Taxon Details: Miconia calocoma Almeda
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Family:
Melastomataceae (Magnoliophyta)
Melastomataceae (Magnoliophyta)
Scientific Name:
Miconia calocoma Almeda
Miconia calocoma Almeda
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: Costa Rica, Folsom 9776 (CAS!).
Description: Shrubs or small trees 3-5 m tall, the distal branches, petioles, and inflorescences densely covered with a mixture of rusty brown sessile-stellate and stipitate-stellate hairs. Leaves 5(-7)-plinerved, elliptic to elliptic-ovate, (4.2-)8.5-19.5 X (2.3-)5-8.5 cm, adaxially sparingly stellate to glabrous, abaxially copiously stellate on the elevated primary veins with a sparser hair cover on the transverse secondary and higher order veins, apex acuminate, base typically obtuse to rounded but varying to oblique and then decurrent, the margin undulate to undulate-dentate; petioles 4-10 mm long. Panicle 2-5 mm long with ultimate branchlets terminating in congested glomerules; the 4-merous flowers on obscure pedicels 0.5 mm long, the persistent linear-oblong bracteoles 0.5-1.5 mm long. Calyx closed in bud and crowned by an apiculum 0.25 mm long but rupturing at anthesis into 2-4 persistent hyaline lobes mostly 1 mm long, the linear-oblong exterior teeth 1-1.5 mm long, widely spreading to recurved on fruiting hypanthia. Petals glabrous, obovate to oblong-obovate, 3-4 X 1.5-2.5 mm. Stamens isomorphic; anthers linear-oblong and laterally compressed, 1-1.5 mm long, yellow, the terminal pore somewhat ventrally inclined; connective neither prolonged nor appendaged. Style glabrous, 5-10 mm long, stigma truncate to capitellate; ovary 4-locular, ca. 3/4 inferior, apex glabrous; berry 6-8 X 6-8 mm, blue-black to purple at maturity. Seeds obovoid to pyriform, densely tuberculate, 1 mm long.
Habitat and Distribution: Local and uncommon, rain forest. 20-200 m. COSTA RICA (Stevens 23730, CAS). (Endemic).
Taxonomy and Systematics: This species is known only from the Caribbean lowlands of SE Costa Rica in the Valle de Estrella and in northeastern Costa Rica in an area extending from Puerto Viejo northeast to Cerro Coronel.
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: Costa Rica, Folsom 9776 (CAS!).
Description: Shrubs or small trees 3-5 m tall, the distal branches, petioles, and inflorescences densely covered with a mixture of rusty brown sessile-stellate and stipitate-stellate hairs. Leaves 5(-7)-plinerved, elliptic to elliptic-ovate, (4.2-)8.5-19.5 X (2.3-)5-8.5 cm, adaxially sparingly stellate to glabrous, abaxially copiously stellate on the elevated primary veins with a sparser hair cover on the transverse secondary and higher order veins, apex acuminate, base typically obtuse to rounded but varying to oblique and then decurrent, the margin undulate to undulate-dentate; petioles 4-10 mm long. Panicle 2-5 mm long with ultimate branchlets terminating in congested glomerules; the 4-merous flowers on obscure pedicels 0.5 mm long, the persistent linear-oblong bracteoles 0.5-1.5 mm long. Calyx closed in bud and crowned by an apiculum 0.25 mm long but rupturing at anthesis into 2-4 persistent hyaline lobes mostly 1 mm long, the linear-oblong exterior teeth 1-1.5 mm long, widely spreading to recurved on fruiting hypanthia. Petals glabrous, obovate to oblong-obovate, 3-4 X 1.5-2.5 mm. Stamens isomorphic; anthers linear-oblong and laterally compressed, 1-1.5 mm long, yellow, the terminal pore somewhat ventrally inclined; connective neither prolonged nor appendaged. Style glabrous, 5-10 mm long, stigma truncate to capitellate; ovary 4-locular, ca. 3/4 inferior, apex glabrous; berry 6-8 X 6-8 mm, blue-black to purple at maturity. Seeds obovoid to pyriform, densely tuberculate, 1 mm long.
Habitat and Distribution: Local and uncommon, rain forest. 20-200 m. COSTA RICA (Stevens 23730, CAS). (Endemic).
Taxonomy and Systematics: This species is known only from the Caribbean lowlands of SE Costa Rica in the Valle de Estrella and in northeastern Costa Rica in an area extending from Puerto Viejo northeast to Cerro Coronel.
Notes: [Description based only on Mesoamerican specimens.]