Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2014 Dec 22;7:plu090. doi: 10.1093/aobpla/plu090

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Published by Oxford University Press on behalf of the Annals of Botany Company.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Figure 3. — Scanning electron micrographs (A, B, F) and photomicrographs (C–E, G, H) of osmophores in different developmental stages of flower buds of sweet orange (C. sinensis ‘Valência’). (A–C) Flower buds 3 mm long. The region exposed is composed of papillary cells among which the stomata occur (arrow in B). (C) Note starch accumulation in the papillary cells. (D and E) Buds 8 mm long. Papillary cells stained with neutral red dye (D) and with Nile blue sulfate (E). (F–H) buds 12 mm long. (F) Papillary cells (arrows) that react positively to neutral red dye (G) and ferric chloride (H). ABE, abaxial epidermis; ADE, adaxial epidermis; ME, mesophyll; PA, papillae; PP, petal primordia; SP, sepal primordia.