NOTES ON POTENTILLA The Amvae resemble much the Fitidae except that the leaves have more than three leaflets. They are all low plants, generally less than 2 cm. high, except P. dissecta, which sometimes reaches a height of 3 cm. The pubescence is scant, silky, strigose or hirsute, only in a variety of P. dissecta a little tomentose on the lower surface of the leaves, and the plant often becomes glabrous and shining in age. The style in all is very slender and filiform,
fastened near the apex of the achene and generally much longer than the achene. Most of the species belonging to this group have truly digitate leaves, but in the North American representatives the outer leaflets are often inserted lower down and the leaves be come pinnate with approximate leaflets.