Division I
Involucrati.
Species with a basal spathe springing at the base of the scape from the summit of the corm.
SECTION I. FIBRO-MEMBRANACEI, With a corm-tunic of membranous tissue, or of membranous tissue interspersed with nearly parallel fibres.
AUTUMN-FLOWERING. asturicus, Cambessedesii, Clusii, iridiflorus, karduchorum, nudiflorus, ochroleucus, Salzmanni, Scharojani, vallicola, zonatus. SPRING-FLOWERING. Imperati, Malyi, minimus, suaveolens, versicolor. SECTION II. RETICULATI, With a corm-tunic of distincly reticulated fibres.
SPRING-FLOWERING. banaticus, corsicus, etruscus, Tommasinianus, vernus. AUTUMN-FLOWERING. hadriaticus, longiflorus, medius, sativus.