NOTES ON POTENTILLA The Subviscosae is a small group of low plants with many more or less spreading branches from the caudex, with a silky or hir sute pubescence, often intermixed with almost sessile glands, but not at all tomentose ; with digitate leaves of 5-7 leaflets, and in fruit, with incurved sepals which enclose the large, but comparatively few achenes. The petals are more or less contracted at the base, z. c., semi-unguiculate, although indistinctly so in P. Wheelerz.