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

The narrow leaved Cryptocoryne of Mainland Asia

Niels Jacobsen

Jacobsens milestone 1991 paper revising his 1980 paper about the albida complex (albida, crispulata and retrospiralis). All other strap leaved forms (except APO) are placed as varieties of crispulata.