Notes on the flora of Yemen. 1 : morphological and anatomical studies on cuscuta planiflora tenore. (cuscutaceae)‎ collected from Jabal an-Nabi Shu’ayb, Sana', Yemen, with the reference of its phytogeographical distribution

الملخص EN

Cuscuta planiflora is a parasitic plant on numerous plants from different families such as Lamiaceae (Thymus laevigatus), Acanthaceae (Hypoestes forsskalii) and Dipsaceae (Pterocephalus frutescens).

Morphological, anatomical and phytogeographical studies where carried on the Cuscuta planiflora which was collected from Jabal An-Nabi Shu’ahyb located 30 km west of Sanaá the capital of Yemen, with coordinates (043° 58- - 043° 59- E &15° 14- -15° 15- N ).

The morphological study includes stem morphology and floral structure.

Anatomically, the cross, lateral section of the stem and lateral section of the haustoria’s area, were studied.

Phytogeographical studies were done by studying its distribution in Yemen and in plant geographical regions.