Peculiar mode of propagation in a Crinum yemense defl. (amarylldaceae)‎ population in Saudi Arabia

Abstract EN

A peculiar mode of propagation in a population of Crinum yemense Defl.

from the mountain range (2150 m.a.s.l.) in Al-Bahah District, Saudi Arabia was investigated and described in the present work, The ovary apparently lacks ovules and develops into a sub-aspherical to spherical propagule containing a single bulblet which, probably, originates as an embryo from the ovary wall.

Should more than one embryos developed, then only one survives.

The bulb increases in size at the expense of food stored in the propagule; emerging from the propagule, its basal end produces contractile roots.

The leaves are produced later from the top end which is the last stage of development of the propagule.