Taxon Details: Ceratostema ferreyrae Luteyn
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Narratives:
Family:
Ericaceae (Magnoliophyta)
Ericaceae (Magnoliophyta)
Scientific Name:
Ceratostema ferreyrae Luteyn
Ceratostema ferreyrae Luteyn
Primary Citation:
J. Arnold Arbor. 67: 487, fig. 1. 1986
J. Arnold Arbor. 67: 487, fig. 1. 1986
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Description: Epiphytic shrub, from lignotuber; stems subterete, smooth, nitid, grayish- to reddish-brown when dry, glabrous; twigs subterete, complanate, minutely striate, densely pilose-hirsute with unicellular white hairs to 1.2 mm long. Leaves coriaceous, bullate, blade narrowly ovate to lanceolate, 12-20 x 3-5.5 cm, apex long-acuminate, base broadly and deeply cordate, auriculate with lobes well separated, amplexicaul, margins entire, surfaces wekaly hirsute along veins; pinnate, with 1 or 2 lateral veins per side but these anastomosing near base to form reticulate pattern throughout, midrib and lateral veins usually conspicuously impressed above and raised beneath, veinlets slightly raised on both surfaces; petiole 3-5 mm long, subterete, flattened abaxially, rugose, hirsute. Inflorescence solitary, axillary, racemose, all portions hirsute with unicellular white hairs, 3- or 4-flowered, flowers clustered distally; rachis 2-2.5 cm long, terete, striate; floral bracts narrowly lanceolate, long-acuminate, 4-5 mm long; pedicels 3.5-4.5 cm long, subterete, striate; bracteoles basal, 1.5-3 mm long, aristate. Flowers with calyx conspicuously articulate with pedicel, 6.57 mm long; hypanthium subcylindrical, ca. 4 mm long, 10-costate; limb campanulate, ca. 2.5-3 mm long including lobes; lobes triangular, acute, ca. 2 mm long; sinuses acute; corolla subcylindrical, basally swollen, 43-45 mm long, the tube red when fresh, the lobes narrowly triangular, long-acuminate, 15-17 mm long, purple when fresh; stamens 10, equal, ca. 40 mm long; filaments distinct, ca. 6 mm long; anthers ca. 35 mm long; thecae 11-12 mm long, strongly papillose, dehiscence by subterminal, oblique clefts ca. 1 mm long; tubules thin; style equaling corolla, ca. 43-45 mm long. Fruits not seen.
Distribution: Endemic to Peru and known only from the type collection.
Cultivated: possibly E (determination not certain).
Conservation Status: Rare and endangered.
Type: Peru. San Martín: Lamas, near tunnel between Tarapota and Yurimaguas, subtropical forest, 1100-1200 m alt., 2 Oct. 1973, R. Ferreyra 18279 (holotype, NY, photo NY neg. 11115; isotype, USM).
Description: Epiphytic shrub, from lignotuber; stems subterete, smooth, nitid, grayish- to reddish-brown when dry, glabrous; twigs subterete, complanate, minutely striate, densely pilose-hirsute with unicellular white hairs to 1.2 mm long. Leaves coriaceous, bullate, blade narrowly ovate to lanceolate, 12-20 x 3-5.5 cm, apex long-acuminate, base broadly and deeply cordate, auriculate with lobes well separated, amplexicaul, margins entire, surfaces wekaly hirsute along veins; pinnate, with 1 or 2 lateral veins per side but these anastomosing near base to form reticulate pattern throughout, midrib and lateral veins usually conspicuously impressed above and raised beneath, veinlets slightly raised on both surfaces; petiole 3-5 mm long, subterete, flattened abaxially, rugose, hirsute. Inflorescence solitary, axillary, racemose, all portions hirsute with unicellular white hairs, 3- or 4-flowered, flowers clustered distally; rachis 2-2.5 cm long, terete, striate; floral bracts narrowly lanceolate, long-acuminate, 4-5 mm long; pedicels 3.5-4.5 cm long, subterete, striate; bracteoles basal, 1.5-3 mm long, aristate. Flowers with calyx conspicuously articulate with pedicel, 6.57 mm long; hypanthium subcylindrical, ca. 4 mm long, 10-costate; limb campanulate, ca. 2.5-3 mm long including lobes; lobes triangular, acute, ca. 2 mm long; sinuses acute; corolla subcylindrical, basally swollen, 43-45 mm long, the tube red when fresh, the lobes narrowly triangular, long-acuminate, 15-17 mm long, purple when fresh; stamens 10, equal, ca. 40 mm long; filaments distinct, ca. 6 mm long; anthers ca. 35 mm long; thecae 11-12 mm long, strongly papillose, dehiscence by subterminal, oblique clefts ca. 1 mm long; tubules thin; style equaling corolla, ca. 43-45 mm long. Fruits not seen.
Distribution: Endemic to Peru and known only from the type collection.
Cultivated: possibly E (determination not certain).
Conservation Status: Rare and endangered.
Type: Peru. San Martín: Lamas, near tunnel between Tarapota and Yurimaguas, subtropical forest, 1100-1200 m alt., 2 Oct. 1973, R. Ferreyra 18279 (holotype, NY, photo NY neg. 11115; isotype, USM).
Flora and Monograph Treatment(s):
Ceratostema ferreyrae Luteyn: [Article] 1986. J. Arnold Arbor. 67: 487, fig. 1.
Ceratostema ferreyrae Luteyn: [Article] 1986. J. Arnold Arbor. 67: 487, fig. 1.