Miconia bicolor

(Mill.) Triana (1872)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Myrtales Family: Melastomataceae Genus: Miconia

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Description

Key Characters:

Growth Form: Shrubs or small trees up to 6 m tall.

Stems: Young branches rounded to subquadrate, sparsely to densely covered with appressed silvery scales.

Roots:

Leaves: Leaves simple. Opposite, decussate. Blades ovate–lanceolate, 7–10(–15) cm long, 2.3–3.5(–4.5) cm wide. Apex acuminate. Base obtuse to rounded. Upper surfaces essentially glabrous; lower surfaces densely covered with appressed silvery scales and with a cluster of coarse spreading hairs at junction of primary nerves. Margins entire. 3-veined. Petioles 14–26 mm long. Stipules absent.

Flowers: Flowers in simple cymes arranged in terminal panicles, inflorescences 9–14 cm long (incl. peduncle), pedicels 1–3 mm long in fruit, bracts and bracteoles greatly reduced and scale-like, early deciduous. Flowers bisexual (perfect). Hypanthium covered with appressed silvery scales. Calyx limb forming a shallow, spreading, subtruncate flange 0.5–1 mm long, persistent. Corolla of 5 petals, white and farinose, narrowly obovate, 6.5–8 mm long, 3.5–5 mm wide at apex. Stamens twice as many as petals, all similar; filaments 4.5–5.5 mm long; anthers yellow, 5–6 mm long, linear–subulate, with a dorsally inclined pore, connective not prolonged below anther sacs and without appendages. Ovary inferior, 3-celled; ovules numerous, placentation axile; style simple; stigma terminal.

Fruit: Berries bluish black; fleshy; subglobose; 6–8 mm long including the constricted neck just below the flaring calyx limb. Seeds cuneate; conspicuously angled; 1.5–2 mm long; endosperm absent.

Ploidy: 2n = 34

Habitat: Mesic to wet forest and disturbed areas such as along trails and roadsides.

Elevation Range:

Historical Distribution

Images

Uses and Culture

USES

  • Yes

Natural History

Statewide Status

Naturalized

Island Status

O'ahu Only found in cultivation
Hawai'i Naturalized

Dispersal Agents

Birds

Pollinators

Bibliography

Name Published In: Trans. Linn. Soc. London 28: 103 (1871 publ. 1872)

Other References

Wagner et al. 1990:913 (H [as Tetrazygia bicolor]); Staples & Herbst 2005:394 (KEY), 397 (DESCR); Judd et al. 2014:465 (Syn. T. bicolor = M. bicolor)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Miconia bicolor Honolulu; H.S.P.A. Experiment Station, Vineyard St. Nursery Preserved_Specimen Caum, E.L. Oahu BISH 1932-05-05
2 Miconia bicolor ahupuaa of Halepuaa Forest Reserve in the Puna District Preserved_Specimen ESP Field Crew Hawaii BISH 1979-10-11
3 Miconia bicolor Stainback Highway between Panaewa Zoo & Hawaii belt Highway Naturalized & common along highway. Preserved_Specimen Stemmermann, R.L. 6935 Hawaii BISH 1985-04-26
4 Miconia bicolor Lower Nanawale Forest Reserve, near the beginning part of Transect D Found in association with Cibotium, Aleurites, Rubus rosifolius, Psidium guajava. Preserved_Specimen Croft, L.K. 790037 Hawaii BISH 1979-02-23
5 Miconia bicolor Stainback Hwy., by turnoff form Volcano Hwy Occasional in disturbed areas at lower elevations. Preserved_Specimen Herbst, D.R. 4066 Hawaii BISH 1974-08-13
6 Miconia bicolor Junction of Stainback Hwy. & Hwy. 13 to Hilo Along disturbed roadside. Preserved_Specimen Wagner, W.L. 4848 Hawaii BISH 1983-07-26
7 Miconia bicolor Near junction of Stainback & Volcanoes Highway Occasional in disturbed areas at lower elevations. Preserved_Specimen Herbst, D.R. 4066 Hawaii BISH 1974-08-13
8 Miconia bicolor Stainback Highway, mauka of Hilo Planted or adventive in forest. Preserved_Specimen Baldwin, H.S. 24996 Hawaii BISH 1958-11-01
9 Miconia bicolor Puna Distr., W coner of junction between Mamaki St. and Rte. 11 Roadside disturbed vegetation with Melastoma, Psidium cattleianum. Preserved_Specimen Kraus, F. 1 Hawaii BISH 1999-09-09
10 Miconia bicolor 7 mi SW of State Route 11 on Mamaki Rd to Kulani Prison. Waiakea Forest Reserve Preserved_Specimen Miller, J.S. 7947 Hawaii BISH 1992-08-06