Taxon Details: Cavendishia isernii Sleumer
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Family:
Ericaceae (Magnoliophyta)
Ericaceae (Magnoliophyta)
Scientific Name:
Cavendishia isernii Sleumer
Cavendishia isernii Sleumer
Primary Citation:
Trab. Mus. Ci. Nat. Ser. Bot. 32: 5. 1936
Trab. Mus. Ci. Nat. Ser. Bot. 32: 5. 1936
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Description: Terrestrial or epiphytic shrub with stems to 5 m; mature branches terete, striate, or ribbed, glabrous, or puberulent and glabrate, brown to reddish-brown; twigs subterete to bluntly angled, striate or ribbed, puberulent or rarely densely short-pilose. Leaves elliptic, lance-elliptic, or ovate, (2.5-)5-7.5(-11) x (1-)1.5-3(-4.5) cm, basally rounded or obtuse, rarely subcordate, apically usually short-acuminate, rarely long-acuminate, apex itself usually blunt, rarely subacute, glabrous to moderately pilose on both surfaces often glabrate; 3-5-plinerved from near base, midrib and inner pair of lateral nerves impressed above and raised beneath, outer pair of lateral nerves slightly raised on both surfaces, reticulate veinlets raised above but obscure beneath; petiole subterete, angled, rugose, 4-8 mm long and 1-2 mm diam., pilose to glabrate. Inflorescence (11-)16-30(-40)-flowered, oblong inflorescence bracts rarely persisting at base; rachis subterete, angled, striate or ribbed, glabrous to coarsely short-pilose, (2.5-)6-11.5(-14.5) cm long and 1-1.5 mm diam., the proximal 1-1.5 cm often with sterile nodes, with or without glandular fimbriae; floral bracts caducous, oblong to obovate, 5-8 x 3.5-4 mm, apically rounded, marginally glandular-fimbriate, pale green to yellowish-green often suffused with purple when fresh; pedicels subterete, striate, glabrous to short-pilose, often glandular-fimbriate, 5-13 mm long (to 15 mm after anthesis) and 0.4-0.5 mm diam.; bracteoles located near base, ovate, 0.4-0.5 mm long, apically rounded, pilose, marginally glandular-fimbriate with fimbriae 0.4-0.5 mm long and distinct, or fimbriae stout and fusing distally. Flowers: calyx glabrous or pilose, often glandular-fimbriate, 4-5.5 mm long; hypanthium cylindric or cylindric-campanulate, smooth or bluntly pentagonal, 1.3-1.6 mm long, basally rounded, subtruncate, or with a smooth apophysate rim, slightly to conspicuously constricted at junction with limb, pale green when fresh; limb cylindric-campanulate or spreading, 2.5-4 mm long, often tinged with purple or red when fresh; lobes separate or imbricate at anthesis, ovate, oblong-ovate, or triangular, cuspidate or acute, 1-1.5 mm long, connivent or twisting-connivent around style base after anthesis, purplish or red when fresh, marginally with slender or stout glandular fimbriae, the distal ones sometimes fusing, or each side of margin provided with a more or less crescent-shaped to oblong callose gland and this sometimes with 1-2 fimbriae near sinus; sinuses none (when lobes imbricate) to narrowly U-shaped, obtuse, or broadly rounded; corolla cylindric to cylindric-urceolate, constricted at base and throat, glabrous or distally pilose, 8-12 mm long and 4-5 mm diam. at broadest part (constricted to 2.5 mm near base), when fresh shiny translucent white at base (sometimes in lower half) and violet to burgundy-red in upper half, lobes deltoid, obtuse, 1 mm long, reflexed at anthesis, when fresh reddish without and pinkish within; stamens 6.3-8.6 mm long; filaments distinct or rarely connate in lower half, weakly short-pilose in middle ventrally, alternately 1.5-2.5 mm and 2.5-3.5 mm long; anthers alternately 5-7 mm and 4.3-5.6 mm long; thecae alternately 2-2.5 mm and 1.5-2.3 mm long; style 10-11 mm long, sometimes exserted. Berry 7-9 mm long, insipid (fide Camp E-1702).
Distribution: Eastern foothills of the Andes in Ecuador and at the Cerros del Sira (Huánuco, Peru); 900-2225 m.
Type: Ecuador. Napo: Between Baeza and Archidona, Mar-Apr 1865 (fl), Isern 9 (holotype, MA, photo NY neg. 10875; isotype, B, n.v., destroyed).
Key to Varieties of Cavendishia isernii:1. Calyx lobes marginally glandular-callose, separate (not imbricate); hypanthium basally apophysate with a smooth rim ................ var. isernii
1. Calyx lobes marginally glandular-fimbriate, often imbricate; hypanthium basally rounded or truncate .................................... var. pseudospicata
Description: Terrestrial or epiphytic shrub with stems to 5 m; mature branches terete, striate, or ribbed, glabrous, or puberulent and glabrate, brown to reddish-brown; twigs subterete to bluntly angled, striate or ribbed, puberulent or rarely densely short-pilose. Leaves elliptic, lance-elliptic, or ovate, (2.5-)5-7.5(-11) x (1-)1.5-3(-4.5) cm, basally rounded or obtuse, rarely subcordate, apically usually short-acuminate, rarely long-acuminate, apex itself usually blunt, rarely subacute, glabrous to moderately pilose on both surfaces often glabrate; 3-5-plinerved from near base, midrib and inner pair of lateral nerves impressed above and raised beneath, outer pair of lateral nerves slightly raised on both surfaces, reticulate veinlets raised above but obscure beneath; petiole subterete, angled, rugose, 4-8 mm long and 1-2 mm diam., pilose to glabrate. Inflorescence (11-)16-30(-40)-flowered, oblong inflorescence bracts rarely persisting at base; rachis subterete, angled, striate or ribbed, glabrous to coarsely short-pilose, (2.5-)6-11.5(-14.5) cm long and 1-1.5 mm diam., the proximal 1-1.5 cm often with sterile nodes, with or without glandular fimbriae; floral bracts caducous, oblong to obovate, 5-8 x 3.5-4 mm, apically rounded, marginally glandular-fimbriate, pale green to yellowish-green often suffused with purple when fresh; pedicels subterete, striate, glabrous to short-pilose, often glandular-fimbriate, 5-13 mm long (to 15 mm after anthesis) and 0.4-0.5 mm diam.; bracteoles located near base, ovate, 0.4-0.5 mm long, apically rounded, pilose, marginally glandular-fimbriate with fimbriae 0.4-0.5 mm long and distinct, or fimbriae stout and fusing distally. Flowers: calyx glabrous or pilose, often glandular-fimbriate, 4-5.5 mm long; hypanthium cylindric or cylindric-campanulate, smooth or bluntly pentagonal, 1.3-1.6 mm long, basally rounded, subtruncate, or with a smooth apophysate rim, slightly to conspicuously constricted at junction with limb, pale green when fresh; limb cylindric-campanulate or spreading, 2.5-4 mm long, often tinged with purple or red when fresh; lobes separate or imbricate at anthesis, ovate, oblong-ovate, or triangular, cuspidate or acute, 1-1.5 mm long, connivent or twisting-connivent around style base after anthesis, purplish or red when fresh, marginally with slender or stout glandular fimbriae, the distal ones sometimes fusing, or each side of margin provided with a more or less crescent-shaped to oblong callose gland and this sometimes with 1-2 fimbriae near sinus; sinuses none (when lobes imbricate) to narrowly U-shaped, obtuse, or broadly rounded; corolla cylindric to cylindric-urceolate, constricted at base and throat, glabrous or distally pilose, 8-12 mm long and 4-5 mm diam. at broadest part (constricted to 2.5 mm near base), when fresh shiny translucent white at base (sometimes in lower half) and violet to burgundy-red in upper half, lobes deltoid, obtuse, 1 mm long, reflexed at anthesis, when fresh reddish without and pinkish within; stamens 6.3-8.6 mm long; filaments distinct or rarely connate in lower half, weakly short-pilose in middle ventrally, alternately 1.5-2.5 mm and 2.5-3.5 mm long; anthers alternately 5-7 mm and 4.3-5.6 mm long; thecae alternately 2-2.5 mm and 1.5-2.3 mm long; style 10-11 mm long, sometimes exserted. Berry 7-9 mm long, insipid (fide Camp E-1702).
Distribution: Eastern foothills of the Andes in Ecuador and at the Cerros del Sira (Huánuco, Peru); 900-2225 m.
Type: Ecuador. Napo: Between Baeza and Archidona, Mar-Apr 1865 (fl), Isern 9 (holotype, MA, photo NY neg. 10875; isotype, B, n.v., destroyed).
Key to Varieties of Cavendishia isernii:
Flora and Monograph Treatment(s):
Cavendishia isernii Sleumer: [Article] Luteyn, James L. 1983. Ericaceae--part I. Cavendishia. Fl. Neotrop. Monogr. 35: 1-290.
Cavendishia isernii Sleumer: [Article] Luteyn, James L. 1983. Ericaceae--part I. Cavendishia. Fl. Neotrop. Monogr. 35: 1-290.