Key to the varieties of C. crispatula, Jacobsen, 1991

Aqua-Planta 16(1): 1-33, 1991

The narrow leaved Cryptocoryne of Mainland Asia

Niels Jacobsen

Key to the varieties of C. crispatula:

1.Leaves bullate or undulate2
1.Leaves smooth4
2.Leaves 1 - 4 cm broad, bullatevar. balansae
2.Leaves narrower, 0.2 - 1.2 cm broad, undulate3
3.Leaves 0.2 - 0.4 cm broadvar. tonkinensis
3.Leaves 0.6 - 1.2 cm broadvar. flaccidifolia
4.Leaves rather stiff, 10 - 15 (-20) cm long, 0.8 - 1.5 cm broadvar. sinensis
4.Leaves longer and/or narrower5
5.Leaves very narrow, 0.2 - 0.4 cm broad, 20 (-30) cm long, very flaccidvar. tonkinensis
5.Leaves 0.6 - 1.2 cm broad, 15 - 50 cm long, rather stiff or flaccid6
6.Leaves rather stiff, 15 - 40 cm long, margin smooth or denticulatevar. crispatula
6.Leaves flaccid, 20 - 50 cm long, margin smoothvar. flaccidifolia







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Richard J. Sexton