Lithotrichon Darienko & Pröschold, 2017

Holotype species: Lithotrichon pulchrum Darienko & Pröschold

Original publication and holotype designation: Darienko, T. & Pröschold, T. (2017). Toward a monograph of non-marine Ulvophyceae using an integrative approach (Molecular phylogeny and systematics of terrestrial Ulvophyceae II.). Phytotaxa 324(1): 1-41, 23 figs.

Description: Plants in liquid 1/2 SWES medium up to 0.5 mm consist of prostrate and erected filaments. The system of prostrate filaments is very prominent and is formed from three-dimensional packages. The vegetative cells of the prostrate system are rounded or compressed from the sides, 5.9–8.8 µm in diameter, with a thick cell wall. Vegetative cells usually contain one or two large vacuoles. The erect system formed from short filaments consists of several cells (max. 10 cells). The end cells of plants are cylindrical, sometimes curved, 12.0–23.5 µm long × 3.5–5.5 µm wide and generally 2–4 times longer than broad. Branching is mostly bilateral. Cells are usually uninucleate, but sometimes the longest cells contain two nuclei and two pyrenoids (state before dividing?). Chloroplasts are parietal, usually filling the cell, with a pyrenoid. Zoosporangia are oval and approximately 16.2 ?m in diameter, containing 8 zoospores. Zoospores are ovoid, 7.0–7.5 ?m long × 4.0–4.5 ?m wide with an anterior stigma. Zoospores are released by sudden fracture of the cell wall.

Origin of description: this description is from the original publication; it may have been modified slightly. The most recent alteration to this page was made on 2018-03-14 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 neuter.

Most recent taxonomic treatment adopted: Škaloud, P., Rindi, F., Boedeker, C. & Leliaert, F. (2018). Süßwasserflora von Mitteleuropa. Freshwater flora of central Europe: Chlorophyta V: Ulvophyceae. Vol. 13 pp. [i]-vii, [1]-288, 182 figures. Berlin: Springer Spektrum.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=52322

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 14 March 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 28 March 2024

 
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