. Botany of the Faeröes, based upon Danish investigations. Botany -- Faroe islands. 389 Thorshavn specimen is a distinct formå decurrens. And further examination likewise proves his Ceramium diaphanum d vireseens (1. c. p. 120) to be small examples of C. rubrum bearing ripe tetraspores. Kither on account of these, or more probably on account of the plant having heen partly dried and killed by a longer intervening period of Iow-water (it having presumably grown between tide-marks) it has a greenish tinge, which induced Lyngbye to name il vireseens. There is. moreover, a small specimen in his he
. Botany of the Faeröes, based upon Danish investigations. Botany -- Faroe islands. 389 Thorshavn specimen is a distinct formå decurrens. And further examination likewise proves his Ceramium diaphanum d vireseens (1. c. p. 120) to be small examples of C. rubrum bearing ripe tetraspores. Kither on account of these, or more probably on account of the plant having heen partly dried and killed by a longer intervening period of Iow-water (it having presumably grown between tide-marks) it has a greenish tinge, which induced Lyngbye to name il vireseens. There is. moreover, a small specimen in his herbarium which he himself determined as C. rubrum. Lyngbye's Herbarium contains several typical examples of subforma secundata, among these the original of his figure; one of the examples, which somewhat resembles rny specimens of , Lyngbye has labelled: - forsan Cer. rnbri var. RHODOCHORTON Någeli. 61. Rh. membranaceum Magnus. Rosenv., Grønl. Havalg., p. 794; Kuckuck, Beitråge zur Kenntnis der Meersalgen, 2. Uber Rhodo- chorton membranaceum Magnus, eine ehitinbewohnende Alge. This species grows in diflerent Brgozoa and Sertularia in the tubes of which the endozoic filaments spread themselves. The free erect filaments are 6—8 p thick. It has been found in the littoral zone as well as in the sublittoral down to depths of above 20 fathoms, and occurs both in exposed and sheltered localities. Tetrasporic specimens wére found in May, June and November. It is doubtless commonly distributed along the coasts of the Fær- oes: — Bor do: Haraldsund (); Str.: Kalbakfjord (!), Thorshavn (), Gliversnæs (!); Syd.: Trangisvaag (H. J.). 62. Rh. penicilliforme (Kjellm.) K. Rosenv., Algues mar. du Groenl., p. 66, (Annales d. sci. nat. VI s., ); Rhodochorlon mesocarpum (Carm.) Kjellm. var.(?) penicilliforme Kjellm. Rosenv., Grønl. Havalg., p. 792. This alga, which is fully de- scribed by Rosen vinge, 1. c, is especially characterized by its elegant basal disc
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