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XV.—Studies in the Ectocarpaceæ. II. The Life-history and Cytology of Ectocarpus siliculosus, Dillw

Published online by Cambridge University Press:  06 July 2012

Extract

Ectocarpus siliculosus was named by Dillwyn (5) in 1809 and described by him in the British Confervœ of that date. It was included by Harvey (9) in the Phycologia Britannica under the same name, but according to Hauck (10) in the Meeresalgen Deutschlands und Oesterreichs the specific name should be attributed to Kützing (21), though Hauck himself, following Kjellman (12), is of the opinion that the plant should be regarded as a variety of E. confervoides (Roth) Le Jol. If this view be correct, the plant should be E. confervoides (Roth) Le Jol var. siliculosus (Dillwyn); but in a paper entitled “Beiträge zur Kenntnis einiger Ectocarpus-Arten der Kieler Föhrde” Kuckuck (15) discusses the validity of the species siliculosus. He emphasises certain important features, notably the size and shape of plurilocular sporangia and the frequent presence of a vegetative filament as a prolongation of the sporangium, and considers them to be characteristics clearly distinguishing this plant from E. confervoides (Roth), from which such features are lacking. Batters (1) evidently agrees with Kuckuck in the integrity of the species, but attributes the naming of it to Kützing. The plant therefore appears in the Catalogue of the British Marine Algœ as E. siliculosus Kütz.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1930

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References

1. Batters, E. A. L., 1902. “A Catalogue of the British Marine Algæ,” Supp. to the Journ. of Bot.Google Scholar
2. Berthold, G., 1881. “Die geschlechtliche Fortpflanzung der eigentlichen Phæosporen,” Mitt. a. d. Zool. Stat. z. Neapel, ii.Google Scholar
3. Berthold, G., 1897. “Bemerkungen zu der Abhandlung von Fr. Oltmanns ‘Uber Scheinkopulation bei Ectocarpeen und anderen Algen,’Flora, lxxxiii.Google Scholar
4. Church, A. H., 19241926. “Reproductive Mechanism,” Journ. of Bot.Google Scholar
5. Dillwyn, , 1809. British Confervæ.Google Scholar
6. Goebel, R., 1878. “Zur Kenntnis einiger Meeresalgen,” Bol. Ztg.Google Scholar
7. Hartman, M.Über ‘Relative Sexualität’ bei Ectocarpus siliculosus,” Die Naturwissenschaften, xiii.Google Scholar
8. Hartman, M. 1925. “Untersuchungen Über ‘Relative Sexualität’ I, Versuche an Ectocarpus siliculosus,” Biol. Zentralb., Bd. xlv.Google Scholar
9. Harvey, , 1871. Phycologia Britannica.Google Scholar
10. Hauck, F., 1885. Die Meeresalgen Deutschlands und Oesterreichs.Google Scholar
11. Janczkwski, E. De, 1875. “Obs. sur l'accroissement du Thalle des Phéosporées,” Mém. de la Soc. des Sci. Nat. de Cherbourg, xix.Google Scholar
12. Kjellman, F. R.Norra Ishafvets Algflora.Google Scholar
13. Kjellman, F. R. 1872. Bidrag till kännedomen om, Skandinaviens Ectocarpeer och Tilopterider.Google Scholar
14. Kniep, H., 1928. Die Sexualität der niederen Pflanzen, Jena.Google Scholar
15. Kuckuck, P., 1891. Beiträge z. Kenntnis einiger Ectocarpus-Arten der Kieler Föhrde.CrossRefGoogle Scholar
16. Kuckuck, P., 18941897. “Bemerkungen Z. marinen Algenvegetation von Helgoland,” I und II, Wiss. Meeresunters. Abt., Helgoland, N.F., i. und ii.Google Scholar
17. Kuckuck, P., 1899. “Beiträge z. Kenntnis Meeresalgen,” I und II, Wins. Meeresunters. Abt., Helgoland, N.F., ii und iii.Google Scholar
18. Kuckuck, P., 1892. “Ectocarpus siliculosus Dillwyn. f. varians. Ein Beispiel. f. ausserordentl. Schwankungen der plurilok. Sporangienform,” Ber. d. deut. bot. Ges., x.Google Scholar
19. Kuckuck, P., 1898. “Über die Paarung der Schwarmsporen bei Seytosiphon,” Ber. d. deut. bot. Ges., xvi.Google Scholar
20. Kuckuck, P., 1912. “Beiträge z. Kenntnis Meeresalgen,” Wiss. Meeresunters. Abt., Helgoland, N.K v.Google Scholar
21. Kützing, T. F., 1843. Phycologia Generalis.Google Scholar
22. Kylin, H., 1918. “Studien über die Entwicklungsgeschiehte der Phæophyceen,” Sv. Bot. Tidsk., xii.Google Scholar
23. Kuckuck, P., 1918. “Über die Fucosanblasen der Phæophyceen,” Ber. d. d. bot. Ges., xxxvi.Google Scholar
24. Oltmanns, Fr., 1899. “Über die Sexualität der Ectocarpen,” Flora, lxxxv.Google Scholar
25. Kuckuck, P., 1922. Morphologie und Biologie der Algen.Google Scholar
26. Pringsheim, N., 1861. “Beiträge z. Morphologie der Meeresalgen,” Abhandl. der Königl. Akademie der Wissen. z. Berlin.CrossRefGoogle Scholar
27. Reinke, J., 1888. Atlas deutscher Meeresalgen, Hefte I und II.CrossRefGoogle Scholar
28. Sauvageau, C., 1896. “Remarques sur la Réproduction des Phéosporées et en particulier des Ectocarpus,” Ann. des. Sci. Nat., t. ii.Google Scholar
29. Sauvageau, C., 1896. “Observations relatives à la Sexualité des Phéosporées,” Journ. de Bot., x.Google Scholar
30. Sauvageau, C., 1896. “La Copulation isogamique de L'Ectocarpus siliculosus, est-elle apparente ou réele?Mém. de la Soc. Nat. des. Sci. Nat., el Math. de Cherbourg, xxx.Google Scholar
31. Schmitz, Fr., 1882. Die Chroniatophoren der Algen.Google Scholar
32. Schmitz, Fr., 1884. “Beiträge zur Kenntnis der Chromatophoren,” Prings. Jahrb., xv.Google Scholar
33. Senn, G.Weitere Untersuchungen über Gestalts und Lageveranderung der Chromatophoren,” IV and V, Zeitschrift f. Botanik, xi.Google Scholar
34. Svedelius, N., 1928. “On the Number of Chromosomes in the Two Different Kinds of Plurilocular Sporangia of Ectocarpus virescens,” Sv. Bot. Tidsk., xxii.Google Scholar
35. Svedelius, N., 1927. “Alternation of Generations in Relation to Reduction Division,” Bot. Gaz., lxxxiii.Google Scholar
36. Thuret, G., 1850. “Rech. sur les Zoospores des Algues, etc.,” Ann. de Sci. Nat. de Bot., xiv.Google Scholar