Floral changes in <em>Androsace lanuginosa</em> (Primulaceae)
Martha R. Weiss University of California Department of Integrative Biology Berkeley California 94720 USA
Androsace lanuginosa, floral changes
BSA Plant Images Online -
The central yellow ring of a young Androsace lanuginosa (Primulaceae) flower turns red over several days, while the rest of the flower remains fresh and unchanged. The color presumably signals the plant's fly pollinators, which visit only rewarding,yellow-phase flowers. Such floral color changes occur in at least 77 families in 33 orders.
copyright: Martha R. Weiss, BSA