Prunus C

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Prunus C

Description

Small trees. Leaves lanceolate, 8-10.5 by 2.5-3 cm, base acute, margin finely serrate, apex gradually narrowed, herbaceous, with c. 15 pairs of nerves, between two primary nerves often with an ± equally strong and parallel nerve, venation not conspicuous, upper surface glabrous, lower surface with hairs on and near midrib, doma-tia absent, basal glands usually 2, on the top of the petiole. Stipules narrowly triangular, 9-10 by 1-1.5 mm, free, on the twig, both sides hairy, margin dentate-glandular. Sepals 5, triangular with rounded apex, c. 1.5 by 1.5-2 mm, margin with some glandular teeth, (almost) glabrous outside. Petals 5, broadly obovate, 3-4 by 3.5-4.5 mm, glabrous, white. Stamens c. 20, filaments up to 3 mm, glabrous, anthers 0.7-1 mm long. Ovary glabrous, style up to 1.5 mm long. Fruits not seen.

Distribution

Asia-Tropical: Philippines (Philippines present), Luzon present, Mt Pulog present
One specimen seen from Mt Pulog, Luzon, Philippines.

Notes

Celestinó c.s. PNH 4337 is the first and up till now the only collection of a Malesian Prunus belonging to the subgenus Padus which is characterized by the leaves on the basis of the raceme. It was collected in 1948 on a well-visited mountain and it can be doubted whether it came from a wild tree. Identification is difficult since too many badly demarcated species have been described in this subgenus. Also because of the absence of fruits it seems better to keep it under the Insufficiently known species than to create another synonym which later will have to be reduced.