Taxon Details: Miconia tixixensis Standl. & Steyerm.
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Narratives:
Family:
Melastomataceae (Magnoliophyta)
Melastomataceae (Magnoliophyta)
Scientific Name:
Miconia tixixensis Standl. & Steyerm.
Miconia tixixensis Standl. & Steyerm.
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: Guatemala, Steyermark 31585 (F!).
Description: Shrub 1.5-2.5 m tall, the rounded-quadrate uppermost cauline internodes, petioles, abaxial leaf surfaces, inflorescence branches, and calyx teeth copiously covered with spreading stalked-stellate hairs. Leaves of a pair subequal in size, the blades 3-5-plinerved with the innermost pair of primary veins diverging from the midvein in opposite or subopposite fashion 1-1.5 cm above the blade base, the blades elliptic to ovate-elliptic, 4-12.7 x 1.6-5.2 cm, the apex long attenuate-acuminate, the base acute to obtuse, the margin essentially entire, the adaxial surface of very young leaves copiously covered with deciduous talked-stellate hairs that lose a portion of the stalk and all of the stellate arms resulting in a largely scabrous texture at maturity; petioles 1-2.3 cm long. Inflorescence a few-flowered panicle with ultimate branches terminating in triads; flowers 5-merous, subsessile; the persistent bracteoles oblong-subulate, 2-2.5 x 0.25 mm. Hypanthial indument nearly concealing the actual surface. Calyx tube 0.25-0.5 mm long, the calyx lobes oblong to bluntly triangular-oblong, 2.5-3 x 1-1.5 mm; the exterior calyx teeth subulate, 3 mm long, and conspicuously exceeding the calyx tubes in length. Petals white (?), glabrous, narrowly obovate, 5-6 x 2 mm. Anthers isomorphic, 2.5 mm long, yellow (?), oblong with a ventrally inclined pore, connective neither prolonged nor appendaged. Style glandular-puberulent, 7 mm long; stigma punctiform; ovary 5-locular, 2/3 inferior, the apex elevated into a low dome-like glandular-puberulent collar 0.5 mm high. Berry 6 x 5 mm when dry. Seeds triangular-ovoid, the testa vaguely rugulate, 0.75 mm long.
Habitat and Distribution: Rare and local in cloud forest. 1500 m. GUATEMALA (Lundell & Contreras 19719, 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: Guatemala, Steyermark 31585 (F!).
Description: Shrub 1.5-2.5 m tall, the rounded-quadrate uppermost cauline internodes, petioles, abaxial leaf surfaces, inflorescence branches, and calyx teeth copiously covered with spreading stalked-stellate hairs. Leaves of a pair subequal in size, the blades 3-5-plinerved with the innermost pair of primary veins diverging from the midvein in opposite or subopposite fashion 1-1.5 cm above the blade base, the blades elliptic to ovate-elliptic, 4-12.7 x 1.6-5.2 cm, the apex long attenuate-acuminate, the base acute to obtuse, the margin essentially entire, the adaxial surface of very young leaves copiously covered with deciduous talked-stellate hairs that lose a portion of the stalk and all of the stellate arms resulting in a largely scabrous texture at maturity; petioles 1-2.3 cm long. Inflorescence a few-flowered panicle with ultimate branches terminating in triads; flowers 5-merous, subsessile; the persistent bracteoles oblong-subulate, 2-2.5 x 0.25 mm. Hypanthial indument nearly concealing the actual surface. Calyx tube 0.25-0.5 mm long, the calyx lobes oblong to bluntly triangular-oblong, 2.5-3 x 1-1.5 mm; the exterior calyx teeth subulate, 3 mm long, and conspicuously exceeding the calyx tubes in length. Petals white (?), glabrous, narrowly obovate, 5-6 x 2 mm. Anthers isomorphic, 2.5 mm long, yellow (?), oblong with a ventrally inclined pore, connective neither prolonged nor appendaged. Style glandular-puberulent, 7 mm long; stigma punctiform; ovary 5-locular, 2/3 inferior, the apex elevated into a low dome-like glandular-puberulent collar 0.5 mm high. Berry 6 x 5 mm when dry. Seeds triangular-ovoid, the testa vaguely rugulate, 0.75 mm long.
Habitat and Distribution: Rare and local in cloud forest. 1500 m. GUATEMALA (Lundell & Contreras 19719, CAS). (Endemic)
Notes: [Description based only on Mesoamerican specimens.]