Table 1. Floral/fruit displays, flower and fruit measurements, and nectar production for individuals of populations of Psittacanthus calyculatus and P. auriculatus in sympatry (CO and AO, respectively), and for those from one P. calyculatus population in allopatry (CT).

Size measurements are expressed in millimeters (mm) and longevity in days (d). Numbers (mean ± SD) with different letters are significantly different after comparisons at P = 0.05 using the adjustment Tukey method.

Variable	CT		CO		AO
	n	Mean ± SD	n	Mean ± SD	n	Mean ± SD
Number of buds/plant	15	101.9 ± 59.2 a	15	108.6 ± 54.2 a	15	222.3 ± 69.8 b
Number of open flowers/plant	15	31.9 ± 22.9 a	15	12.4 ± 9.1 b	15	6.2 ± 5.4 b
Number of fruits/plant	15	89.5 ± 47.7 a	15	54.4 ± 37.7 a	15	95.1 ± 63.4 a
Ovary length	30	3.92 ± 0.65 a	30	4.20 ± 1.11 a	30	3.32 ± 0.73 b
Anther length	30	3.58 ± 0.32 a	30	4.86 ± 1.03 b	30	7.07 ± 2.28 c
Filament length	30	29.38 ± 4.15 a	30	76.16 ± 19.17 b	30	35.72 ± 11.19 c
Style length	30	33.29 ± 4.31 a	30	83.46 ± 26.58 b	30	41.37 ± 9.69 c
Flower longevity	30	6.27 ± 1.17 a	30	4.77 ± 0.86 b	30	2.43 ± 0.57 c
Nectar volume (μL/flower/day)	20	47.63 ± 20.25 a	20	76.95 ± 37.37 b	20	77.55 ± 35.06 b
Standing crop (μL/flower)	200	9.60 ± 1.24 a	200	10.91 ± 1.36 a	200	4.17 ± 1.65 b
Standing crop (mg/ml/flower)	200	0.18 ± 1.11 a	200	0.23 ± 0.13 a	200	0.17 ± 0.97 b
Replenished nectar (μL/flower)	20	14.65 ± 2.75 a	20	31.32 ± 1.15 a	20	36.46 ± 1.61 a
Pedicel length	53	15.80 ± 1.83 a	53	23.09 ± 2.12 b	53	14.26 ± 1.81 c
Fruit length	53	13.87 ± 0.83 a	53	17.71 ± 0.77 b	53	13.02 ± 0.82 c
Fruit width	53	9.94 ± 0.85 a	53	11.00 ± 0.54 b	53	9.07 ± 0.80 c