Taxon Details: Psammisia darienensis Luteyn & Wilbur
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Narratives:
Family:
Ericaceae (Magnoliophyta)
Ericaceae (Magnoliophyta)
Scientific Name:
Psammisia darienensis Luteyn & Wilbur
Psammisia darienensis Luteyn & Wilbur
Primary Citation:
Ann. Missouri Bot. Gard. 65: 109. 1978
Ann. Missouri Bot. Gard. 65: 109. 1978
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Description: Epiphytic vine, glabrous throughout except for the filaments; twigs bluntly angled becoming subterete, smooth or slightly striate, brown or grayish-brown when dry. Leaves subcoriaceous, elliptic to lance-elliptic, 16-22 x 6-9 cm, basally broadly obtusely or cuneate, shortly decurrent, apically short-acuminate, entire, brown when dry; pinnately nerved, the midrib plane or slightly impressed above, conspicuously raised beneath, the 5-7 lateral nerves slightly raised on both the surfaces, anatomosing near the margins, the veinlets slightly raised on both surfaces; petioles subterete, flattened dorsally, 4-7 mm long and 2 mm in diam. Inflorescences axillary, solitary or paired, racemose, 8-9-flowered; rachis subterete, bluntly angled, 5-7 mm long; floral bracts persistent, coriaceous, ovate lanceolate, acuminate, 2-2.5 x 1.5 mm, minutely toothed or glandular fimbriate; pedicels cylindric, striate or ribbed, slightly expanded distally, 9-12 mm long and ca. 0.75 mm in diam.; bracteoles sub-basal, similar to floral bracts but 1.5 x ca. 1 mm. Flowers slightly beyond anthesis with the calyx 6-6.5 mm long; lobes erect, triangular, acute, 2.5-2.7 mm long; sinuses acute; corolla subcylindric, ca. 7 mm long and 3.5-4 mm in diam., the lobes triangular, obtuse, 1-1.2 mm long, reflexed at anthesis; stamens 10, conical, 6 mm long; filaments distinct, ca. 1.5 mm long and 0.75 mm wide, sparsely pilose on the inner surface of the distal half, coarsely ciliate onto the connective margins which become indistinct at the base of the tubules; connectives neither spurred nor callose thickened; anthers ca. 5.5 mm long including the tubules; thecae wekaly granular, rounded and broadest at the base, not incurved; tubules striaght, 2-2.3 mm long, dehiscing the length of the tubules by an elongate cleft; style not seen. Berry reportedly turning red.
Distribution: Endemic to Panama and known only from the type collection.
Type: Panama. Darién: to pf W ridge of Cerro Tacarcuna, 1800-1850 m, Gentry & Mori 14024 (holotype, MO).
Description: Epiphytic vine, glabrous throughout except for the filaments; twigs bluntly angled becoming subterete, smooth or slightly striate, brown or grayish-brown when dry. Leaves subcoriaceous, elliptic to lance-elliptic, 16-22 x 6-9 cm, basally broadly obtusely or cuneate, shortly decurrent, apically short-acuminate, entire, brown when dry; pinnately nerved, the midrib plane or slightly impressed above, conspicuously raised beneath, the 5-7 lateral nerves slightly raised on both the surfaces, anatomosing near the margins, the veinlets slightly raised on both surfaces; petioles subterete, flattened dorsally, 4-7 mm long and 2 mm in diam. Inflorescences axillary, solitary or paired, racemose, 8-9-flowered; rachis subterete, bluntly angled, 5-7 mm long; floral bracts persistent, coriaceous, ovate lanceolate, acuminate, 2-2.5 x 1.5 mm, minutely toothed or glandular fimbriate; pedicels cylindric, striate or ribbed, slightly expanded distally, 9-12 mm long and ca. 0.75 mm in diam.; bracteoles sub-basal, similar to floral bracts but 1.5 x ca. 1 mm. Flowers slightly beyond anthesis with the calyx 6-6.5 mm long; lobes erect, triangular, acute, 2.5-2.7 mm long; sinuses acute; corolla subcylindric, ca. 7 mm long and 3.5-4 mm in diam., the lobes triangular, obtuse, 1-1.2 mm long, reflexed at anthesis; stamens 10, conical, 6 mm long; filaments distinct, ca. 1.5 mm long and 0.75 mm wide, sparsely pilose on the inner surface of the distal half, coarsely ciliate onto the connective margins which become indistinct at the base of the tubules; connectives neither spurred nor callose thickened; anthers ca. 5.5 mm long including the tubules; thecae wekaly granular, rounded and broadest at the base, not incurved; tubules striaght, 2-2.3 mm long, dehiscing the length of the tubules by an elongate cleft; style not seen. Berry reportedly turning red.
Distribution: Endemic to Panama and known only from the type collection.
Type: Panama. Darién: to pf W ridge of Cerro Tacarcuna, 1800-1850 m, Gentry & Mori 14024 (holotype, MO).
Flora and Monograph Treatment(s):
Psammisia darienensis Luteyn & Wilbur: [Article] 1978. Ann. Missouri Bot. Gard. 65: 109.
Psammisia darienensis Luteyn & Wilbur: [Article] 1978. Ann. Missouri Bot. Gard. 65: 109.