If the sepals are joined at their lateral margins a calyx tube is formed , the mouth of which may be extended into lobes or teeth 有的花萼的一边生出短小的管状突起,称为距,它可以延伸进入其他的结构。
Calyx tube constricted at apex ; petals 5 , white , with pellucid dots , pubescent ; fertile stamens 5 ; filaments longer than petals , anthers 1 . 5 - 2 . 5 mm long , pubescent ; staminodes 15 , 10 of them gland - like , ovoid , inserted on the base of filaments , rest 5 globose ; style villous ; stigma dilated into an undulate crest 花萼管顶端稍缢缩;花瓣5 ,白色,有透明腺点,被短柔毛;发育雄蕊5枚,花丝长于花瓣,花约1 . 5 - 2 . 5毫米,被短柔毛;退化雄蕊15枚,其中10枚腺体状,卵球形,著生于发育雄蕊花丝基部,另5枚球形;花柱被柔毛,柱头鸡冠状。
英文解释
the cuplike or ringlike or tubular structure of a flower which bears the sepals and stamens and calyx (as in Rosaceae) 同义词:hypanthium, floral cup,