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a.1.(Bot.) Shaped like a horseshoe.
References in periodicals archive ?
Stamens 10, the filaments not dilated basally, straight, glabrous or with short hairs; anther dehiscing by terminal pores or [+-] elongated slits, inverting just before anthesis, appendages uncommon, small, smooth, paired, at anther--filament junction, or anthers hippocrepiform, dehiscing by slits, appendages none, surfa ce usually smooth, endothecium at most poorly developed, pollen monadinous.
Anthers not hippocrepiform (0); anthers hippocrepiform (1) 66.