Table 3. Cellular parameters of the proximal chalaza.

	Tissue
Stage*	Anterior proximal chalaza			Posterior proximal chalaza
	N cells	Cell volume (μm3)	Tissue volume (x104 μm3)	N cells	Cell volume (μm3)	Tissue volume (x104 μm3)
2-III	-	-	-	35 ± 5	113 ± 41.2	0.4 ± 0.08
2-IV	9 ± 2	160 ± 59.6	0.14 ± 0.03	48 ± 9	109 ± 45.6	0.52 ± 0.1
2-V	13 ± 6	226.4 ± 77.3	0.31 ± 0.1	71.2 ± 10	120 ± 52.7	0.85 ± 0.1
3-I	32 ± 8	270.4 ± 121.3	0.87 ± 0.2	86 ± 20	120 ± 59.5	1 ± 0.2
3-II	50 ± 8	298 ± 156	1.5 ± 0.2	108 ± 19	127 ± 70	1.3 ± 0.2
3-III	51 ± 13	318.1 ± 192	1.6 ± 0.35	121 ± 32	124 ± 68	1.5 ± 0.3
3-IV	52 ± 11	347.5 ± 198.2	1.8 ± 0.36	138 ± 18	128 ± 73	1.7 ± 0.2
3-V	60 ± 14	336.8 ± 227.4	2 ± 0.4	148 ± 27	126 ± 70.5	1.8 ± 0.4
3-VI	59 ± 6	428.7 ± 284.4	2.5 ± 0.4	209 ± 31	132 ± 90.7	2.7 ± 0.4

* Number of 3D digital ovules scored: 10 (stages 2-II- 3-II, 3-IV, 3-VI), 11 (stages 3-III, 3-V).

Values represent mean ± SD.