perigynous

adj.

周位的，周位排列的；

perigynous:
Manual of British Botany: CALYCIFLORÆ. Pet. distinct and, as well as the stam., perigynous or epigynous
I. Observations on the Perigynous Insertion of the Stamina of Plants
Schizonotus dumosus Koehne. H. microphyllus Rydb.
Floral Anatomy in the Saxifragaceae Sensu Lato. II. Saxifragoideae and Iteoideae
The floral biology of Nymphaea odorata (Nymphaeaceae).
THE GENERA OF AMARANTHACEAE IN THE SOUTHEASTERN UNITED STATES
Floral Morphology of Maloideae (Rosaceae) and its Systematic Relevance
Molecular Phylogenetics of the Leafy Cactus Genus Pereskia (Cactaceae)
Ontogeny and Structure of the Flower and Fruit of Pereskia aculeata