Taxon Details: Miconia urticoides Triana
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Narratives:
Family:
Melastomataceae (Magnoliophyta)
Melastomataceae (Magnoliophyta)
Scientific Name:
Miconia urticoides Triana
Miconia urticoides Triana
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Description Author and Date: Frank Almeda, based on Almeda, F. (2009). Melastomataceae. In: G. Davidse, M. Sousa-Sânchez, S. Knapp, & F. Chiang (eds.), Flora Mesoamericana: Cucurbitaceae a Polemoniaceae. 4(1): 164-338.
Type: Holotype: Colombia, Triana 6258.64 (BM).
Description: Viny hemiepiphytic shrub with branches dangling from host tree. Uppermost terete cauline internodes, petioles, both leaf surfaces, inflorescence branches, pedicels and hypanthia (at anthesis) moderately covered with sessile and short-stalked stellate hairs. Leaves of a pair equal to somewhat unequal in size; the blade 7-nerved or if 7-plinerved then the innermost pair of primary veins diverging from the midvein 1-2 mm above the blade base, the blade ovate varying to cordate or subcordate, 2.8-7.5 x 2-5.8 cm, the apex obtuse to rounded or rarely acute, the base cordate to broadly rounded, the margin bluntly dentate to crenate, the abaxial surface moderately covered with stalked-stellate hairs that are mostly confined to the primary and higher order veins; petioles 0.6-2.7 cm long. Inflorescence an openly branched pendent panicle 8-15 cm long; flowers 5-merous on pedicels 0.5-0.75 mm long (at anthesis) lengthening to 2 mm in fruit; the persistent bracteoles linear-oblong to narrowly triangular, 0.5-1 x 0.1-0.25 mm. Hypanthium essentially glabrous in fruit. Calyx tube 0.25 mm long, the calyx lobes 0.5 x 1 mm, ovate-oblong to semicircular and sparsely fringed with sessile stellate hairs, the exterior calyx teeth bluntly triangular, 0.3-0.4 mm long and not projecting beyond the calyx lobes. Petals white, glabrous, reflexed, narrowly obovate to narrowly triangular, 1-1.5 x 0.5-1 mm. Anthers isomorphic, yellow, obovoid-truncate, ca. 1.5 mm long with 2 dorsally inclined apical pores; connective thickened dorsally and prolonged dorso-basally into a deflexed caudiform appendage 0.25-0.3 mm long. Style glabrous, 3-3.5 mm long; stigma somewhat clavate to barely expanded; ovary 3-locular, 2/3-inferior, the apex elevated into a low (0.25 mm) glabrous lobulate collar. Berry purple-black at maturity, 4-6 x 4-6 mm when dry. Seeds narrowly ovoid to nearly lacrimiform, the testa muriculate, 0.75 mm long.
Habitat and Distribution: Uncommon in rain forest and cloud forest. 1000-1500 (-1900). Colombia. PANAMA (Aranda et al. 944, CAS).
Taxonomy and Systematics: Miconia urticoides is known in the flora region only from the Serranía de Pirre in southern Darién, Panama. It is one of only two Mesoamerican members of the genus that are viny hemiepiphytes. The other species, M. arboricola Almeda, is readily distinguished by its entire leaf blade, petals with irregularly retuse apices, unappendaged anther connectives, capitate stigma (vs. barely expanded to somewhat clavate), and paniculiform inflorescence with ultimate branches terminating in congested glomerules.
Notes: [Description based only on Mesoamerican specimens.]
Description Author and Date: Frank Almeda, based on Almeda, F. (2009). Melastomataceae. In: G. Davidse, M. Sousa-Sânchez, S. Knapp, & F. Chiang (eds.), Flora Mesoamericana: Cucurbitaceae a Polemoniaceae. 4(1): 164-338.
Type: Holotype: Colombia, Triana 6258.64 (BM).
Description: Viny hemiepiphytic shrub with branches dangling from host tree. Uppermost terete cauline internodes, petioles, both leaf surfaces, inflorescence branches, pedicels and hypanthia (at anthesis) moderately covered with sessile and short-stalked stellate hairs. Leaves of a pair equal to somewhat unequal in size; the blade 7-nerved or if 7-plinerved then the innermost pair of primary veins diverging from the midvein 1-2 mm above the blade base, the blade ovate varying to cordate or subcordate, 2.8-7.5 x 2-5.8 cm, the apex obtuse to rounded or rarely acute, the base cordate to broadly rounded, the margin bluntly dentate to crenate, the abaxial surface moderately covered with stalked-stellate hairs that are mostly confined to the primary and higher order veins; petioles 0.6-2.7 cm long. Inflorescence an openly branched pendent panicle 8-15 cm long; flowers 5-merous on pedicels 0.5-0.75 mm long (at anthesis) lengthening to 2 mm in fruit; the persistent bracteoles linear-oblong to narrowly triangular, 0.5-1 x 0.1-0.25 mm. Hypanthium essentially glabrous in fruit. Calyx tube 0.25 mm long, the calyx lobes 0.5 x 1 mm, ovate-oblong to semicircular and sparsely fringed with sessile stellate hairs, the exterior calyx teeth bluntly triangular, 0.3-0.4 mm long and not projecting beyond the calyx lobes. Petals white, glabrous, reflexed, narrowly obovate to narrowly triangular, 1-1.5 x 0.5-1 mm. Anthers isomorphic, yellow, obovoid-truncate, ca. 1.5 mm long with 2 dorsally inclined apical pores; connective thickened dorsally and prolonged dorso-basally into a deflexed caudiform appendage 0.25-0.3 mm long. Style glabrous, 3-3.5 mm long; stigma somewhat clavate to barely expanded; ovary 3-locular, 2/3-inferior, the apex elevated into a low (0.25 mm) glabrous lobulate collar. Berry purple-black at maturity, 4-6 x 4-6 mm when dry. Seeds narrowly ovoid to nearly lacrimiform, the testa muriculate, 0.75 mm long.
Habitat and Distribution: Uncommon in rain forest and cloud forest. 1000-1500 (-1900). Colombia. PANAMA (Aranda et al. 944, CAS).
Taxonomy and Systematics: Miconia urticoides is known in the flora region only from the Serranía de Pirre in southern Darién, Panama. It is one of only two Mesoamerican members of the genus that are viny hemiepiphytes. The other species, M. arboricola Almeda, is readily distinguished by its entire leaf blade, petals with irregularly retuse apices, unappendaged anther connectives, capitate stigma (vs. barely expanded to somewhat clavate), and paniculiform inflorescence with ultimate branches terminating in congested glomerules.
Notes: [Description based only on Mesoamerican specimens.]