamo Thermal Hot Springs. Meas. from coord. to farthest extent of the springs to find linear ext. (143 m). Input info. into MaNIS Georef. Calc. to find uncert. radius (Bounded Area).

  • Geodetic Datum

    WGS84

  • Distribution

    Map all specimens of this taxon

NEW YORK BOTANICAL GARDEN

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THE NEW YORK BOTANICAL GARDEN

DARIUS OGDEN MILLS FUND

FRESH-WATER ALGAE OF

Phormidium interruptum rigidum var. nov.

Filaments considerably tortuous, rigid; trichome 4.8-5.2 (j
diam., not constricted; cells up to 2 times as long as broad; end
cell rounded and end wall very slightly thickened, color very pale
purplish-olive; sheath relatively thick, smooth, firm, hyaline to
dark brown at maturity.

Growing on bark of trees, Coamo Springs, no. 300 e, type;
and on the wall of a church, Sabana Grande, no. 952; on rocks
near Coamo Springs, no. 358 a.

The variety rigidum differs from the species in having longer „
cells and a firm, rigid, brown sheath.

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Det^rmin^^y*Francis Drouet

00953602