“Zygnema”的意思、由来-开放百科全书

词条

Zygnema

释义

Species
References

{{taxobox
| image = 20100417_005205_Zygnema.jpg
| image_caption = Zygnema, showing characteristic dual star-shaped chloroplasts.
Numbered ticks are 20 µm apart.
| image2 = 20110331_012556_Algae.jpg
| image2_caption = Numbered ticks are 122 µm apart.
| regnum = Plantae
| divisio = Charophyta
| classis = Zygnematophyceae
| ordo = Zygnematales
| familia = Zygnemataceae
| genus = Zygnema
| genus_authority = C. Agardh, 1817
| synonyms =

Globulina Link in Nees 1820^[1]
Lucernaria Roussel, 1806^[2]^[1]
Pleurodiscus Lagerheim, 1895^[3]^[1]
Rhynchonema Kützing, 1849^[1]
Stellulina Link, 1833^[1]
Thwaitesia Montagne, 1845^[1]
Tyndaridea Bory de Saint-Vincent 1822^[1]
‘Tendaridea’ Bory de Saint-Vincent 1822^[1]
Tendaridella Gaillon, 1833^[1]

}}

Zygnema is a genus of freshwater filamentous thalloid alga comprising about 100 species.^[4] A terrestrial species, Z. terrestre, is known from India. Zygnema grows as a free-floating mass of filaments, although young plants may be found anchored to streambeds with a holdfast. The filaments form a yellow-green to bright green colored tangled mat, and are composed of elongate barrel-shaped cells, each with two star-shaped (stellate) chloroplasts arrayed along the axis of the cell.

Species

Some species include:

Z. atrocoeruleum
Z. binuclearioides
Z. carinthiacum
Z. carteri
Z. circumcarinatum
Z. coeruleum
Z. conspicuum
Z. cruciatum
Z. cyanosphaeroidicum
Z. cylindricum
Z. cylindrospermum
Z. fanicum
Z. gorakhporense
Z. insigne
Z. kashmirense
Z. kiangsiense
Z. leiospermum
Z. melanosporum
Z. momoniense
Z. normanii
Z. oveidanum
Z. pectinatum
Z. peliosporum
Z. quadrispirale
Z. ralfsii
Z. rivulare
Z. ruviatum
Z. schwabei
Z. spontaneum
Z. stagnale
Z. stellinum
Z. subtile
Z. tenue
Z. tenuissimum
Z. terrestre
Z. vaginatum
Z. vaucherii
Z. verrucosum

References

1. ^¹²³⁴⁵⁶⁷⁸Guiry, M.D. (2013). Taxonomy and nomenclature of the Conjugatophyceae (=Zygnematophyceae). {{webarchive |url=https://web.archive.org/web/20160305194117/http://www.e-algae.kr/upload/files/algae/algae_28_1_01.pdf |date=March 5, 2016 }} Algae. An International Journal of Algal Research 28: 1-29.
2. ^{{cite web |url=http://www.algaebase.org/search/genus/detail/?genus_id=ydea6a3c42bbcd3da |title=Algaebase, entry for Lucernaria |accessdate=20 February 2016}}
3. ^{{cite web |url=http://www.algaebase.org/search/genus/detail/?genus_id=Jca4863616675e2ac&sk=0 |title=Algaebase, entry for Pleurodiscus |accessdate=9 September 2014}}
4. ^{{cite web|last=Guiry|first=M.D.|last2=Guiry|first2=G.M.|year=2008| title=Zygnema|work=AlgaeBase|publisher=World-wide electronic publication, National University of Ireland, Galway|url=http://www.algaebase.org/search/genus/detail/?genus_id=43566|accessdate= 2009-02-21}}

2 : Zygnemataceae|Freshwater algae

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