| Abstract: | The structure and ontogeny of stomata in vegetative and floralorgans of three species of Kalanchoe is described. The matureanisocytic stomata are mono-cyclic or completely or incompletelyamphicyclic, rarely paracytic, transitional between paracyticand anisocytic and with a single subsidiary cell. The developmentof all the types is syndetocheilic or mesogenous from organto organ but the mature stomatal apparatus varies from organto organ as regards the number and arrangement of subsidiarycells. Abnormal stoma with a single guard cell and arresteddevelopment were observed on all organs. An abnormal stoma witha single guard cell develops directly from the meristemoid. |
