TAILIEUCHUNG - The fern genus arachniodes (Dryopteridaceae): A new record for the flora of Vietnam

This paper presents a new record of the fern genus Arachniodes Blume from Vietnam, Arachniodes simplicior. The paper provides a detailed description of the new species based on the traditional morphological method, of which micro morphological characters of spores were firstly described based on the specimens collected from Quang Binh (Minh Hoa district), Vietnam. In addition, type materials of A. simplicior were analyzed and a specimen from MAK (MAK012702) was designated as a lectotype. | VNU Journal of Science Natural Sciences and Technology Vol. 36 No. 4 2020 77-81 Original Article The Fern Genus Arachniodes Dryopteridaceae A New Record for the Flora of Vietnam Vu Phuong Linh1 Nguyen Trung Thanh1 Doan Hoang Son2 Lu Thi Ngan3 1 VNU University of Science 334 Nguyen Trai Hanoi Vietnam 2 Institute of Ecology and Biological Resources Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Cau Giay Hanoi Vietnam. 3 Vietnam National Museum of Nature Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Cau Giay Hanoi Vietnam Received 02 August 2020 Revised 22 November 2020 Accepted 29 November 2020 Abstract This paper presents a new record of the fern genus Arachniodes Blume from Vietnam Arachniodes simplicior. The paper provides a detailed description of the new species based on the traditional morphological method of which micro morphological characters of spores were firstly described based on the specimens collected from Quang Binh Minh Hoa district Vietnam. In addition type materials of A. simplicior were analyzed and a specimen from MAK MAK012702 was designated as a lectotype. Keywords Arachniodes simplicior Dryopteridaceae new record flora of Vietnam. 1. Introduction online 3 listed 67 accepted species and 14 hybrids while the most recently study by Lu et The genus Arachniodes Blume al. in 2018 showed that the genus contains about Dryopteridaceae is one of the most confusing 83 species worldwide 4 . China is considered as and controversial fern genera in terms of one of the most diversity centers of Arachniodes circumscription nomenclature and taxonomy. It with 40 species are recorded 5 . In Vietnam the is a pantropical genus commonly distributed in number species of the genus has more than subtropical and tropical forest regions of the double since Pham and Phan studied of two world mainly abundant in China and southern decades ago 7 8 . There are 11 species have and southeastern Asia 1 with 60 species PPGI listed by Phan in 2010 6 .

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