Research Article

Interaction between Bees and the Tristylous Flowers of Oxalis cytisoides Mart. & Zucc. (Oxalidaceae)

Table 1

Means (±standard deviation) for pollen grain sizes from the three Oxalis cytisoides floral morphs at the equatorial and polar perspectives.

Morph FilamentsEquatorialPolarP/E

Ms24.52 (±1.00)32.49 (±1.36)1.32 (±0.06)
Ls23.89 (±1.17)33.30 (±1.98)1.39 (±0.06)
Sm27.59 (±1.42)37.30 (±1.65)1.35 (±0.06)
Lm26.51 (±0.90)37.90 (±1.10)1.43 (±0.05)
Sl28.89 (±1.13)40.63 (±1.96)1.41 (±0.09)
Ml27.74 (±1.28)40.59 (±2.67)1.46 (±0.06)

S: short, M: medium, and L: long.