Compared with collecting in Hubei Institute for Nationalities, shaded prothallium and sporophyte after collecting Osmunda japonica Thund. spores germinate in Hangzhou both have better heat-tolerance.

• 在杭州采集的紫萁孢子萌发后形成的原叶体、孢子体均比在湖北民族学院采集的耐高温性好。