Diplycosia sumatrensis Merr.

Species

Angiosperms > Ericales > Ericaceae > Diplycosia

Characteristics

Shrub, c. 1.5 m. Branches pallid-corticate. Branchlets angular, tips densely, older parts +-laxly clothed with rufous, +-spreading, 2-3 mm long bristles. Leaves elliptic, sometimes more ovate, apex shortly and rather broadly acuminate, the terminal gland thick, obtuse, sharply protruding, base cuneate into the petiole, coriaceous, the very young ones laxly rufous-setulose on both faces, mature ones glabrous and shining above, dull and laxly set with subappressed bristle-like hairs beneath, glabrescent, finally blackish punctulate, margin somewhat revolute and crenulate towards the apex of the lamina, the teeth ending in early caducous bristles, (2.2-)3-5(-7) by (1.3-)1.8-3(-4) cm, 3-plinerved, midrib impressed above, raised beneath, 1-2 basal nerves high-ascending, parallel with the margin to the top of the lamina, slightly impressed above, mostly hardly visible beneath, other (3-)4-6 less visible nerves from the midrib, anastomosing with the marginal nerve, mostly very slightly impressed above, or rather inconspicuous as is the lax reticulation above; petiole grooved, thick, glabrescent, 3-6 mm. Flowers 3-6 per fascicle, sometimes only 2 or 1 in one or the other axil of the same specimen. Pedicels stoutish, rather densely clad with appressed, glandular, crisped, bristle-like hairs, (5-)8-11 mm. Bracteoles broad-ovate, subacute, keeled, very laxly muriculate dorsally, shortly glandular-fimbriate, c. 2 mm. Calyx constricted at the basal part, nearly stipitate, c. 5 mm, very laxly glandular-crisped-setulose, lobes narrow-ovate, acute, 4 mm. Corolla sub-cylindric-urceolate, (6-)7 mm, glabrous, white, scented, lobes reflexed, 1.5 mm. Filaments linear, glabrous, wavy, c. 3.5 mm; anthers oblong, cordate at the base, 3 mm including the slender tubules. Ovary laxly hairy on the top; style glabrous, c. 5.5 mm. Fruit violet or mostly blue, c. 5 mm ø.
Life form perennial
Growth form shrub
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
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Environment

In Vaccinium-forest and subalpine low vegetation or thickets, 1700-2870 m, also on lava soil, apparently common on Mt Singalang. Fl. fr. Jan., April-Aug.
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Hardiness (USDA) 9-12

Usage

Uses -
Edible -
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Cultivation

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Distribution

Diplycosia sumatrensis world distribution map, present in Indonesia and New Zealand

Identifiers

LSID urn:lsid:ipni.org:names:327974-1
WFO ID wfo-0000650865
COL ID 7VJ83
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Diplycosia patenticalyx Diplycosia sumatrensis