Rubus pectinellus

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Rubus pectinellus

Description

Leaves reniform, 2-5.5 by 2-6 cm, shallowly 3(-5)-lobed, base deeply cordate, margin serrate, apex rounded, thinly herbaceous, nervation pedate with (l-)2 pairs of main side-nerves, venation widely reticulate, upper surface long-hairy between the veins, lower surface long-hairy and with needlelike prickles on nerves and veins. Stipules up to 8 by 10 mm, deeply digitately divided into up to 8 lobes. Flowers solitary, terminal on the laterals, rarely also 1-2 flowers in the axils of the upper (reduced) leaves, up to 3 cm stalked above uppermost true leaf. Sepals elliptic, 8-10 by 3-10 mm, growing to 12 by 13 mm in fruit, exposed margins pinnately 5-10-lobed, indumentum outside as hypanthium. Petals elliptic, 10-13 by 6-9 mm, white. Stamens 16-30, glabrous, filaments up to 5 mm, anthers 1-1.2 mm long. Fruits orange to red, mesocarp thin, juicy, stone 2.5-3 mm long, endocarp smooth at first, later rugulose.

Distribution

Asia-Temperate: Taiwan (Taiwan present), Asia-Tropical: Philippines (Philippines present), Japan present, Luzon present, Mindanao present, Mindoro present, SE China present
SE China, Taiwan, Japan; Malesia: Philippines (Luzon, Mindoro, Mindanao).

Notes

The description is based on Philippine specimens only.

Citation

Elmer 1908 – In: Leafl. Philipp. Bot. p 448
Merr. 1923 – In: Enum. Philipp. How. Pl. p 229