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Pakistan | Family List | Apocynaceae | Alstonia

2. Alstonia scholaris (Linn.) R.Br. in Mem. Wern. Soc. 1:76. 1811. DC., Prodr. l.c. 408; Brandis, For. Fl. 325. 1874; Hook. f., l.c. 642; Cooke, l.c.; Talbot, l.c.; Parker, For. Fl. Punj. Haz. & Delhi, ed. 3.334. 1956; Bailey, l.c.

S. NAZIMUDDIN AND M. QAISER

  • Echites scholaris Linn.

    A tall evergreen tree upto 20 m or more; bark grey rough, lenticellate branches glabrous. Leaves (4-)5-7 (-10) whorled, coriaceous. glabrous, and shining, 9-20 x 2-5 cm, oblong-lanceolate or obvate, obtuse or shortly acuminate with 25-60 pairs of lateral nerves; margin entire; petiole 0.5-1 cm long, ending in a thick hooked gland on upper side. Inflorescence umbellately branched, many flowered, of capitate cymes, pubescent or tomentose; peduncle 2-5 cm long; pedicel 2-5 mm long, bracts oblong or lanceolate, acute, pubescent. Flowers greenish white 6-12 mm long. Calyx c. 2 mm long, pubescent, persistent; lobes oblong-ovate obtuse. Corolla tube cylindric, c. 6 mm long, lobes ovate, obtuse, 3-5 mm long. Disc absent. Follicles 30-60 cm long and 3-5 mm broad, pendulous.

    Fl. Per.: December-May.

    Type: Described from India. Hb. LINN 302/2.

    Distribution: India to Indonesia, tropical Australia and Africa. Cultivated in Pakistan as an ornamental.

    The inner bark is of medicinal value and is used as a source of anti-malerial drug.


     

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