Bacillariophyta;
Encyonopsis;
fens;
new species;
The Netherlands;
D O I:
10.11646/phytotaxa.66.1.7
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
A new cymbelloid diatom species, Encyonopsis neerlandica sp. nov., is described from several moorland pools from The Netherlands. The new species belongs to the complex of species around E. microcephala. Based on light and detailed scanning electron microscopy, the morphology of Encyonopsis neerlandica is discussed and compared to similar species from this complex. Encyonopsis neerlandica is characterized by its rather large valve dimensions, the narrowly to clearly lanceolate valve outline with convex to weakly convex margins and rostrate to subcapitate apices. The distal raphe fissures are ventrally deflected. There is a clear difference between the rounded areolae near the valve margin and the transapically elongated areolae near the axial area. Notes on the ecology of the species are included.
机构:
Calif State Univ San Marcos, Dept Biol Sci, San Marcos, CA 92096 USACalif State Univ San Marcos, Dept Biol Sci, San Marcos, CA 92096 USA
Stancheva, Rosalina
Manoylov, Kalina M.
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机构:
Georgia Coll, Dept Biol & Environm Sci, Milledgeville, GA 31061 USA
State Univ, Milledgeville, GA 31061 USACalif State Univ San Marcos, Dept Biol Sci, San Marcos, CA 92096 USA