New Freshwater Gomphonemoid Diatoms from Streams in the Sierra Nevada Mountains, California, USA

被引：18

作者：

Stancheva, Rosalina ^{[1
]}

Sheath, Robert G. ^{[1
]}

Kociolek, Patrick ^{[2
,3
,4
]}

机构：

[1] Calif State Univ San Marcos, Dept Biol Sci, San Marcos, CA 92096 USA

[2] Univ Colorado, Museum Nat Hist, Boulder, CO 80309 USA

[3] Univ Colorado, Dept Ecol & Evolutionary Biol, Boulder, CO 80309 USA

[4] Univ Michigan, Biol Stn, 9009 Biol Rd, Pellston, MI 49769 USA

来源：

PHYTOTAXA | 2016年 / 289卷 / 02期

关键词：

Gomphonema; Gomphoneis; Bacillariophyta; diatom; endemic; streams; California; new species; electron microscopy; NORTHERN ROCKY-MOUNTAINS; NAVICULA BACILLARIOPHYTA; ULTRASTRUCTURE; TAXONOMY; GENUS; ZYGNEMATOPHYCEAE; CHAROPHYTA; ENDEMISM; REVISION; IDENTITY;

D O I：

10.11646/phytotaxa.289.2.2

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Light and scanning electron microscopic observations of three new species of freshwater gomphonemoid diatoms are presented from mountain streams in California: Gomphonema californicum sp. nov., Gomphonema sierrianum sp. nov., and Gomphoneis oreophila sp. nov. Two of the species have morphological novelties related to the structure of the areolae, which are discussed in comparison with similar taxa. Gomphonema californicum shows a variety of areolar morphologies (i.e. lineola-like, c-shaped, and circular) within a single uniseriate stria. Unique to Gomphoneis oreophila, a member of the Herculeana subgroup, are the uniform areolae with circular openings without apparent occlusions. All of these species are distributed in remote streams of the Sierra Nevada Mountains of California, suggesting there are still new species to be found in this biodiversity-rich region.

引用

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页码：118 / 134

页数：17

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