The life - span of pollen is 15 to 20 days under room condition and 2 months under 4 + 2c ; the life - span of receptive stigmas is 5 days . in spite of protogyny , the meeting time of life of effective pollen and stigma of two species are respectively 2 days and 0 蜡梅与亮叶蜡梅尽管存在雌雄异熟现象，但同朵花内的雌、雄蕊的功能在时间上可遇，有效可遇期分别为2d和0 . 5d 。
