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Pakistan | Family List | Boraginaceae | Heliotropium

8. Heliotropium baluchistanicum Kazmi in J. Arn. Arb. 51 (2):172. 1970.


Perennial up to 25 cm tall. Branches erect-ascending, dense pubescent-hallo with brownish bras; hairs 1-1.2 mm long. Leaves 12-25 x 10-17 mm, ovate to ovate-oblong; hairy on both surfaces, nerves impressed on upper surface, base truncate to cuneate; petiole up to 12 mm long, hairy. Inflorescence Calyx 5-partite, dense hairy; lobes ± 4 mm long, linear. Corolla tube 5-5.5 mm long, narrow, tometose on the outside and with 2 zones of hairs on the inner separated by a glabrous zone, ± 1.2 mm broad, lobes c. 0.8 mm long obtuse. Anthers c. 1 mm long, oblong, apiculate, attached c. 1.7 mm above corolla tube base. Stigma 0.5-0.6 mm long, compressed conical, glabrous. Style slightly shorter. 2.2 mm long, ovoid, glabrous, light brown.

Fl. Per.: May.

Type: Baluchistan: Mir Ali Khel, 3600', Duthie 18922 (K, isotype RAW).

Distribution: Endemic.

The species is barely separable from Heliotropium biannulatum, from in a glabrous area present between two zones of hairs on the inside of the corolla tube. In the isotype the corolla lobes are more than 0.5 mm long. Kazmi (l.c. in nota) relates the species to the afghan Heliotropium dicriphorum Rech. f. & Riedl, but I do not have any material for comparison.


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