related links... Botanical ClassificationSeries Tripetalae(Diels) Lawrence A group of plants within the Section Limniris with standards reduced often to bristle like proportions. Diels in Engl. & Prantl, Nat. Pflanzenfam. Aufl. (1930); G.H.M. Lawrence in ‘A reclassification of the genus Iris' in Gentes Herbarium 8:346 (1953), New York. It includes the following taxa.