Summary
The lengths of 3,427 styles from five bushes ofBauhinia acuminata L. ranged from 2 mm to 27 mm with modes at 5 and 20 millimetres. No flower had a style of 11 mm in length and only 26 flowers had style lengths between 8 mm and 10 mm. The fractions of short styled flowers obtained from the 5 bushes were 24.2%, 11.4%, 22.6%, 21.9%, and 6.1%. No order has yet been recognised in the position of the two types of flowers on any of the five bushes.
The mean lengths of the long styles on the first two plants show a significant rise and later a decrease as the day temperature rose and fell during the season. The periods of flowering of the latter three were insufficient for such comparison.
The short styled flowers are female sterile, therefore such a variation could play some part in the evolution of both dioecy and dicliny.
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Dronamraju, K.R. Non-Genetic polymorphism inBauhinia Acuminata L. J Genet 57, 299–311 (1960). https://doi.org/10.1007/BF02987235
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DOI: https://doi.org/10.1007/BF02987235