西藏独活属一新种

微绒毛独活 新种 图1 Heraclenm subtomentellum C. Y. Wu et Sheh, sp. nov. Species affinis H. fargesii de Boiss. sed laminis ambitu ovato-lanceolatis, pinnatisectis 3—4-jugo-pinnatisectis, radiis paucis, 6—13 differt. Herba perennis, 45—80 cm alta, tota tomentella. Caudex 1.5—3 cm crassus. Radix crassa cylindracea, leviter lignescens. Caulis aliquot vel solitarius teres striatus prominens, in medio ramosus. Folia basilaria numerosa rosulata, petiolis 5—11 cm longis, vaginis late ovato-lanceolatis, nervis prominentibus, laminarum ambitus ovato-oblonga, 5—9 cm longa, 3—5 cm lata, 3—4-jugo-pinnatisecta, pinnis inferne ovatis vel longe ovatis, interdum trilobatis, apicibus obtusis vel rotundis, basibus truncatis vel subcuneatis 1.3—3.5 cm longis, 1.2—2.5 cm latis, petiolulatis brevibus, marginibus irregulariter serratulis, dorsa liter leviter glaucis, nervis prominentibus, pinnis mediis ovalis subsessilibus, pinnis superne rhombiformibus vel suborbicularibus,