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Gross Morphology of R. aquatica.
(A) Side view of a shoot under submerged condition.
(B) Side view of a shoot in terrestrial condition.
(C) Mature leaf morphology. Left, submerged condition; right, terrestrial condition.
(D) Effects of change in water temperature on leaf morphology. Left, 20°C; center, 25°C; right, 30°C. All silhouettes of leaves are based on photographic images of the 7th leaves.
Bars = 2 cm in (A) and (B) and 1 cm in (C) and (D).
