Table 2.

Number of stamens per cyathium, and pollen grains per stamen and cyathium in male and hermaphrodite cyathia from the same level of the inflorescence

		Stamens/cyathium							Pollen/stamen							Pollen/cyathium
Population	Cyathium sexuality	N	n	Mean ± s.e.	Range	N	n	Mean ± s.e.	Range	N	n	Mean ± s.e.	Range
El Gandul	Male	10	30	23 ± 0·6a	16–29	5	28	1000 ± 26·2a	705–1242	5	14	20951 ± 1159a	13152–26959
	Hermaphrodites	10	30	20 ± 0·6b	13–25	5	28	988 ± 22·3a	761–1231	5	14	16638 ± 721b	11908–20366
	Total	10	60	21 ± 0·5	13–29	5	56	993 ± 17·0	705–1242	5	28	18676 ± 797	11908–26959
Hinojos	Males	10	20	21 ± 0·7a	14–27	5	18	897 ± 30·1a	726–1174	5	9	18883 ± 1373a	12607–24636
	Hermaphrodites	10	20	17 ± 1·0b	10–25	5	18	782 ± 41·6a	566–1155	5	9	13718 ± 2018a	7105–25425
	Total	10	40	19 ± 0·7	10–27	5	36	840 ± 27·1	566–1174	5	18	16300 ± 1340	7105–25425

N = number of plants, n = number of samples.

In each population, means followed by different letters indicate significant differences (α < 0·05).