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Issue: Vol. 618 No. 1: 29 Sept. 2023
Type: Article
Published: 2023-09-29
DOI: 10.11646/phytotaxa.618.1.5
Page range: 59-68
Abstract views: 182
PDF downloaded: 12

Description of a new species of the genus Mallomonas from section Mallomonas (Synurales, Chrysophyceae) in the tropics

A.N. Severtsov Institute of Ecology and Evolution; Russian Academy of Sciences; Leninsky Prospect 33; 119071 Moscow; Russia
A.N. Severtsov Institute of Ecology and Evolution; Russian Academy of Sciences; Leninsky Prospect 33; 119071 Moscow; Russia
Institute of Plant Physiology; Russian Academy of Sciences; Botanical Street 35; 127276; Moscow; Russia
Coastal Branch of Joint Vietnam-Russia Tropical Science and Technology Research Center; 30 Nguyen Thien Thuat; Nha Trang 650000; Vietnam
Algae Synurales Mallomonas section Mallomonas scale ultrastructure new species tropics

Abstract

Mallomonas pseudocorymbosa sp. nov. was described from Vietnam based on silica-scale morphology studied by transmission and scanning electron microscopy. This species belongs to the section Mallomonas. The distribution and habitat conditions of the new species were summarised. Mallomonas pseudocorymbosa was found in 17 localities in 13 provinces in Vietnam. A revision of the records in the tropical region of similar species Mallomonas corymbosa initially described from the arctic latitudes was made. All findings of Mallomonas corymbosa in the tropical region and the southern hemisphere belonged to Mallomonas pseudocorymbosa. Based on the available data, Mallomonas corymbosa has a northern temperate distribution.

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