Haplogloia Levring, 1939

Holotype species: Haplogloia andersonii (Farlow) Levring

Original publication and holotype designation: Levring, T. (1939). Über die Phaeophyceengattungen Myriogloia Kuck. und Haplogloia nov. gen. Botaniska Notiser 1939: 40-52, 5 figs.

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Description: Thallus erect, epilithic, to 30 cm high, filiform, irregularly branched, attached to substratum with a small disc. Axis with a leading monopodially branched filament terminated by a long assimilatory filament. Downward growing hyphae present within medulla. Meristematic region of the central filament intercalary, above and among the youngest ramifications. Cortical layer formed by short and long assimilatory filaments. Short assimilatory filaments 40-60 µm long, arching, long assimilatory filaments straight, to 1000 µm long. Both kinds of assimilatory filaments occur mixed, but depending on locality and age of the alga, the long assimilatory filaments may be lost almost completely. Hyaline hairs absent. Plurilocular sporangia described only once, uniseriate and transformed from short assimilatory filaments. Unilocular sporangia pyriform to globular, to 30 µm in length, located within cortex. Life history alternation of heteromorphic generations. Erect thalli are sporophytes. Spores from unilocular sporangia develop into microscopic, discoid, dioecious gametophytes. Isogametes are formed by direct transformation of gametophyte cells or in few-celled erect plurilocular gametangia.

Information contributed by: A. F. Peters. The most recent alteration to this page was made on 2014-06-20 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Silberfeld, T., Rousseau, F. & Reviers, B. de (2014). An updated classification of brown algae (Ochrophyta, Phaeophyceae). Cryptogamie Algologie 35(2): 117-156, 1 fig., 1 table.

Comments: Distributed in the NW, NE and SE Pacific Ocean.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=42346

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 20 June 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 November 2024