囊群 sorus
- 孢子囊群靠近中脉著生;囊群盖球形,膜质。
Sori borne near the costule, indusium spherical, membranous. - 孢子囊群圆形,沿中脉两侧各排成2-3行,无囊群盖。
Sori hemispheroid, in 2-3 series on each side along the costules, without indusium. - 孢子囊群1-5对,生于末回裂片下面近基部小脉顶端;囊群盖成熟时对开2裂。
Sori 1-5 pairs borne on the lower surface of ultimate lobes at the end of basal veins; indusium dehiscent in two equal halves when mature.
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