Observations on Normal and Abnormal Stomatal Features in Four Species of Asparagus L.

Structure and development of stomata are reported in four species of Asparagus. The study was made on both foliar and floral organs of two species but only on foliar organs of the other two. The stomata are anomocytic in all organs studied and follow a similar type of development in different organs. Stomata with one subsidiary cell are rare. Abnormalities such as contiguous stomata, degenerate guard cells, and cytoplasmic strands between guard cells of nearby stomata were found. The latter are reported here in monocotyledons for the first time.