Taxon Details: Lateropora tubulifera Wilbur & Luteyn
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Narratives:
Family:
Ericaceae (Magnoliophyta)
Ericaceae (Magnoliophyta)
Scientific Name:
Lateropora tubulifera Wilbur & Luteyn
Lateropora tubulifera Wilbur & Luteyn
Primary Citation:
Ann. Missouri Bot. Gard. 68: 162. 1981
Ann. Missouri Bot. Gard. 68: 162. 1981
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Description: Shrub 1.5 m tall; immature branchlets moderately thick, 2-2.5 mm in diameter, glabrous, dark purplish, striate to irregularly angulate, the mature branches grayish to brownish. Leaves coriaceous, elliptic, 2.5-3.8 x 1.2-1.8 cm, apically acute to obtuse and acutely tapering to the base, entire with an elevated or slightly thickened margin, glabrous or glabrate beneath; indistinctly pinnately veined; petioles glabrous, 3-4 mm long and 2-2.5 mm wide, flattened. Inflorescence axillary, corymbosely racemose, (1-)3-5-flowered, 2-3 cm long; rachis 1-1.5 cm long, glabrous, with 3-4 peduncular bracts, broadly oblong to orbicular, basal, short-ciliate, 1-3 x ca. 1.5-2.2 mm; floral bracts ovate to oblong, 1.5-2.5 x 1.5-2 mm, glabrous except for short cilia, slightly keeled and short-apiculate, irregularly narrowly hyaline margined; pedicels slightly clavate, 10-18 mm long, medially ca. 1 mm in diameter, glabrous except for an inconspicuous fringe of glandular trichomes 0.2-0.4 mm long borne distally just beneath the sharply delimited disarticulation groove; bracteoles subopposite to alternate, ovate to oblong, 2-2.2 x 1.5-1.8 mm, ciliate, irregularly hyaline margined, appressed, located in the lower proximal third. Flowers with the hypanthium campanulate, clearly 5-angulate in the lower half with 5 rounded ridges ascending between the calyx lobes, 3-3.5 mm long and 3-3.2 mm in diameter at anthesis, glabrous, disarticulating from the pedicel by a clearly marked groove; limb somewhat flaring or at least wider than the hypanthium, glabrous, 0.7-1 mm long; lobes 5, erect, deltoid, acute, 1-1.5 x 1.8-2.2 mm, glabrous; corolla urceolate, 3.5-5 mm long, "pink," externally glabrous, internally densely pilose to tangled villous in the distal half with white trichomes 0.6-1 mm long, the lobes 5, triangular, acute, 1-1.2 mm long, glabrous externally and densely tangled villous internally; stamens 10; filaments flattened, 2-2.2 mm long, basally less than 0.5 mm wide, distally attached for about 1/3 the length from just above the strongly incurved base to the thecae, densely pilose distally with the white trichomes 0.5-1.2 mm long; anthers conspicuously granular, 2.5-3 mm long including the strongly incurved base of 1/4-1/3 the length of the thecae; tubules smooth, ca. 0.8 mm long, dehiscing by a slit extending from the apex of the tubule to the pronounced basal curve of the theca.
Distribution: Endemic to Panama and known only from the type collection.
Type: Panama. Chiriquí: Cerro Hornito, in cloud forest, 1830 m, 8 May 1978, Hammel 3069 (holotype, MO).
Description: Shrub 1.5 m tall; immature branchlets moderately thick, 2-2.5 mm in diameter, glabrous, dark purplish, striate to irregularly angulate, the mature branches grayish to brownish. Leaves coriaceous, elliptic, 2.5-3.8 x 1.2-1.8 cm, apically acute to obtuse and acutely tapering to the base, entire with an elevated or slightly thickened margin, glabrous or glabrate beneath; indistinctly pinnately veined; petioles glabrous, 3-4 mm long and 2-2.5 mm wide, flattened. Inflorescence axillary, corymbosely racemose, (1-)3-5-flowered, 2-3 cm long; rachis 1-1.5 cm long, glabrous, with 3-4 peduncular bracts, broadly oblong to orbicular, basal, short-ciliate, 1-3 x ca. 1.5-2.2 mm; floral bracts ovate to oblong, 1.5-2.5 x 1.5-2 mm, glabrous except for short cilia, slightly keeled and short-apiculate, irregularly narrowly hyaline margined; pedicels slightly clavate, 10-18 mm long, medially ca. 1 mm in diameter, glabrous except for an inconspicuous fringe of glandular trichomes 0.2-0.4 mm long borne distally just beneath the sharply delimited disarticulation groove; bracteoles subopposite to alternate, ovate to oblong, 2-2.2 x 1.5-1.8 mm, ciliate, irregularly hyaline margined, appressed, located in the lower proximal third. Flowers with the hypanthium campanulate, clearly 5-angulate in the lower half with 5 rounded ridges ascending between the calyx lobes, 3-3.5 mm long and 3-3.2 mm in diameter at anthesis, glabrous, disarticulating from the pedicel by a clearly marked groove; limb somewhat flaring or at least wider than the hypanthium, glabrous, 0.7-1 mm long; lobes 5, erect, deltoid, acute, 1-1.5 x 1.8-2.2 mm, glabrous; corolla urceolate, 3.5-5 mm long, "pink," externally glabrous, internally densely pilose to tangled villous in the distal half with white trichomes 0.6-1 mm long, the lobes 5, triangular, acute, 1-1.2 mm long, glabrous externally and densely tangled villous internally; stamens 10; filaments flattened, 2-2.2 mm long, basally less than 0.5 mm wide, distally attached for about 1/3 the length from just above the strongly incurved base to the thecae, densely pilose distally with the white trichomes 0.5-1.2 mm long; anthers conspicuously granular, 2.5-3 mm long including the strongly incurved base of 1/4-1/3 the length of the thecae; tubules smooth, ca. 0.8 mm long, dehiscing by a slit extending from the apex of the tubule to the pronounced basal curve of the theca.
Distribution: Endemic to Panama and known only from the type collection.
Type: Panama. Chiriquí: Cerro Hornito, in cloud forest, 1830 m, 8 May 1978, Hammel 3069 (holotype, MO).