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 seemis, 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, hi some cases sporangia and cystocarps 

 have been found in the same crust. 



Localities. Ns : Klitmaller, on the stem of Laminaria hj'perborea washed ashore; Hanstholm 

 (YU), 2 meters. — Sk : 4 miles N'l4liof Svinklov beacon (A. Clohansen) ; Lakken, on Lam. hyp. on the shore; off 

 Lonstrup, about 9 m; off Hirshals, on Lam. hyp. — Lf : Nissiim Hredning off Helligso, 6 m (C. H. Ostenfeld) ; 

 at Mullerne (ZY), 4,5 m; Sondre Ron near Lemvig; Holmtunge Tange (MK). — Ku: Krageskov Rev (TV). 

 - Ke: JO, Fladen; 00, Seborghoved Grund, 8,5 m. — Km: XC, NW of Anholt. — Ks: OS, OS', Hastens 

 Grund, 14—16 m; HQ, Lysegrund; EJ, entrance to Isefjord. — Sa : GD, near Sejere; FS, Vejra Sund; 

 Ronnen in Begtrup Vig, 1 m; North side of Refsntes Reef, 13 m, (Ostenfeld); DK, Bolsaxen; MQ, South 

 of Paludans Flak, 12 m; Halsgab near Hofmansgave, "in saxis maris Hindsholm" (Lj'ngbye, Hofman Bang); 

 DJ, east of vEbelo. — Lb: FZ, Kasserodde, 6,5 m; North of Feeiw Kalv; off Middelfart, about 15 m. — 

 Sb: Stavreshoved ; GP, Halskov Reef; NN, SW of Sproge, 19 m; Avernakhage near Nyborg, 2 m; GZ, 

 north of Kgholm; DN, Vengeance Grund; near Vresen (Ostenfeld); DP, north of Onsevig. — Sii : BQ, off 

 Ellekilde, Ellekilde Hage, 11 m; North of Lappegrund, about 20 m (H. E. Petersen). — Bw : DU, off 

 Dimesodde, 11m. — Bin: QQ, off Redvig. — Bb: YG, Arnager Rev, 7 m. 



Cruoria (Fries). 

 1. Cruoria pellita (Lyngb.) Fries, Areschoug. 



El. Fries, Corpus llorar. prov. Suee. I. 1835, p. 317; J. E. Areschoug, Algarum pug. sec. Linna;a, Vol. 17, 

 p. 267, tab. IX fig, 6—8, 1843, ex parte, Phycea; scand. mar., 1850, p. 157; Alg. scand. exsicc, 

 No. 309 (1872); J. Agardh, Sp. H, 1852, p. 491, IH, 1876, p. 377; Le Jolis, Liste alg. Cherbourg p. 108, 

 pi. IV, fig. 1—3; Batters, Mar. Alg. Berw. 1889, p. 95, pi. XI fig. 5. 



Chcvtophora pellita Lj'ngbye Hj'dr., 1819, p. 193, pi. 66 B, ex parte (quoad specim. fseroens.). 



Cruoria adhwrens Crouan in J. Agardh Sp. II, p. 491, HI, p. 377, (comp. Le Jolis, Liste, p. 108). 



An examination of the specimens of Cha'toplwra pellita in Lyngbye's herbarium 

 has shown that this name includes two distinct species, the specimens from the 

 Fieroes 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 "sequalia, apice parum attenuata" (I. c. p. 194), which agrees best with the last 



