Hummia J.Fiore, 1975

Holotype species: Hummia onusta (Kützing) J.Fiore

Original publication and holotype designation: Fiore, J. (1975). A new generic name for Farlowiella onusta (Phaeophyta). Taxon 24: 497-498, no figs.

Precise date of publication: 16 Sep 1975

Description: Sporophyte filiform, simple or sparingly branched, to 12 cm tall, attached by a discoid rhizoidal base. Uniseriate when young becoming prenchymatous with a medulla of 4 large cells and a cortex of 1-2 layers of smaller cells. Trichothallic meristem at apex, often bearing one or more terminal true hairs; scattered hairs also arising from cortex. Chloroplasts discoid, with a pyrenoid. Reproduction by unilocular and plurilocular zoidangia which protrude from the cortex. Unispores developing as uniseriate gametophytes up to 3 mm tall with a discoid holdfast and alternate or opposite branches with terminal and lateral hairs. Sexual reproduction by dimorphic, large- or small- chambered plurilocular gametangia borne on separate plants, releasing gametes that fuse and develop as sporophytes.

Information contributed by: E. C. Henry. The most recent alteration to this page was made on 2021-11-05 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: Marine, epiphytic on sea grasses (Halodule, Ruppia, Zostera) from Mexico to Quebec.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=38285

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 05 November 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 16 April 2024