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Isoetaceae Habit: Perennial herb, aquatic to terrestrial. Stem: buried, corm-like, 2--3-lobed, corky, brown. Leaf: simple, in grass-like tufts, spirally arranged on stem top, erect to spreading, < 30 cm, linear above base. Sporangia: solitary, embedded in wide leaf base, < 1 cm, +- covered by a translucent membrane, male or female; male spores > 10000, < 0.045 mm, +- bean-shaped, gray or brown in mass; female spores 20--200, 0.2--0.7 mm, spheric, white, +- smooth, ridged, tubercled, or prickly. Genera In Family: 1 genus, 200+ species: worldwide. Jepson eFlora Author: W. Carl Taylor & Jon E. Keeley Reference: Taylor et al. 1993 FNANM 2:64--75 Unabridged Reference: Pfeiffer 1922 Ann Missouri Bot Gard 9:79--233 Scientific Editor: Alan R. Smith, Thomas J. Rosatti. Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Next taxon: Isoetes |