Taxa Count: 19

PORELLACEAE

Porella

Porella alpina

Porella arborea

Porella bolanderi

Porella cordaeana

Porella dentata

Porella leiboldii

Porella maxonii

Porella mexicana

Porella navicularis

Porella pinnata

Porella pinnata var. (or

Porella platyphylla

Porella platyphylloidea

Porella rivularis

Porella roellii

Porella swartziana

Porella wataugensis

Family Not Defined

Porella involuta