Stomata in Bougainvillea (dicots)

 

Epidermal studies in some Indian cultivars of Bougainvilleas

by Inamdar J. A., Gandadhara M., Avita Sr., Rao N. V. (1980)

in Feddes Repertorium Volume 91, Issue 4, 1980, 259–266 – DOI: 10.1002/fedr.19800910405 – 

http://onlinelibrary.wiley.com/doi/10.1002/fedr.19800910405/full

Abstract

Epidermal studies in fifteen Indian cultivars of Bougainvilleas are described.

The epidermal cells are polygonal isodiametric, or elongated with thick straight arched or slightly sinuous walls. Parallel culticular striations are radiating from guard cells.

The mature stomata are anomocytic, paracytic and with a single subsidiary cell.

The abnormal types noticed are: single guard cells with or without pores, arrested development, variously oriented contiguous stomata, cytoplasmic connections between nearby stomata and epidermal or subsidiary cells, and persistent stomatal cells.

The development of anomocytic stomata is perigenous while that of the other types is mesogenous.

Fifteen cultivars of Bougainvilleas are separated on the basis of bract colour, stomatal frequency and index per unit area.