The flavonoid chemosystematics of Egyptian Verbena species.

The genus Verbena L. (Verbenaceae) comprises 250 species mainly in tropical and temperate America. It is represented in Egypt by two species viz. Verbena ozcinalis L. and V. supina L. (Taeckholm, 1974). Verbena ozcinalis is widely distributed mainly in the northern hemisphere while V. supina is of Mediterranean, West Irano}Turanian and East Saharo-Arabian distribution (Fienbrun-Dothan, 1978). In Egypt both species are distributed in the Mediterranean coastal area, Nile Valley and Oases. Aerial parts of Verbena ozcinalis L. was collected at the #owering stage from (1) Kafr El-Dwaar, Behiera 19.3.1993 (El-Garf); (2) Kom Hammada, ElBehiera in March 1998, (El-Garf, 600) and Verbena supina L. was collected from (1) Wadi Halazeen, 40 km West Mersa Matrouh 25.4. 1996 (El-Garf 1010). (2H)14 km on the way from Mersa Matrouh 22.5.1963, Taeckholm. (3H) Assiut University, 12.5.-1962, Taeckholm. Voucher specimens are present in the Herbarium of Cairo University (CAI) and National Research Center (CAIRC).