Hincksia J.E.Gray, 1864

Holotype species: Hincksia ramulosa J.E.Gray

Currently accepted name for the type species: Hincksia hincksiae (Harvey) P.C.Silva

Original publication and holotype designation: Gray, J.E. (1864). Handbook of British water-weeds or algae. The Diatomaceae by W. Carruthers. pp. i-iv, 1-123. London: R. Hardwicke, Picadilly.

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Description: The erect thallus of this cosmopolitan genus consists of uniseriate, branched filaments. Growth is diffuse intercalary. The chloroplasts are parietal, disc-shaped, numerous in each cell and each chloroplast has one pyrenoid. True phaeophycean hairs unknown. The branching pattern within the genus varies. It may be secund, but also species with scattered or opposite branches occur. Also the position of the often sessile plurilocular sporangia varies. In some species they are formed by transformation of short laterals coming from the adaxial side of the supporting lateral giving this a serrate appearance, but they also occur on the main axis. Unilocular sporangia seldom occur and they have the same position on the filaments as the plurilocular sporangia. The life history of H. ovata (Kjellm.) P. C. Silva is of the direct type (Kornmann 1954, as Giffordia fuscata, Pedersen 1979, as G. ovata). The unilocular sporangia observed in Kornmann's studies are probably apomeiotic.

Information contributed by: P. M. Pedersen. 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.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=32856

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 21 November 2024