蛋白核为球形或椭圆形，由蛋白质组成。
Pyrenoid shaped in ball or ellipse, was composed by protein.
一般中等大小，绝大多数为圆球形，少数为近长球形或长球形。
The pollen grains are small to medium in size and spheroidal or subprolate in shape, with a few being prolate.
子房卵球形或球状；柱头2或3(- 5)，通常下弯，整个具乳突。
Ovary ovoid or globose; stigmas 2 or 3 (-5), usually recurved, papillate throughout.
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