SEAGO, JAMES L. Department of Biology, SUNY at Oswego, Oswego, NY, 13126. - Root cortex development in Cyperus alternifolius.
This study is a continuation of my analyses of the development and
structure of the root cortex in wetland plants. The root cortex in
Cyperus alternifolius is very large. It has an endodermis with
Casparian bands, suberin lamellae, and secondarily lignified walls.
The inner cortex is 5-8 cells thick with slightly thickened cellulosic
walls. The bulk of the cortex is lysigenous-originated arenchyma; the
circumferential lysigenous cells are held in place by radial strands
of cells. The hypodermis is multi-layered with a uniseriate exodermis.
The exodermis contains Casparian bands and suberin lamellae.
Key words: arenchyma., Cyperus alternifolius, Root cortex development