180 
were also met with in July. The antheridia have only been met with in particular 
male specimens from the North Sea and the Limfjord, collected in August, and a 
cystocarp-bearing specimen from Lillebelt collected in July also appeared to bear 
emptied antheridia. The cystocarps develop, as it seems, at about the same seasons 
as the tetrasporangia. They have been found ripe in January, May and June, 
emptied or degenerated in August. The carpogonia seem to arise at various sea- 
sons. In specimens collected in November I have found very young carpogonia 
still without trichogynes, but in crusts collected at Bornholm in July carpogonia 
with long trichogynes, partly also with sporogenous filaments, were met with (fig. 98), 
and unfertilized and fertilized carpogonia (at all events producing sporogenous fila- 
ments) have also been found in spring. In some cases sporangia and cystocarps 
have been found in the same crust. 
Localities. Ns: Klitmøller, on the stem of Laminaria hyperborea washed ashore; Hanstholm 
(YU), 2 meters. — Sk: 4 miles N"/4E of Svinkløv beacon (A.C. Johansen); Løkken, on Lam. hyp. on the shore; off 
Lønstrup, about 9 m; off Hirshals, on Lam. hyp. — Lf: Nissum Bredning off Helligse, 6 m (C. H. Ostenfeld); 
at Mullerne (ZY), 4,5 m; Sondre Ron near Lemvig; Holmtunge Tange (MK). — Kn: Krageskov Rev (TV). 
— Ke: JO, Fladen; OO, Seborghoved Grund, 8,5 m. — Km: XC, NW of Anholt. — Ks: OS, OS!, Hastens 
Grund, 14—16m; HQ, Lysegrund; EJ, entrance to Isefjord. — Sa: GD, near Sejerø; FS, Vejre Sund; 
Ronnen in Begtrup Vig, 1 m; North side of Refsnes Reef, 13 m, (Ostenfeld); DK, Bolsaxen; MQ, South 
of Paludans Flak, 12 m; Halsgab near Hofmansgave, “in saxis maris Hindsholm“ (Lyngbye, Hofman Bang); 
DJ, east of Æbelø. — Lb: FZ, Kasserodde, 6,5 m; North of Fano Kalv; off Middelfart, about 15 m. — 
Sb: Stavreshoved; GP, Halskov Reef; NN, SW of Sproge, 19m; Avernakhage near Nyborg, 2m; GZ, 
north of Egholm; DN, Vengeance Grund; near Vresen (Ostenfeld); DP, north of Onsevig. — Su: BQ, off 
Ellekilde, Ellekilde Hage, 11m; North of Lappegrund, about 20 m (H. E. Petersen). -- Bw: DU, off 
Dimesodde, 11m. — Bm: QQ, off Rødvig. — Bb: YG, Arnager Rev, 7 m. 
Cruoria (Fries). 
1. Cruoria pellita (Lyngb.) Fries, Areschoug. 
El. Fries, Corpus florar. prov. Suec. I. 1835, p. 317; J. E. Areschoug, Algarum pug. sec. Linnæa, Vol. 17, 
p. 267, tab. IX fig, 6—8, 1843, ex parte, Phyceæ scand. mar., 1850, p. 157; Alg. scand. exsice, 
No. 309 (1872); J. Agardh, Sp. II, 1852, p. 491, III, 1876, p. 377; Le Jolis, Liste alg. Cherbourg p. 108, 
pl. IV, fig. 1—3; Batters, Mar. Alg. Berw. 1889, p. 95, pl. XI fig. 5. 
Chetophora pellita Lyngbye Hydr., 1819, p. 193, pl. 66 B, ex parte (quoad specim. feeroéns.). 
Cruoria adherens Crouan in J. Agardh Sp. II, p. 491, III, p. 377, (comp. Le Jolis, Liste, p. 108). 
An examination of the specimens of Chetophora pellita in LyNGBYE's herbarium 
has shown that this name includes two distinct species, the specimens from the 
Ferges belonging to Cruoria pellita, while those from Denmark belong to Petrocelis 
‚Hennedyi (comp. p. 174). The description and the figures, which treat only of 
sterile specimens, agree tolerably well with both species; it appears most pro- 
bable, however, that they have been worked out after the Danish specimens, as the 
filaments in the fig. 2 are not thicker towards the base, and as they are described 
as “æqualia, apice parum attenuata” (I. c. p. 194), which agrees best with the last 
