Botanical Studies

Table 2 Pollen size and stainability of Psychotria cephalophora

From: Distyly and floral morphology of Psychotria cephalophora (Rubiaceae) on the oceanic Lanyu (Orchid) Island, Taiwan

	Short-styled morph		Long-styled morph		Mann Whitney’s
	N†	Mean ± S. D.	N†	Mean ± S. D.	Utest
Pollen size (μm)§
Equatral	10	54.7 ± 2.5	10	44.2 ± 2.4	p < 0.001
polar	10	50.5 ± 2.7	10	41.1 ± 2.5	p < 0.001
E/P	10	1.08 ± 0.03	10	1.08 ± 0.02	ns‡
Pollen stainability (%)¶	10	93.1 ± 13.4	10	95.9 ± 2.6	ns‡

†N: Number of individuals examined.
§: 30 pollen grains from single flowers on each individual were measured.
¶: 200 pollen grains from single flowers on each individual were examined.
‡ns: Not significantly differnet between two floral morphs (p > 0.05).

Back to article page