Rudall & Chase, Systematics of Xanthorrhoeaceae sensu lato 
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Fig. 1. Stomatal development, a, Lomandra preisii, agenous development, with equal divisions in 
cells adjacent to the meristemoid, sometimes forming oblique end walls; b, c, Dasypogon bromeliifolius, 
both mesogene and perigene cells present, (g = guard cell, m = meristemoid, p = perigene cell, 
X = mesogene cell). Scale bar = 10pm. 
