Rhodoglossum polycarpum J.Agardh

• Region

  North America

• Country

  United States of America

• State/Province

  California

• County/Municipio

  Monterey Co.

• City/Township

  Carmel Bay

• Locality

  in great abundance upon rocks between tide marks

• Coordinates

  36.5447, -121.931

• Coordinate Uncertainty (m)

  4511.57

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Located coordinates of geogr. center of Carmel Bay. Measured from coordinates to farthest extent of the bay to find linear extent (4500 m). Input information into MaNIS Georef. Calc. to find uncertainty radius (Bounded Area).

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Phycotheca Bore ali-Americana. Collins, Holden, and Setchell.
538. Rhodoglossum polycarpum (Harv.) J. Ag.?
J. G. Agardh, Sp. Alg., "Vol. Ill, p. 186, 1876; Florideernes Morpho-
logi, PI. XI, figs. 1-3,1879 ; Till Alg. Syst., part 3, p. 26,1884.
Iridea polycarpa De Toni, Sylloge Algarum, Yol. IV, p. 190,1897.
In great abundance upon rocks between tide marks, Carmel Bav,
Monterey County, California, Dec. 31, 1896.
W. A. SETCHELL and C. P. NOTT.
This plant is a true Rhodoglossum, a genus differing sufficiently from
Iridea to be retained separate. As to the species, forms of the Californian
plant answer well either to B. polycarpum or to R. lalissimum. The only
accessible specimen is one in Herb. Farlow, collected by Yon Mueller,
distributed by Agardh, and labelled by him ? R. latissimum ?? It is only
a fragment, but agrees well with our plant in color, texture, size of
cystocarps, etc. Our plant is very variable in size and habit, possesing a
distinct stipe, lanceolate, broader or narrower, simple or proliferating
blade, and is frequently mistaken when in tetrasponc condition for
cystocarpic Grateloupia Gutleriae. It reaches a length of 75 cm. with a
breath of 15 cm. It grows in some abundance along the coast from Carmel
Bay in Monterey County to Puget Sound.
NFW YORK BOTANICAL RARDFN
02189257