Nothocladus Skuja, 1934
Lectotype species: Nothocladus nodosus Skuja
Original publication: Skuja, H. (1935). Untersuchungen über die Rhodophyceen des Süßwassers. IV. Zwei neue Chantransia-Arten. V. Nothocladus, eine neue Gattung der Batrachospermaceen. VI. Nemalionopsis Shawi, eine neue Gattung und Art der Helminthocladiaceen. Beihefte zum Botanische Centralblatt 52B: 173-192, 4 figs.
Request PDFType designated in: Kylin, H. (1956). Die Gattungen der Rhodophyceen. pp. i-xv, 1-673, 458 figs. Lund: C.W.K. Gleerups.
Description: thalli monoecious or dioecious; reddish-brown, olive-drab, sometimes grass-green; consistency mucilaginous or cartilaginous, branching irregular; whorls well developed, sometimes highly reduced; main axis covered by cylindrical cells and infrequently by bulbous cells; primary fascicles with ellipsoidal, cylindrical, or obovoidal, sometimes spherical cells; secondary fascicles few and sparse or abundant and covering the entire internode; spermatangia at the tips of primary and secondary fascicles, spherical to sub-spherical; carpogonial branches composed of barrel- or disc-shaped cells or cells of similar shape to the fascicles, few to many celled, straight or sometimes curled, spiralled and twisted, developing from the periaxial cell of primary fascicles; involucral filaments, short or long; carpogonia with sessile, rarely stalked, clavate, lanceolate, cylindrical, fusiform or ellipsoidal trichogynes; carposporophytes of three types: pedunculate, spherical, small; axial, spherical and hemispherical, large; creeping and diffuse; likewise, gonimoblast filaments densely or loosely arranged with determinate or indeterminate filaments; carposporangia spherical, obovoidal, ellipsoidal, or rarely elongate-obovoidal or clavate, small or large.
Information contributed by: Vis & Necchi (2021: 236).. The most recent alteration to this page was made on 2022-04-19 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=42772
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 19 April 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 23 November 2024
