Monographs Details:
Authority:
Luteyn, James L., et al. 1995. Ericaceae, Part II. The Superior-Ovaried Genera (Monotropoideae, Pyroloideae, Rhododendroideae, and Vaccinioideae P.P.). Fl. Neotrop. Monogr. 66: 560. (Published by NYBG Press)
Luteyn, James L., et al. 1995. Ericaceae, Part II. The Superior-Ovaried Genera (Monotropoideae, Pyroloideae, Rhododendroideae, and Vaccinioideae P.P.). Fl. Neotrop. Monogr. 66: 560. (Published by NYBG Press)
Family:
Ericaceae
Ericaceae
Synonyms:
Gaylussacia subcordata Dunal, Leucothoe subcordata (Dunal) Sleumer
Gaylussacia subcordata Dunal, Leucothoe subcordata (Dunal) Sleumer
Description:
Species Description - Shrub; twigs sparsely to very sparsely pubescent, with ± nonchambered pith; buds to ca. 1.8 mm long, leaves re volute. Leaves coriaceous, ovate to elliptic, 1-3.1 × 0.6-1.3 cm, base rounded to slightly cordate, apex acute- to rounded-mucronate, margin entire (slightly sinuous), plane to slightly re volute, both surfaces glabrous to sparsely pubescent on midvein, abaxially often with few to several inconspicuous glandular dots along midvein; petiole 1-2.5 mm long. Inflorescences axillary racemes to 5-10 cm long; rachis sparsely to moderately pubescent; pedicels 3.5-7 mm long, sparsely to moderately pubescent; bracteoles 2, at or near base to within lower 1/3 of pedicel, narrowly triangular, to ca. 1.1 mm long; floral bracts to 1.5 mm long. Flowers with triangular calyx lobes, with acuminate apices, 1-1.5 × 0.9-1.5 mm, abaxial surface glabrous to very sparsely pubescent, especially near base; corolla cylindrical to urceolate-cylindrical, white, 6-7.5 × 3-3.5 mm, glabrous; filaments ca. 3.5 mm long; anthers ca. 1.3 mm long; ovary glabrous to very sparsely pubescent near apex. Capsules subglobose to short-ovoid, 4-5 × 5.5-6.5 mm, placentae subapical; seeds not seen.
Species Description - Shrub; twigs sparsely to very sparsely pubescent, with ± nonchambered pith; buds to ca. 1.8 mm long, leaves re volute. Leaves coriaceous, ovate to elliptic, 1-3.1 × 0.6-1.3 cm, base rounded to slightly cordate, apex acute- to rounded-mucronate, margin entire (slightly sinuous), plane to slightly re volute, both surfaces glabrous to sparsely pubescent on midvein, abaxially often with few to several inconspicuous glandular dots along midvein; petiole 1-2.5 mm long. Inflorescences axillary racemes to 5-10 cm long; rachis sparsely to moderately pubescent; pedicels 3.5-7 mm long, sparsely to moderately pubescent; bracteoles 2, at or near base to within lower 1/3 of pedicel, narrowly triangular, to ca. 1.1 mm long; floral bracts to 1.5 mm long. Flowers with triangular calyx lobes, with acuminate apices, 1-1.5 × 0.9-1.5 mm, abaxial surface glabrous to very sparsely pubescent, especially near base; corolla cylindrical to urceolate-cylindrical, white, 6-7.5 × 3-3.5 mm, glabrous; filaments ca. 3.5 mm long; anthers ca. 1.3 mm long; ovary glabrous to very sparsely pubescent near apex. Capsules subglobose to short-ovoid, 4-5 × 5.5-6.5 mm, placentae subapical; seeds not seen.
Discussion:
The poorly known Agarista subcordata probably is related to both A. albiflora and A. bracamorensis. All three taxa are limited to the northern Andes, but A. albiflora is by far the most widely distributed. Agarista subcordata can be distinguished readily from A. albiflora by its often smaller leaves and its inflorescence axis with short, curled hairs, and from A. bracamorensis by its wider, less strongly revolute leaves and its longer pedicels.
The poorly known Agarista subcordata probably is related to both A. albiflora and A. bracamorensis. All three taxa are limited to the northern Andes, but A. albiflora is by far the most widely distributed. Agarista subcordata can be distinguished readily from A. albiflora by its often smaller leaves and its inflorescence axis with short, curled hairs, and from A. bracamorensis by its wider, less strongly revolute leaves and its longer pedicels.
Distribution:
Peru South America| Amazonas Brazil South America|
Peru South America| Amazonas Brazil South America|