Nectandra herrerae O.C.Schmidt
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Authority
Rohwer, Jens G. 1993. Lauraceae:
. Fl. Neotrop. Monogr. 60: 1-332. (Published by NYBG Press) -
Family
Lauraceae
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Scientific Name
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Type
Type. Peru. Cuzco: Valley of the Urubamba, vie. La Maquina station, 2050 m, Sep 1929 (fl), F. L. Herrera 2662 (holotype, B).
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Description
Species Description - Shrubs or small trees, to 10 m. Branchlets 5 cm below terminal bud 1.7-3 mm in diam., slightly angular, the youngest part covered with a dense, light brownish indument of relatively long hairs (up to ca. 0.4 mm), ascending to erect, first becoming greyish and less dense on older twigs, then wearing off; terminal buds ovate to elongate, 4-7.5 mm long, 1.2-2 mm thick, densely covered with ascending to erect, light brownish hairs. Petioles 3.5-10 mm long, 1.2-2.5 mm thick, roundish below, slightly longitudinally ridged, canaliculate above, but the furrow often concealed by the dense indument, which has a structure ± like that on twigs, and is clearly denser above than below. Leaves alternate, ± lanceolate, rarely with a tendency towards elliptic or oblanceolate, widest ± at the middle (more frequently below than above the middle), 9-21 cm long, 3-6.5 cm wide, ca. (2.5-)3-4 times longer than wide, tip acuminate, base narrowly cuneate to obtuse but attenuate at the very base, margin flat to narrowly bent down, distinctly recurved to revolute at the base, midrib and secondary veins ± impressed above, prominent below, secondary veins 5-9 pairs, diverging at 30-50(-65)°, in mid-lamina running at an angle of 15-30(-50)° to the midrib, tertiary venation scalariform, level to slightly impressed above, mostly inconspicuous, ± distinctly raised below, finer venation level on both sides or slightly raised below. Indument consisting of relatively long hairs (ca. 0.30.5 mm), straight to ± slightly wavy, ± erect, pale to reddish, in youngest leaves dense on midrib and largest veins above, intermediate to sparse in intercostal area, the latter quickly glabrescent, indument for a long time persistent on veins, initially intermediate to dense below, in older leaves intermediate to sparse, or finally persistent only on veins. Gland dots sometimes moderately distinct on upper surface of young leaves, otherwise not visible. Inflorescences in the axils of distal leaves, 0.6-1.3 mm in diam. at the base, on a twig of 1.5-2.8 mm diam., 3.5-13 cm long, reaching ca. 2/5-5/6 the length of the subtending leaf; peduncle 1.4-3.5 cm long, i.e., ca. 1/4 to 2/5 the length of the inflorescence, lateral branches 6-12 below terminal cyme, branched 2-4 times, indument ± as on twigs, ± moderately dense, denser on the receptacle. Pedicels 0.5-1.8 mm long, ca. 0.4 mm thick. Flowers 4-4.5 mm in diam., tepals ± ovate to oblong, 1.5-2 mm long and ca. 1 mm wide, with fine, long papillae on the inside surface, their density gradually increasing from (sub)glabrous at the base of the tepal to (moderately) dense at the tip. Stamens ca. 0.8-1 mm long including a distinct filament of 0.3-0.4 mm, anthers papillose, in the two outer whorls ± transverse-elliptic, broadly rounded to almost truncate or minutely apiculate at the tip, not prolonged beyond the pollen sacs, in the third whorl anthers roundish-obtrapeziform, ± truncate at the tip. Staminodes ca. half as long as the stamens, ± clavate, papillose-hairy on abaxial side. Pistil ca. 1.3-1.7 mm long, ovary ellipsoid, glabrous, style ca. as long as the ovary, glabrous or with some papillae. Receptacle urceolate to almost tubular, covered with relatively long, appressed to ascending hairs inside. Berry spheroidal, ca. 8 mm in diam., cupule ± trumpet-shaped, the cup itself shallow, only ca. 2-3 mm deep and ca. 8 mm in diam., gradually merging into the distinctly thickened lenticellate pedicel.
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Discussion
Nectandra herrerae is a member of the group around N. membranacea, as can be seen from its flower structure and its fruits. In contrast to most other members of this group, N. herrerae has almost exclusively erect hairs on the lower leaf surface. Within the N. membranacea group, this character is shared only with N. hirtella, which differs by a shorter and less dense indument on both leaves and flowers, by an (almost) glabrous inner face of the receptacle, and by an almost flat leaf base. However, among the material placed in N. herrerae here, the characteristic revolute leaf base is also missing in a few of the leaves of Gentry 44146, and in the youngest leaf of 6343. In the former the (normally reflexed) lobes are poorly developed, while in the latter they are well developed but not reflexed, making the leaf base abruptly truncate.
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Distribution
Known only from the vicinity of Machupicchu in Peru at an altitude of ca. 2000 m. Flowering material has been collected in January and September, fruits in June.
Peru South America| Cusco Peru South America|