Cocconeis crisscrossis sp. nov., a new monoraphid diatom (Bacillariophyta) from southern China

被引：1

作者：

Zhou, Huiwen ^{[1
]}

Yu, Pan ^{[2
]}

Guo, Luyi ^{[1
]}

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

Wang, Quanxi ^{[1
]}

You, Qingmin ^{[1
]}

机构：

[1] Shanghai Normal Univ, Coll Life Sci, Shanghai 200234, Peoples R China

[2] Shanghai Normal Univ, Coll Environm & Geog Sci, Shanghai 200234, Peoples R China

[3] Univ Colorado, Museum Nat Hist, UCB 218, Boulder, CO 80309 USA

[4] Univ Colorado, Dept Ecol & Evolutionary Biol, UCB 218, Boulder, CO 80309 USA

来源：

PHYTOKEYS | 2024年 / 242期

基金：

上海市自然科学基金;

关键词：

diatoms; monoraphid; morphology; new taxa; taxonomy;

D O I：

10.3897/phytokeys.242.123316

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A novel monoraphid diatom species, Cocconeis crisscrossis You, Yu, Kociolek & Wang, sp. nov. is examined and described from the Qingyi River and Maolan Nature Reserve of southern China. The morphological description is based on light microscopy and scanning electron microscopy observations and the new species is compared with similar taxa in this genus. The characteristics unique to Cocconeis crisscrossis sp. nov. include its central area extending irregularly to both sides, it having closed valvocopulae with heavily silicified fimbriate margins and poles of the valvocopulae have 'sword-shaped' siliceous extensions. These features differentiate this new species from others in the genus. This new species was found in alkaline waterbodies, including streams, waterfall and ponds. It was usually found as an epiphyte on the stones; however, it was present on other substrates such as mosses.

引用

页码：39 / 50

页数：12

共 24 条

[1]

Chin TG, 1951, Amoy fisheries bulletin, V1, P41

[2] Freshwater Cocconeis species (Bacillariophyceae) from Southeastern Brazil, and description of C. amerieuglypta sp. nov. [J].

Costa, Livia F. ;

Wetzel, Carlos E. ;

Ector, Luc ;

Bicudo, Denise C. .

BOTANY LETTERS, 2020, 167 (01) :15-31

[3] Additional morphological features of the epiphytic diatom Cocconeis sawensis Al-Handal & Riaux-Gobin (Cocconeidaceae, Bacillariophyta) from a coastal lagoon, Southern Brazil [J].

Donadel, Leticia ;

Torgan, Lezilda Carvalho ;

Al-Handal, Adil Y. .

PHYTOTAXA, 2018, 371 (03) :217-229

[4]

Ehrenberg C.G., 1838, Die infusionsthierchen als vollkommene organismen.: Ein blick in das tiefere organische leben der natur, DOI DOI 10.5962/BHL.TITLE.58475

[5] On Representatives of Diatoms (Bacillariophyta) New for Science from the Exclusion Zone of the Chernobyl Nuclear Power Plant (Ukraine) [J].

Genkal, S., I ;

Shcherbak, V., I ;

Semenyuk, N. Ye .

INLAND WATER BIOLOGY, 2022, 15 (04) :501-505

[6]

Guiry M D., 2023, AlgaeBase

[7] VARIABILITY IN THE STRUCTURE OF THE GENUS COCCONEIS EHR (BACILLARIOPHYTA) WITH SPECIAL REFERENCE TO THE CINGULUM [J].

HOLMES, RW ;

CRAWFORD, RM ;

ROUND, FE .

PHYCOLOGIA, 1982, 21 (03) :370-381

[8] Cocconeis pediculus EHRENBERG and C. placentula EHRENBERG var. placentula (Bacillariophyta): Typification and taxonomy [J].

Jahn, Regine ;

Kusber, Wolf-Henning ;

Romero, Oscar E. .

FOTTEA, 2009, 9 (02) :275-288

[9] OBSERVATIONS ON THE VALVE STRUCTURE OF MARINE SPECIES OF THE DIATOM GENUS COCCONEIS EHR [J].

KOBAYASI, H ;

NAGUMO, T .

HYDROBIOLOGIA, 1985, 127 (02) :97-103

[10]

Kociolek J.P., 2023, DiatomBase

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