Occurrence of asparagopsis armata harv. On the scilly isles

ABSTRACT THE red alga, _Asparagopsis armata_ Harv., was originally found in Australia, where it is very abundant along the south coast; it occurs also in New Zealand and Tasmania1. It was

first recorded in the northern hemisphere in 1925 by Sauvageau2. Its naturalization along the European and North African coasts has been followed and described by J. Feldmann and G.

Feldmann3 and shown to be coincident with that of _Falkenbergia rufolanosa_ Harv., the tetrasporic generation of A. armata. No occurrences were recorded north of the coast of Brittany. Since

that account, however, _Asparagopsis_ has been found at two stations on the coast of Co. Galway, west Ireland, by de Valera4 in July and October 1941; it has also been found in Cornwall by

Drew5 on the Lizard Peninsula, where it was well established in August 1950, and she has found specimens of _Falkenbergia_ cast ashore on the Lizard and at Falmouth, in August 1950. It is

not without interest, therefore, to note the presence of _Asparagopsis armata_ on the Scilly Isles. Several plants were found growing tangled among _Chondrus crispus_ (L.) Stackh. and

_Laurencia pinnatifida_ (Gmel.) Lamour, on a boulder which projected from the sandy shore at the south end of Pentle Bay, Tresco, at extreme low water, spring tide, on March 24, 1951. The

specimens have the characteristic reflexed barbs on otherwise bare branches; the fronds are up to four inches long, and these specimens show neither cystocarps nor spermatangial branches. I

am grateful to Dr. Mary W. Parke for her kindness in identifying the specimens and for the loan of literature. Access through your institution Buy or subscribe This is a preview of

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WITHIN LICHENICOLOUS LICHENS AND CRUSTOSE HOSTS ON IBERIAN PENINSULA GYPSUM BIOCRUSTS Article Open access 20 August 2020 SEVERE DECLINE OF _GONGOLARIA BARBATA_ (FUCALES) ALONG MOST OF THE

FRENCH MEDITERRANEAN COAST Article Open access 17 February 2025 A LARGE NON-PARASITIC POPULATION OF _SAVALIA SAVAGLIA_ (BERTOLONI, 1819) IN THE BOKA KOTORSKA BAY (MONTENEGRO) Article Open

access 02 April 2024 REFERENCES * Harvey, W. H., “_Phycologica Australica_” (London, 1858–63). Google Scholar  * Sauvageau, C., _C.R. Acad. Sci._, _Paris_, 180 (1925). * Feldmann, J., and

Feldmann, G., _Ann. Sci. Nat. Bot._, 11, 3, 75 (1942). Google Scholar  * de Valera, M., _Irish Nat. J._, 8, 30 (1942). Google Scholar  * Drew, K. M., _Nature_, 166, 873 (1950). Article  ADS

  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * St. John's College, Cambridge G. A. HORRIDGE Authors * G. A. HORRIDGE View author publications You

can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE HORRIDGE, G. Occurrence of _Asparagopsis armata_

Harv. on the Scilly Isles. _Nature_ 167, 732–733 (1951). https://doi.org/10.1038/167732c0 Download citation * Issue Date: 05 May 1951 * DOI: https://doi.org/10.1038/167732c0 SHARE THIS

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