This study aims to compile a detailed checklist of grammitid specimens kept in the Biological Museum Herbarium under VNU University of Science (HNU). The study adopted the Pteridophyte Phylogeny Group classification (PPG I 2016) to classify these specimens and fifteen references were used to identify their scientific names. | VNU Journal of Science Natural Sciences and Technology Vol. 36 No. 4 2020 9-18 Original Article Detailed Checklist of the Grammitid Specimens from the Biological Museum Herbarium under VNU University of Science HNU Phan Ke Loc1 Nguyen Cong Toan2 Le Hong Thom3 1 VNU University of Science 334 Nguyen Trai Hanoi Vietnam 2 Faculty of Biology Biological Museum VNU University of Science 17 Le Thanh Tong Hoan Kiem Hanoi Vietnam 3 VNU University of Education 144 Xuan Thuy Cau Giay Hanoi Vietnam Received 04 January 2020 Revised 13 April 2020 Accepted 13 April 2020 Abstract This study aims to compile a detailed checklist of grammitid specimens kept in the Biological Museum Herbarium under VNU University of Science HNU . The study adopted the Pteridophyte Phylogeny Group classification PPG I 2016 to classify these specimens and fifteen references were used to identify their scientific names. Detailed field labels in HNU provided various and rich data for compiling the checklist. The study analyzed 43 collection field numbers and identified 16 species of 7 genera. The richest in species was Oreogrammitis with 5 species two genera Prosaptia and Scleroglossum each with 3 species one genus Calymnodon with two species and three other genera Cteropterella Themelium and Tomophyllum each with one species. Keywords Detailed checklist field labels grammitids PPG I 2016 HNU. 1. Introduction occasionally terrestrial rhizomes erect and radial with stipes in whorls or creeping and Grammitidoideae Parris amp Sundue is a dorsiventral with stipes in two rows stipes subfam. of the family Polypodiaceae amp glabrous or with hairs of various kinds rarely with 33 genera and an estimated 911 with scales at the base laminae simple to species 1 . They are ferns usually small often tripinnatifid glabrous or with hairs of various pendulous epiphytes and lithophytes types sori without indusial sporangia glabrous ____ Corresponding author. Email address pkeloc@ https
