Ital. (1867), p .38, t. 3, f. 19. Eabh. Alg. Eur. (1868), p. 159.
Klebs. Desm. Pruss. (1879), p. 41. Nordst. Desm. Groiil.
(1885), p. 7. Schaarschm. Magy. Desm. (1883), 264.
Heterocarpella tetraophthalmvm, Kutz. Syn. (1838), I. 87.
Euastrum tetraophthalmum, Kutz. Phy. Germ. (1845), p. 136.
H ab. I n pools.
Sussex, Hants, Surrey, Gloucester, Westmoreland, Cornwall,
Wales, Scotland ; France, Germany, Sweden, Norway,
Russian Lapland, Italy, Spitzbergen, New Zealand.
Plate X X X V I I I . , jig. 1. a, living ; frond ; I, empty frond; c,
Bide view ; d, end view.
Cosmazium B z eb ls so n ii. Meneg. Syn. Desm. (1840), p . 219.
Frond somewhat longer than broad, constriction deep,
linear ; segments semi-orbicular, rough all over with somewhat
elongated conical scattered pearly granules ; end view elliptic.
Size. Length 50 g ; diam. 4 3 g (D .) ; diam. 45-65 g (Wo.) ;
length 110 g ; diam. 80 g (0 .).
Ralfs. Desm. (1848), p. 100, t. 16, f. 3. Archer in Prit.
Inf. (1861), p. 732. Delponte Desm. (1878) t. 9, f. 17-22.
Cleve Sver. Desm. (1864), p. 488. Lundell Desm. Suec.
(1871), p. 27. Nordstedt Norges Desm. (1873), p. 12. Nordstedt
Desm. Arct. (1875), p. 40. Wood F. Water Algm U.S.
(1872), p. 128. Lemaire Desm. Vosg. (1883), p. 19. Wolle
Desm. U.S. (1884), p. 75, t. 13, f. 10-11. Brebisson Liste
Desm. (1856), p. 130. Eabh. Alg. Eur. (1868), p. 158.
Jacobsen Desm. Denm. (1874), p. 194 ? in part.
Cosmarium margaritiferum, Kutz. Sp. Alg. (1849), p. 176,
in part.
H ab. In pools.
Lake D istric t; Kent, Sussex, Surrey, Hants, Wales, Warwickshire,
Cornwall, France, Germany, Denmark, Sweden,
Norway, Russian Laplaud, Italy, United States.
Plate X X X V I I I . , jig. 2. o, liviug frond ; h, empty frond; c, side
view.
C o sm a z ium o v a le . Raljs. Ann. Nat. Hist. (1844), xiv., 1 .11, / . 7.
Frond very large, elliptic, nearly twice as long as broad, constriction
very deep, linear ; segments somewhat broader than
long, somewhat triangular, rounded at ends, rough near the
margin with a band of large pearly grannies, producing a
dentate appearance, the disc punctate ; end view elliptic.
S iz e. Length 180 g ; diam. 108 g (D.) ; diam. 100 g
(W o .); length 160 g ; diam. 100 g (C.).
r ;■
D E SMID IB ^. 101
Hassall Fr. W. Alg. (1845), p. 866. Ealfs. Desm. (1848), p.
98, t. 15, f. 9. Archer in Prit. Inf. (1861), p. 733. Delponte
Desm. (1878), t. 10, f. 1-4. Lundell Desm. Sueo. (1871), 53.
Nordstedt Norges Desm. (1873) p. 25. Wood F. Water
Algse U.S. (1872), p. 128. Brebisson Liste Desm. (1856), p.
128. Rabh, Alg. Eur. (1868), p. 158. Kirchner Alg. Schles.
(1878), p. 148. Wolle Desm. U.S. (1884), p. 57, t. 13, f. 8-9.
H ab. In bogs.
Hants, Westmoreland; France, Germany, Norway, Sweden,
Italy, United States.
Plate X X X V I I I . , flg. 3. a, living frond; h, empty frond ; c, Bide
Cosmazium conspez sum. Raljs. Desm. (1 8 4 8 ),p. 101, t. 16, j . 4.
Frond about a third longer than broad, constriction deep
linear ; segments quadrilateral, angles rounded, rough all over
with depressed granules arranged in lines ; end view elliptic.
Size. Diam. 50-73 g (Wo.) ; length 90 g ; diam. 75 g (C.)
Brebisson Liste Desm. (1856), p. 130. Archer in Prit. Inf.
(1861), p. 732. Nordst. Desm. Braz. (1869), p. 208. Cleve
Sver. Desm. (1864), p. 488. Nordst. Desm. Spitz. (1872), p.
27. Lundell Desm. Suec. (1871), p. 26. Nordstedt Norges
Desm. (1 873), p. 12. Grunow Desm. Austr. (1858), p. 501.
Wittrock Scan. Desm. (1869), 13. Notaris Desm. Ital. (1867),
p. 42, t. 3, f. 27. Rabh. Alg. Eur. (1868), p. 159. Wille
Nov. Sem. (1879), p. 35. Wittr. Sottv. Alg. (1872), p. 56.
Wollo Desm. U.S. (1884), p. 75, t. 14, f. 1, 2.
H ab. In pools.
Sussex, Wales, Lake District ; France, Germany, Sweden,
Norway, Austria, Italy, Nova Zembla, Brazil, United States.
Plate X X X IX ., Jig. 1. a, living frond ; h, empty fro n d ; c, end
view.
Cosmazium la tum . Prei. Liste Lesm., p. 128, t. 1, f . 10.
Frond large, about as broad as long, constriction deep, sub-
linear ; segments reniform, rough with rounded pearly granules
arranged in somewhat curved transverse lines.
Siz e . Length 95 g ; diam. 80 g (C.) ; length 80 g ; diam.
68 g (L.) ; diam. 60 g (Wo.).
Archer in Pritch. Infus. (1861), p. 783. Lundell Desm,
Suec. (1871), p. 26. Nordst, Norges Desm. (1873), p. 11.
Petit Desm. Paris (1877), p. 30. Lemaire Desm. Vosg.
(1883), p. 19. Wolle Desm. U.S. (1884), p. 76, t. 13, f. 14.
H a b . In pools.
Lake D istric t; France, Sweden, Norway, United States.
Plate X L I ., fig. 8. a, living frond ; i, empty frond.
•i.i