Nitella opaca (C.Agardh ex Bruzelius) C.Agardh 1824
Current name:
Nitella opaca (C.Agardh ex Bruzelius) C.Agardh
Female plant - 03 August 2011.
Publication Details
Nitella opaca (C.Agardh ex Bruzelius) C.Agardh 1824: 124
Published in: Agardh, C.A. (1824). Systema algarum. pp. [i]-xxxvii, [1]-312. Lundae [Lund]: Literis Berlingianis [Berling].
Request PDFPublication date: probably September 1824
Type Species
This is the type species (lectotype) of the genus Nitella.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Basionym
Chara opaca C.Agardh ex Bruzelius
Type Information
Type locality: "Habitat in aquis quietis, in Scania non rara. Mense Julio fructum fert."; (Bruzelius 1824: 17)
Origin of Species Name
Adjective (Latin), darkened, dull, not shining, opaque (Stearn 1973).
General Environment
This is a freshwater species.
Description
The plants are 5 - 50 cm high and green. The axis is up to 1 mm in diameter. The
branchlets are simple or divided once with one-celled end segments. The species is
dioecious. The gametangia are evenly distributed or in heads. The oogonia are
solitary or geminate, up to 700 m long and 600 m wide. The oospore is dark -
chestnut to black in colour and the antheridium is large, up to 800 m in diameter.
Habitat
Nitella opaca is found in many different habitats; lakes, brooks and it seems
to prefer oligotrophic waters (Lobelia-lakes), but has also been reported from slightly
brackish water. In Norway the species is quite common in high-mountain lakes and
has here been found down to 17 m depth and up to 1250 m altitude.
N. opaca is perennial, and has mature gametangia from May to August and ripe,
black oospores from June to September.
Created: 12 April 2002 by M.D. Guiry.
Last updated: 09 August 2022
Verification of Data
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=35608
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 09 August 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024
