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Bổ sung loài Piper minutistigmum C. DC. (Piperaceae) cho hệ thực vật Việt Nam

Trong quá trình nghiên cứu họ Hồ tiêu (Piperaceae) ở Thanh Hóa, Nghệ An và Hà Tĩnh, chúng tôi đã phát hiện và ghi nhận bổ sung loài Piper minutistigmum C. DC. cho hệ thực vật Việt Nam, nâng tổng số loài của chi này lên 44 loài. | Bổ sung loài Piper minutistigmum C. DC. (Piperaceae) cho hệ thực vật Việt Nam VNU Journal of Science: Natural Sciences and Technology, Vol. 35, No. 1 (2019) 1-4 Original article A New Record of Piper Minutistigmum C. DC. (Piperaceae) for Flora in Vietnam Hoang Van Chinh1,2, Tran Minh Hoi3, Do Ngoc Dai4,* 1 Graduate University of Science and Technology, Vietnam Academy of Science and Technology 2 Hong Duc University 3 Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology 4 Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics Received 25 December 2018 Revised 10 March 2019; Accepted 16 March 2019 Abstract: The genus Piper has about 1.500 species mainly distributed in tropical, there were 43 Piper species recorded in Vietnam. In this paper, we reported Piper minutistigmum C. DC. newly recorded for the flora of Vietnam. Voucher specimens were collected in Thanh Hoa province (Ben En National park), Nghe An province (Pu Mat National Park: Khe Kem), Ha Tinh province (Vu Quang National park: Doc De) deposited in the Herbarium of the Faculty of Biology, Vinh University and Herbarium of the Institute of Ecology and Biological Resources (HN) Ha Noi, Vietnam. Woody clember, 3-12 m high. Petiole 3-8 mm, glabrous or sometimes sparsely pubescent; leaf simple, alternate, ovate, 6-11 × 3-7 cm, leaf blade toward apex aute, glabrous or sometimes sparsely pubescent, base oblique, 1 side rounded, other side tapered and acute, bilateral difference 3-4 mm, apex acute to long acuminate; veins 3-4, usually 1 more lateral vein on wider side, apical pair arising along midvein. Male spikes is smilar to female spikes, 5-10 x 1-1,5 cm., peduncle 1-1,2 cm, bracts 1-1,5 cm. Fruit a drupe, globose, 1-2 mm, often red. Keywords: Piper minutistigmum, Piperaceae, Ben En, Pu Mat, Vu Quang, National Park . Corresponding author. Email address: .