DBSMIDIE.E. 125
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Ca lo cy lin d zu s co n n a tu s . Kirchn. Alg. Schles. (1878), jp. 142.
Frond large, in front view about one half longer than broad,
constriction shallow ; segments about two-thirds of a circle,
coarsely punctate, and with a distinct, sometimes striated,
border; end view circular.
Siz e . Length 72 g ; diam. 43 g (D.) ; length 70-102 g ;
diam. 45-75 g (K.) ; diam. 45-75 g (Wo.).
Schaarschm. Magy. Desm. (1883), p. 271. Wolle Desm.
U .S . (1884), p. 55, t. l l , f . 8, 9.
Dysphinctium Meneghinianum, Nag. Einz. Alg. (1849), t. 6 G,
f. 2.
Cosmarium connaturn, Breb. in Ralfs. Desm. (1848), p. 108,
t. 17, f. 10. A rch e rin Prit. Inf. (1861), p. 735. Delponte
p. Desm. (1878), t. 9, f. 23-25. Cleve Sver. Desm. (1864),
488. Lundell Desm. Sueo. (1871), p. 45. Nordstedt Norges
Desm. (1873), p. 22. Grunow Desm. Austr. (1858), p. 501.
Wood F. Water Algai U.S. (1871), p. 154. Brebisson Liste
Desm. (1856), p. 132. Wille Norges Fers. (1880), p. 38.
Lemaire Desm. Vosg. (1883), p. 21. Wittrook Scan. Desm.
(1869), p. 14. Notaris Desm. Ital. (1867), p. 39, t. 3, f. 20.
Rabh. Alg. Eur. (1868), p. 175. Jacobsen Desm. Den.
(1874), p. 201.
Cosmarium connaturn a typicum, Klebs. Desm. Pruss. (1879),
p. 29.
H ab. In pools, &c.
Westmoreland, Wales ; France, Germany, Sweden, Norway,
Austria, Hungary, Italy, United States.
Flate X L IV . ,fig. 2. a, living frond ; 5, empty frond ; c, end view.
Calo cy lin d zu s p seu d o -c o n n a tu s . Nordst.
Medium size, oval, somewhat fiddle-shaped, slightly sinuately
constricted at the middle, broadly rounded at each pole, circumference
quite entire ; end view orbicular, semi-cells sub-hemispherical
; membrane delicately punctate, colourless or slightly
brownish.
Siz e . Length 43 g ; diam. 28 g ; isthmus 25 g (N.) ; length
55 g ; diam. 44 g (L.).
Wolle Desm. U.S. (1884), p. 55, t. 12, f. 11 ; t. 49, f. 10,11.
Cosmarium pseudo-connatum, Nordstedt Desm. Braz. (1869),
p. 214, t. 3, f. 17. Nordstedt Norges Desm. (1873), p. 24.
Lundell Desm. Suec. (1871), p. 45. Archer in Journ. Bot.
(1874), iii., p. 93.
Cosmarium connaturn h. pseudo-connatum, Klebs. Desm. Prnss.
(1879), p. 29.
H a b . In marshy pools.
Ireland, Lake District; Sweden, Norway, Brazil, United States.
Plate X L IV ., fig. 3. a, living frond; h, empty frond; c, end
view.
C a lo c y lin d z u s c u c u z b i t a . DeBary Conj. (1858), g . 72.
Frond in front view about twice as long as broad; constriction
a shallow groove; segments siib-oylindrioal, or somewhat
oval, with rounded ends; end view circular ; empty frond punctate,
with scattered puncta.
S iz e . Diam. 22-25 g (K.) ; diam. 22-25 g (Wo .); length
30-34 p t; diam. 18-181 g (L.).
Schaarschm. Magy. Desm. (1883), p. 271. Kirchn. Alg.
Schles. (1878), p. 143. Wolle Desm. U.S. (1884), p. 54, t.
12, f. 15, 16.
Penium clandestinum, Kutz.
Cosmarium cucurbita, Breb. in Desm. Alg. No. 1103 (1840).
Ralfs. Ann. Nat. Hist. (1844), xiv., p. 395, t. 11, f. 10.
Ealfs. Desm. (1848), p. 108, t. 17," f. 7. Archer in Prit.
Inf. (1861), p. 735. Cleve Sver. Desm. (1864), p. 488. Lundell
Desm. Suec. (1871), p. 51. Nordstedt Norges Desm.
(1873), p. 24. Grunow Desm. Austr. (1858), p. 500. W ittrook
Scan. Desm. (1869), p. 14. Brebisson Liste Desm. (1856),
p. 132. Rabh. Alg. Eur. (1868), p. 174. Lemaire Desm.
Vosg. (1883), p. 22. Jacobsen Desm. Denm. (1874), p. 201.
Cosmarium cucurbita a. typicum, Klebs. Desm. Pruss. (1879),
p. 28.
H a b . In ponds, &c.
Sussex, Hants, Gloucester, Cheshire, Westmoreland, Cornwall,
Wales, Ireland; France, Germany, Sweden, Norway,
Austria, Hungary, United States.
Plate X L IV ., fig 7. a, living frond ; I c, empty fronds; e, end view.
C a lo c y lin d z u s p a l a n g u la . De Bary Conj. (185S),p. 72.
Frond in front view about two and a half times as long as
broad, constriction a shallow groove, segments cylindrical, ends
obtuse ; end view circular, empty frond minutely punctate, the
puncta arranged in transverse lines.
S iz e . Diam. 12-15 g (K,).
Schaarschm. Magy. Desm. (1883), 271. Kirchn. Alg.
Schles. (1878), p. 143.
Cosmarium palangula, Breb. Liste Desm. (1856), p. 132.
Archer in Prit. Infus. (1861), p. 784. Lundell Desm. Suec.
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