IRIDACEAE

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1980, Flora Europaea. Volume 5. Alismataceae to Orchidaceae (Monocotyledones), Cambridge: Cambridge University Press : 86

CLXXXVIII. IRIDACEAE 2

Herbaceous perennials, usually with a bulb, corm or rhizome. Leaves usually equitant, ensiform, occasionally linear. Inflorescence terminal, 1 - to many-flowered. Perianth petaloid, 6-partite, radially or bilaterally symmetrical, usually with a hypanthial tube. Stamens 3, opposite the outer perianth-segments. Ovary inferior, usually 3-locular and with many ovules. Style 3-lobed, branches entire or divided, sometimes petaloid. Fruit a capsule. 1 Style-branches petaloid 2 Stock with long, digitate root-tubers; ovary unilocular

2. Hermodactylus 2 Stock a corm, bulb or rhizome; ovary trilocular 3 Stock a rhizome or bulb; hypanthial tube present 3. Iris 3 Stocka corm; hypanthialtubeabsent 4. Gvnandriris 1 Style-branches not petaloid 4 Inflorescencenot spicate 5 Stock a slenderrhizome;stemcompressed,winged