Montagnia Necchi, M.L.Vis & A.S.Garcia, 2019

Holotype species: Montagnia macrospora (Montagne) Necchi, M.L.Vis & A.S.Garcia

Original publication and holotype designation: Necchi, O., Jr, Garcia Fo, A.S., Paiano, M.O. & Vis, M.L. (2019). Revision of Batrachospermum section Macrospora (Batrachospermales, Rhodophyta) with the establishment of the new genus Montagnia. Phycologia 58(6): 582-591.

Description: Thalli monoecious, dioecious, or polyecious; bluish or greenish-blue, consistency mucilaginous; branching irregular; whorls well developed, contiguous or separated, barrel-shaped, obconical or pear-shaped or spherical; cortication of the main thallus axis well developed with filaments of cylindrical cells; primary fascicles straight, formed by cylindrical, ellipsoidal, obovoidal, or spherical cells; secondary fascicles abundant and covering half to the entire internode; monosporangia obovoidal or pear-shaped, terminal on primary or secondary fascicles; spermatangia spherical or obovoidal, terminal or sub-terminal on primary or secondary fascicles; carpogonial branches well differentiated from the fascicles, straight, long, developing from the periaxial or proximal cells of primary fascicles, on carpogonial branches rarely from cortical filaments, composed of short-cylindrical or barrel-shaped cells; involucral filaments composed of 3–10 ellipsoidal or fusiform proximal cells and usually 1–2 sub-spherical or ellipsoidal upper distal cells forming a rosette around the carpogonia; carpogonia sessile or stalked with clavate or pear-shaped trichogynes; fertilized carpogonia and subtending cells of carpogonial branches with enlarged pit connections (>3 ?m wide); carposporophytes pedunculate, spherical or sub-spherical, contained within the whorls, small; gonimoblast filaments densely arranged, composed of 1–5 cylindrical or barrel-shaped cells; carposporangia large, obovoidal, or pear-shaped.

Information contributed by: Vis & Necchi (2021: 145). The most recent alteration to this page was made on 2022-04-13 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: Vis, M.L. & Necchi, O., Jr. (2021). Subphylum Eurhodophytina, Class Florideophyceae, Subclass Nemaliophycidae, Order Batrachospermales. In: Freshwater red algae Phylogeny, taxonomy and biogeography. ( Eds), pp. 129-332. Cham: Springer [Springer Nature Switzerland AG].

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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=52744

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 13 April 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 29 March 2024

 
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