Poulinea Majewska, De Stefano & Van de Vijver, 2015

Holotype species: Poulinea lepidochelicola Majewska, De Stefano & Van de Vijver

Original publication and holotype designation: Majewska, R., Kockiolek, J.P., Thomas, E.W., De Stefano, M., Santoro, M., BolaƱos, F. & Van der Vijver, B. (2015). Chelonicola and Poulinea, two new gomphonemoid diatom genera (Bacillariophyta) living on marine turtles from Costa Rica. Phytotaxa 233(3): 236-250, 32 figs.

Description: Frustules wedge-shaped to rectangular in girdle view. One valve typically concave while other straight. Girdle composed of a large number (>10) of open, perforated bands of different width with occasionally two irregular rows of poroids. Valvocopula bearing a septum at the headpole and the second copula with a septum at the footpole. Valves heteropolar with a broadly rounded headpole and a more acutely rounded footpole. Pseudosepta absent. Apical pore field absent but several more closely-spaced areolae surrounding the distal raphe endings. Raphe straight to very weakly curving. Raphe branch in the headpole shorter than in the footpole. Proximal raphe endings straight to weakly unilaterally deflected. External distal raphe fissures elongated, deflected, located in a shallow groove, covered by a large silica flap extending from both valve apices. Internal proximal raphe endings covered by a silica flap and distal raphe endings straight, terminating on weakly developed helictoglossae. Striae uniseriate, composed of two elongated areolae, clearly separated by the valve face/mantle junction. Areolae occluded in the areolar canal by hymenes.

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 2020-02-26 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.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=51901

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 26 February 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 28 March 2024

 
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