Page 67 - PG 101-Course notes مذكرة النظري 24-25 with spec

Medicinal plants (PG 101) Level 1 Clinical Pharmacy-PharmD

 Annular: When the thickening is in the form of rings at intervals.

 Spiral: When the wall shows a spiral line of thickening.
 Reticulate: When the thickening of the walls takes the form of
network.

 Pitted: When the whole wall becomes thickened except of numerous
small areas or pits which are usually bordered.
 Scalariform: Pits are transversely elongated giving a ladder- like
appearance.

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