. Botany of the Faeröes, based upon Danish investigations. Botany -- Faroe islands. 517 Order BOTRYDIACEAE. CODIOLUM A. Braun. 196. C. gregarium A. Braun. Alg. unicell. genera nova et minus cognita, p. 20, pi. I. A great manv speeics of this genus have been described, and I was at first rather doubtful lo whal species I should refer the Færoese specimens, which I have shown in the accompanying ligure (lig. 106). I hegan by re- ferring them to C. longipes Foslie as they appeared to nie to agree closely with No. 458 in Nordst. & Wittr., Exsicc. But on examining a specimen of Codiohim gregari
. Botany of the Faeröes, based upon Danish investigations. Botany -- Faroe islands. 517 Order BOTRYDIACEAE. CODIOLUM A. Braun. 196. C. gregarium A. Braun. Alg. unicell. genera nova et minus cognita, p. 20, pi. I. A great manv speeics of this genus have been described, and I was at first rather doubtful lo whal species I should refer the Færoese specimens, which I have shown in the accompanying ligure (lig. 106). I hegan by re- ferring them to C. longipes Foslie as they appeared to nie to agree closely with No. 458 in Nordst. & Wittr., Exsicc. But on examining a specimen of Codiohim gregarium from Heligoland, determined by A. Braun and dislrihuted in Ra- benhorst, Algen Europa's, No. 1841 I found that my specimens corres- ponded closely with this spe- cies also. While in Alexander Braun's figure of C. gregarium (1. c), the slem and the clavate head insensibly merge into each other, the specimens in the above- mentioned Exsicc, at any rate the fullv developed examples among them, appeared on closer examina- tion to have the stem and the head separated by quite a distinctly marked constriction, as is also shown in my figure; the stem also proved to be generally longer Hum in Braun's figures. I therefore quite agree with the opinion of Batters1 (1. c), who rcgards (]. longipes as synonymous with C. gregarium. FoslieV2 ligures of Codiolum longipes do not, however, show any decided limit between stem and head, a faet which Kjell man points out in N. I., p. 389 (317), where he writes: — The stipe does not always pass into the club-head so withoul a a limit, as appears in the ligures of Foslie« and he continues: — 1 Batters, E. : Marint' Algæ of Berwick-on-Tweed, p. 2(54. '-' Foslie, M.: Om nogle nye aretiske havalger (Christiania Forhandl. 1881). 33*. Fig. 106. Codiolum gregarium A. Braun. 40 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appeara
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