8(3 ZVaOPHYOEiE.
Desm. Ital. (1876), p. 39. Wood F. Water Algm U.S.
(1872), p. 132. Eabh. Alg. Eur. (1868), p. 168. Kirchner.
AK. Schles. (1878), p. 153. Wolle Desm. U._S. (1884), p.
80,° t. 18, f. 21, 22. Grunow. Desm. Austr. (1858), p. 501.
’Euastrum? suUohalum, Breb. iu Ealfs. Desm. (1848), p.
91, t. 32, f. 4. Breb. Liste Desm. (1856), p. 124. Nordstedt
Norges Desm. (1873), p. 10.
H ab. In pools.
Westmoreland, Wales; France, Germany, Austria, Italy,
Norway, United States.
g. 1. a, living frond; h,Plate X X X T I . empty fro n d ; c, end
views.
Cosmazium quadzatum, Ralfs. Ai
f . 9 .
n. Nat. Hist. (1844), xiv., t. 11,
Frond about twice as long as broad, constriction deep, linear,
segments quadrate, slightly protuberant on each side at the
base; with rounded angles at the ends, smooth, end view compressed
.
S iz e . Length 50-61 g ; diam. 30-37 g (Wille) ; length
59 g ; diam. 33-37 g (N.).
Nordst. Desm. Groenl. (1885), p. 7. Ealfs. Desm. (1848),
p 92 t 15, f. 1. Archer iu Prit. Inf. (1861), p. 731. Nordstedt
Desm. Arct. (1875), pp. 19, 38, 40. Hassall Fr. Alg.
(1845), p. 367. Lundell Desm. Suec. (1871), p. 47. Nordstedt
Norges Desm. (1873), p. 23. Petit Liste_^Desm. Paris
(1877), p. 30. Grunow Desm. Austr. (1858), p. 501. Brebis-
k n Liste Desm. (1856), p. 126. Eabh. Alg. Eur. (1868), p.
162. Wolle Desm. U.S. (1884), p. 59, t. 18, f. 8-10. Wille
Nov. Sem. (1879), p. 87. Nordstedt Desm. Spitz, (1872), p.
29. Kirchner Alg. Schles. (1878), p. 146.
Cosmarium cucumis h. quadratum, Klehs. Desm. Pruss.
(1879), p. 30. Jacobsen Desm. Denm, (1874), p. 199.
H ab. In pools.
Kent, Wales, Scotland ; France, Spitzbergen, Sweden, Norway,
Nova Zembla, Eussiaii Lapland, Greenland, Austria,
United States.
Plate X X X V I ., fig. 2. a, living frond ; h, empty frond; c, side view ;
d, end view.
Cosmazium b in e z v e , Lundell Desm. Suec. (1871), g. 49, t. 3 ,/ . 19.
Supposed to be British on the authority of the figure in Has-
sall’s F. W. Algae, t. 86, fig. 12. Is too doubtful to insert
here.
DESMIDIBiE. 81
Cosmazium p llc a tum , Reinsch. Alg. FI. (1867), g. 108, t. 9 ,f . 1.
Semicells in front view truncate-conoid or almost rectangular,
vertical and side views elliptical. Frond in front view not
deeply incised at the middle, about twice as long as broad ; cell-
membrane smooth.
Siz e . Length 80-58 g ; diam. 15-27 g (Ee.),
Barker Micr. Journ. xiii. (1873), p. 435,
H ab. Mountain pools.
Scotland ; Germany, Sweden.
Plate X X X V I ., fig. 3. a, living frond ; I, empty frond ; c, side view.
var. slu u o sum , Lundell Desm. Suec. (1871) g. 48.
Sides and apex of semicells slightly concave, with angles
prominent and rounded, amylaceous granule single.
Siz e . Length 38-45 g ; diam. 18-22 g (L.).
Nordst. & Wittr. Desm. Ital. (1876), p. 31. Nordstedt
Desm. Arct. (1875), p. 38.
Cosmarium quadratum var., Ealfs. Desm., t. xv., f. 1, c.
Cosmarium sinuosum, Wille Nov. Sem. (1879), p. 37.
H ab. On rocks.
Ireland; Nova Zembla, Sweden, Italy.
Plate X X X V I .,fig . 4. a, living frond; I, empty frond ; c,.side view.
Cosmazium Ham me z i. Reinsch. Alg. FI. (1867),g. I l l , t. x, f . l .
Semi-cells in front view truncately conical, almost trapezoid,
terminal margin straight and emarginate, lateral margins more
or less simply emarginate, end view regularly elliptic, side view
semi-elliptic or almost circular, transverse diameter a little
longer than the longitudinal ; cell-membrane smooth.
S iz e . Length 45 g (Ee.) ; diam. 20-24 g (W.).
var, H ib e zu icum .
About one-third longer than b ro a / lateral margins of semicells
concave, upper margins conv&o-truncate, in side view
rounded, a minute tooth-like protuberance visible just at the
suture, iu end view elliptic,—Archer Micr. Journ., xviii.
(1877), p. 304. •
Crowe Micr. Journ. (1878), xiii., p. 435. Lundell Desm.
Suec. (1871), p. 37. Archer Micr. Journ., xvii. (1877), p.
814. Wolle Desm. U.S. (1884), p. 79, t. 18, f. 27, 36, 38.
Wille Norges Alg. (1880), p. 32. Nordst. Desm. Greeiil.
(1885), p. 6. Schaarsohm. Magy. Desm. (1882), p. 267.
H ab. On wet rocks.
Ireland, Scotland; Germany, Sweden, Hungary, Greenland,
United States.
Plate X X X V I ., fig. 5. a, living frond; I, empty frond; c, side
view ; d, end view.
I;
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