Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Stage 1, swollen bud. (B) Stage 2, pink bud. (C) Stage 3, extended petals. (D) Stage 4, unfurling petals. (E) Stage 5, fully open. (F) Stage 6, flattened petals. (G) Stage 7, abscised petals. (H) SEM view of a stigmatic surface at stage 1. Scale bar = 80 µm. (I) Section through the surface of a stage 1 stigma stained with auramine O under fluorescence microscopy showing a cuticle layer on the surface. Scale bar = 40 µm.
