adv.向外地；外向地；外傾地

Petals free or almost so, yellow to red or purplish red, subglobose-urceolate, S-shaped in longitudinal section, apically extrorsely vaulted curved, base concave, apex sometimes thickened. 花瓣離生或幾乎如此，同數(shù)的雄蕊花瓣，著生于萼片，稍短于花瓣。

anthers 2-celled, extrorsely dehiscent by longitudinal slits, connective slightly protruded, exceeding apex of locule forming apiculate appendage. 花藥2室，通過縱裂縫向外地開裂的，藥隔稍突出，超過室先端形成具細(xì)尖的附屬物。