Pithophora varia Wille

• Region

  North America

• Country

  United States of America

• State/Province

  Minnesota

• County/Municipio

  Hennepin Co.

• City/Township

  Minneapolis

• Locality

  in quiet water

• Coordinates

  44.98, -93.2638

• Coordinate Uncertainty (m)

  11946

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Used GEOLocate Web Application to georeference precise locality. (High precision)

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

7 8 y iv TtoNEw\bRK
copyright reserved botanical gardei
Phycotheca Boreali-Americana. Collins, Holden, and Setchell.
983. Pithophora varia wme n. sp.
In quiet water, Minneapolis, Minnesota.
MISS E. BUTLER.
Individuals short, consisting of a sparingly branched frond; the
branches secund or alternate, rarely opposite, often arising
slightly below the cross wall. Little distinction between the
main stem (width 73-103 mmm.) and the primary and secondary
branches. The terminal cells are more slender (43-70 mmm.)
and only rarely end in helicoids. The cell wall is quite thin,
contents scanty. The resting akinetes, that arise either singly or
two or three in a series, have* thick walls, especially end walls,
and are either ovoid, cylindrical or somewhat irregular; they are
terminal or intercalary and arise both in the main stem and in
the branches, even in very short branches, which may consist of
two akinetes only. The terminal akinetes are always more or
less ovoid, the upper end more attenuate (length 150-213, width
64-69 mmm.) and arise either singly or in connection with ovoid
or cylindrical akinetes next below them. The intercalary
akinetes (length 70-240, breadth 60-112 mmm.) are either single
or two or three together; the following combinations can occur:
two ovoid; two cylindrical; one ovoid and one cylindrical; or.
one ovoid with one cylindrical on each side. Nearest related to
P. Cleveana Wittr.
N. WILLE, in litt.
02417859