Pollen grains are cocoon-shaped, rarely subprolate, prolate or ovoid, very small, 7～.7 μm× .～ .9 μm in size, P/E=.～.0;
Pollen grains are cocoon-shaped, rarely subprolate, prolate or ovoid, very small, 7～.7 μm× .～ .9 μm in size, P/E=.～.0;
该族花粉为茧形 ,少数为近长球形、长球形或卵球形 ; 体积很小 ,大小为 7～ .7μm× .～ .9μm ,P/E = .～ .0 ;