Rubus calycinus

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Rubus calycinus

Description

Leaves reniform, 3-6.5 by 3.5-7 cm, usually shallowly 3-5(-7)-lobecl, base deeply cordate, margin serrate, apex rounded, rather stiff and brittle when dry, nervation pedate with 2-3(-4) pairs of main side-nerves, vena ion reticulate, upper surface with short patent hairs on the nerves and with small prickles between the veins, lower surface with long patent hairs and with needle-shaped, 2.5 mm long prickles on nerves and veins below. Stipules ovate, 9-15 by 6-12 mm, base cordate to rounded, margin finely fimbriate. Flowers solitary, terminal on the laterals, up to 2 cm long stalked, rarely also one flower in the uppermost (reduced) leaf. Sepals elliptic to ovate, sometimes cordate, 11-16 by 5-13 mm, in fruit growing to 20 by 15 mm, exposed margins pin-nately lobed with up to 14 lobes, indumentum outside as hypanthium. Petals elliptic to ovate, 10-11 by 5-7 mm, white. Stamens 30-40, glabrous, filaments up to 6 mm, anthers 0.8-1 mm long. Fruits orange to red, mesocarp fleshy, only a thin layer when dry, stone 3-4 mm long, endocarp rugulose.

Distribution

Asia-Tropical: East Himalaya (Arunachal Pradesh present), E Java present, Himalaya region present, N Burma present, NE India present, Nepal present, S China present
Himalaya region from Nepal to Arunachal Pradesh, NE India, N Burma, S China; Malesia: only E Java.

Notes

The differences between plants from the Continent and from Java are very slight, see Zandee & Kalkman, l. c. The description above is based on plants from Java.

Citation

Backer & Bakh. f. 1964 – In: Fl. Java. p 515
Steenis 1972: Mount. FL Java. pl. 46-1