Taxon Details: Clidemia allenii Almeda
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Narratives:
Family:
Melastomataceae (Magnoliophyta)
Melastomataceae (Magnoliophyta)
Scientific Name:
Clidemia allenii Almeda
Clidemia allenii Almeda
Primary Citation:
Proc. Calif. Acad. Sci. 55: 90. 2004
Proc. Calif. Acad. Sci. 55: 90. 2004
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, P.H. Allen 5265 (CAS!).
Description: Shrub 1.5-3 m tall, the terete upper branches, inflorescences, pedicels, hypanthia, and exterior calyx teeth moderately to copiously covered with smooth spreading hairs 1.5-3 mm long, sometimes underlain with a sparse to moderate understory of sessile stellate and stipitate-stellate hairs. Leaves of a pair ± equal to somewhat unequal in size; blades 5-7-plinerved, 6-23 cm long and 4-10 cm wide, elliptic varying to elliptic-ovate, apex acuminate to attenuate, base oblique and mostly rounded, margin essentially entire and ciliate varying to obscurely denticulate distally, moderately covered adaxially with spreading simple hairs 1-2.5 mm long to nearly glabrous, moderately to sparingly covered abaxially with spreading simple hairs 1-3 mm long on the median vein and innermost primaries (especially toward the base) and sparsely underlain with deciduous sessile stellate and stipitate-stellate hairs varying to glabrate. Inflorescence a pseudolateral modified dichasium 4-9 cm long, sometimes divaricately branched from the base; flowers 5-merous on pedicels 0.5-1 mm long, bracts and bracteoles subulate to narrowly triangular, 1-6 mm long, 0.25-0.5 mm wide, sparingly beset with smooth spreading hairs. Calyx lobes ± rounded-triangular, hyaline and typically obscured by the copious indument, 0.25 x 1.5 mm; calyx teeth linear to subulate, 2-4 mm long. Petals glabrous, pink or reportedly white, oblong to oblong-obovate, 4.5-5 mm long, 1-2 mm wide. Filaments 2-2.5 mm long; anthers 1.5-2 mm long, and 0.5 mm wide, yellow, linear-oblong, ± truncate at the apex with a ventrally inclined pore that is bent toward the dorsal side of the anther; connective conspicuously thickened dorsally and becoming dark when dry but neither prolonged nor modified. Ovary 5-locular, 2/3-inferior, apex elevated into a low ringlike collar with or without smooth hairs that surround the stylar scar; berry purple-black at maturity, 5 x 5 mm. Seeds angulate and somewhat muriculate to papillate on the convex face, 0.5 mm long.
Habitat and Distribution: Primary rain forests. Sea level to 350 m. COSTA RICA (Nepokroeff & Hammel 722 , CAS); PANAMA (de Nevers 7207, CAS); (Endemic.)
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, P.H. Allen 5265 (CAS!).
Description: Shrub 1.5-3 m tall, the terete upper branches, inflorescences, pedicels, hypanthia, and exterior calyx teeth moderately to copiously covered with smooth spreading hairs 1.5-3 mm long, sometimes underlain with a sparse to moderate understory of sessile stellate and stipitate-stellate hairs. Leaves of a pair ± equal to somewhat unequal in size; blades 5-7-plinerved, 6-23 cm long and 4-10 cm wide, elliptic varying to elliptic-ovate, apex acuminate to attenuate, base oblique and mostly rounded, margin essentially entire and ciliate varying to obscurely denticulate distally, moderately covered adaxially with spreading simple hairs 1-2.5 mm long to nearly glabrous, moderately to sparingly covered abaxially with spreading simple hairs 1-3 mm long on the median vein and innermost primaries (especially toward the base) and sparsely underlain with deciduous sessile stellate and stipitate-stellate hairs varying to glabrate. Inflorescence a pseudolateral modified dichasium 4-9 cm long, sometimes divaricately branched from the base; flowers 5-merous on pedicels 0.5-1 mm long, bracts and bracteoles subulate to narrowly triangular, 1-6 mm long, 0.25-0.5 mm wide, sparingly beset with smooth spreading hairs. Calyx lobes ± rounded-triangular, hyaline and typically obscured by the copious indument, 0.25 x 1.5 mm; calyx teeth linear to subulate, 2-4 mm long. Petals glabrous, pink or reportedly white, oblong to oblong-obovate, 4.5-5 mm long, 1-2 mm wide. Filaments 2-2.5 mm long; anthers 1.5-2 mm long, and 0.5 mm wide, yellow, linear-oblong, ± truncate at the apex with a ventrally inclined pore that is bent toward the dorsal side of the anther; connective conspicuously thickened dorsally and becoming dark when dry but neither prolonged nor modified. Ovary 5-locular, 2/3-inferior, apex elevated into a low ringlike collar with or without smooth hairs that surround the stylar scar; berry purple-black at maturity, 5 x 5 mm. Seeds angulate and somewhat muriculate to papillate on the convex face, 0.5 mm long.
Habitat and Distribution: Primary rain forests. Sea level to 350 m. COSTA RICA (Nepokroeff & Hammel 722 , CAS); PANAMA (de Nevers 7207, CAS); (Endemic.)
Notes: [Description based only on Mesoamerican specimens.]