Leveillea Decaisne, 1839

Lectotype species: Leveillea schimperi Decaisne

Currently accepted name for the type species: Leveillea jungermannioides (Hering & G.Martens) Harvey

Original publication and holotype designation: Decaisne, J. (1839). Note sur le genre Amansia. Annales des Sciences Naturelles, Botanique, Seconde série 11: 373-376.

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Description: Thallus prostrate to predominantly erect, dorsiventral, with circinate apices; primary axes cylindrical, attached at intervals by clusters of rhizoids; lateral branches leaf-like, determinate, exogenous, forming along axis in 2 dorso-lateral series, alternating regularly from side to side. Structure with axes initially with 4 pericentral cells, the dorsal and ventral remaining undivided, the lateral pair forming monostromatic wings terminated by a few conspicuous trichoblasts, or with naked apices; mature axes with 7–10 pericentral cells, the ventral pericentral cells producing keel-like outgrowths by periclinal divisions. Spermatangial branches forming on determinate laterals. Cystocarps exogenously forming on basal or suprabasal segments of determinate branches; pericarp 2-layered. Tetrasporangia forming in curved stichidia-like branches that replace indeterminate branches, a single sporangium developing dorsally in each segment [after Abbott (1999)].

Information contributed by: Huisman (2018). The most recent alteration to this page was made on 2018-10-09 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.

Comments: Often a common epiphyte in tropical marine floras throughout the world.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=41853

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 09 October 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 November 2024