(i) Diacytic : It is surrounded by two subsidiary cells and the cells are at right angles to the two guard cells. Plants like Chirata, Kalsi etc. have diacytic stomata.
(ii) Paracytic : It is surrounded by two subsidiary cells and the cells lie parallel to the two guard cells. Dye plants have paracytic stomata.
(iii) Anisocytic : It is surrounded by three subsidiary cells and one of them is small. Plants like mustard, tobacco, brinjal etc. have anisocytic stomata.
(iv) Tratacytic: It is surrounded by four subsidiary cells.
(v) Actinocytic: It is surrounded by many elongated cells. Plants in the family Ebenaceae have actinocytic stomata.
(vi) Anomocytic : The cells surrounding the stomata are associated with normal cells. Plants such as Nayantara and Cucurbita have anomocytic stomata.
(vii) Gramineous : The stomata are covered by two guard cells and two accessory cells. Plants like paddy, wheat, sugarcane, bhutra, grass etc. have gramineous stomata.