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《Journal of Yunnan University (Natural Sciences)》 1991-01
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A Taxonomical Study on the Sect. Marginatae Eraser-Jenkins of Dryopteris (Subgen. Dryopteris) From Yunnan

Lu Shugang (Institute of Ecology and Geobotany., Yunnan University)  
Sect. Marginatae of the genus Dryopteris contains about 26 species, distributes throughout eastern and southern Asia and Africa, of which 6 species are occurrence in Yunnan arid have been recorded in this paper. A key to 6 species is given as follows. 1. Fronds markedly dimorphic D. cochleata 1. Fronds non dimorphic. 2. Rhizome wide-creeping, fronds distant. 3. Lamina angustilanceolate, pinnule pinnatipartite or pinnatisect D angustifrons 3. Lamina widly triangular-lanceolate, pinnule pinnatilobate or pinnatifid. 4. Segment with serrate on the margin, spore with scraps on the surface D. subimprissa 4. Segment with crenate on the margin, spore with thorns on the surface D. pteridiiformis 2. Rhizome short-erect, fronds fasciculate. 5. Lamina markedly smooth on the upper surface D. marginata 5. Lamina with impressed veins on the upper surface D. caroli-hopei
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