tree ferns of temperate Australasia having bipinnatifid or tripinnatifid fronds and usually marginal sori; in some classification systems placed in family Cyatheaceae.
分布于温带澳大拉西亚树蕨,叶羽状分三羽状分,囊位于叶边缘;在一些分类中归入桫椤科。
tree ferns of temperate Australasia having bipinnatifid or tripinnatifid fronds and usually marginal sori; in some classification systems placed in family Cyatheaceae.
分布于温带澳大拉西亚树蕨,叶羽状分三羽状分,囊位于叶边缘;在一些分类中归入桫椤科。
Characteristics: Terrestrial ferns; stipes tuft, backlish at base; young fronds pinnaye with wider pinnae, when getting older, the fronds become bipinnate or tripinnatifid with slender pinnules.
形态:地生,叶柄丛生,基部黑色;较年轻叶子一羽状复叶,较老叶子三羽状复叶。
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