Taxon Details: Clidemia collina Gleason
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Family:
Melastomataceae (Magnoliophyta)
Melastomataceae (Magnoliophyta)
Scientific Name:
Clidemia collina Gleason
Clidemia collina Gleason
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: TYPE: Panama, Allen 1820 (MO!).
Description: Shrub 0.5-2 m tall, the terete upper internodes copiously setose with spreading somewhat reflexed smooth hairs 4-8 mm long, the understory indument lacking or sparsely beset with glandular hairs that do not obscure the actual surface. Leaves of a pair ± equal to unequal in size, consistently bearing elongate paired formicaria 2.5-8 cm long occupying the blade base and at least half or more of the petiole below the blade; petioles (including formicarial portions) 1.5-6 cm long, beset with spreading smooth hairs 4-8 mm long; blades chartaceous and brittle when dry, 9.5-21 x 6.5-13 cm, ovate to ovate-elliptic, apex short-acuminate, base broadly rounded to subcordate, margin cilate-denticulate, 7-11-plinerved, the adaxial surface copiously setose with spreading smooth hairs 1.5-7 mm long, the abaxial surface also beset with spreading smooth hairs 2-3.5 mm long. Inflorescence a pseudolateral congested dichasium 1.5-2.5 cm long branched from the base but the axes obscured by the copious setose indument of spreading smooth hairs 4-9 mm long. Flowers 5-merous on minutely glandular pedicels 1-2.5 mm long, the persistent subulate bracteoles 2-3 x 0.4-0.5 (including the apical hair). Hypanthia (at anthesis) narrowly campanulate, sparsely setose with spreading hairs like the inflorescence axis, the understory indument lacking or very sparingly beset with minute deciduous glands. Calyx lobes 0.75-1 x 1-1.25 mm, ovate to oblong-ovate or rounded-triangular, exterior calyx teeth subulate, 4-5 mm long (including the apical hair). Petals glabrous, translucent white, oblong to oblong-obovate, 3-5 x 1-2.5 mm. Filaments 1.5-2.5 mm long; anthers 2-2.5 mm long, yellow with a dorsally inclined apical pore; connective thickened dorsally and prolonged ca. 0.1 mm below the anther sacs but unappendaged. Ovary 5-locular, 2/3-inferior, apex elevated into a glabrous shallowly crateriform dome. Style glabrous, 5-7 mm long; stigma capitellate. Berry blue at maturity, 6-7 x 5-7 mm when dry. Seeds 0.5 mm long, the testa densely tuberculate.
Habitat and Distribution: Locally common in shade of low cloud forests. 500-1000 m. PANAMA (Hammel 7230, CAS). (Endemic).
Taxonomy and Systematics: Clidemia collina resembles C. myrmecina in having tightly congested inflorescences and reflexed cauline hairs. In C. myrmecina the leaf blades have all primary veins diverging from one another at the base (vs. plinerved) and the formicaria are largely petiolar (vs. both petiolar and laminar in C. collina). Clidemia lanuginosa is also very much like C. collina but its formicaria are exclusively laminar, the upper internodes have a dense lanuginose indument underlying the spreading smooth hairs, and the inflorescence is pedunculate or openly branched with the main axes not obscured by the dense indument as they are in C. collina.
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: TYPE: Panama, Allen 1820 (MO!).
Description: Shrub 0.5-2 m tall, the terete upper internodes copiously setose with spreading somewhat reflexed smooth hairs 4-8 mm long, the understory indument lacking or sparsely beset with glandular hairs that do not obscure the actual surface. Leaves of a pair ± equal to unequal in size, consistently bearing elongate paired formicaria 2.5-8 cm long occupying the blade base and at least half or more of the petiole below the blade; petioles (including formicarial portions) 1.5-6 cm long, beset with spreading smooth hairs 4-8 mm long; blades chartaceous and brittle when dry, 9.5-21 x 6.5-13 cm, ovate to ovate-elliptic, apex short-acuminate, base broadly rounded to subcordate, margin cilate-denticulate, 7-11-plinerved, the adaxial surface copiously setose with spreading smooth hairs 1.5-7 mm long, the abaxial surface also beset with spreading smooth hairs 2-3.5 mm long. Inflorescence a pseudolateral congested dichasium 1.5-2.5 cm long branched from the base but the axes obscured by the copious setose indument of spreading smooth hairs 4-9 mm long. Flowers 5-merous on minutely glandular pedicels 1-2.5 mm long, the persistent subulate bracteoles 2-3 x 0.4-0.5 (including the apical hair). Hypanthia (at anthesis) narrowly campanulate, sparsely setose with spreading hairs like the inflorescence axis, the understory indument lacking or very sparingly beset with minute deciduous glands. Calyx lobes 0.75-1 x 1-1.25 mm, ovate to oblong-ovate or rounded-triangular, exterior calyx teeth subulate, 4-5 mm long (including the apical hair). Petals glabrous, translucent white, oblong to oblong-obovate, 3-5 x 1-2.5 mm. Filaments 1.5-2.5 mm long; anthers 2-2.5 mm long, yellow with a dorsally inclined apical pore; connective thickened dorsally and prolonged ca. 0.1 mm below the anther sacs but unappendaged. Ovary 5-locular, 2/3-inferior, apex elevated into a glabrous shallowly crateriform dome. Style glabrous, 5-7 mm long; stigma capitellate. Berry blue at maturity, 6-7 x 5-7 mm when dry. Seeds 0.5 mm long, the testa densely tuberculate.
Habitat and Distribution: Locally common in shade of low cloud forests. 500-1000 m. PANAMA (Hammel 7230, CAS). (Endemic).
Taxonomy and Systematics: Clidemia collina resembles C. myrmecina in having tightly congested inflorescences and reflexed cauline hairs. In C. myrmecina the leaf blades have all primary veins diverging from one another at the base (vs. plinerved) and the formicaria are largely petiolar (vs. both petiolar and laminar in C. collina). Clidemia lanuginosa is also very much like C. collina but its formicaria are exclusively laminar, the upper internodes have a dense lanuginose indument underlying the spreading smooth hairs, and the inflorescence is pedunculate or openly branched with the main axes not obscured by the dense indument as they are in C. collina.
Notes: [Description based only on Mesoamerican specimens.]