S.I. ALI

Perennial, erect, 22-42 cm tall, roots long, many from the woody base, branches pubescent. Leaf opposite. Petiole 4-8 mm long. Leaf (2.5)-5.5-7.9 cm x 8-18 mm, ovate-lanceolate, almost glabrous, with a few hairs along the midrib, entire, acute. Flowers clustered in the upper leaf axils, peduncle 1.5 mm, pubescent. Bract c. 1.5 mm long, ovate-lanceolate. Pedicel 2-3 mm long, pubescent. Calyx 2 mm long, divided almost to the base, lobes ½ mm broad, narrow lanceolate, sparsely hairy outside. Corolla brownish, 4 mm long, campanulate, tube 1 mm long, lobes 3 mm long, 1.5 mm broad, ovate, acute, pilose within, left margin glabrous, tips twisted clockwise towards outside. Corona lobes tuberculate, broadly deltoid, subacute, equal or shorter than the column, convergent. Column very short, anther tips membranous, narrow deltoid, stigma conical, almost completely covered by anther tips. Follicle c. 6.5 x 1 cm.

Fl. Per.: August.

Holotype: C-7 Sargodha Dist.: Sakesar hills, in protected area, 15.8.72, M. Qaiser & A. Ghafoor 4524 (KUH).

Presently Vincetoxicum sakaserense Ali & S. Khatoon is known only from the type locality. It differs from Vincetoxicum canescens (Wind.) Dcne. in having acute-subacute corona lobes which are less than ½ of the corolla lobes. In Vincetoxicum canescens (Willd.) Dcne. the corona lobes are obtuse and more than half the length of corolla lobes.