Ionopsis, Kunth, 1815

Krahl, Amauri Herbert, Krahl, Dayse Raiane Passos & Pansarin, Emerson Ricardo, 2021, Ionopsis × atalibae (Orchidaceae, Oncidiinae), a new natural hybrid from the Brazilian Amazon, Phytotaxa 478 (2), pp. 268-274: 269-272

publication ID

http://doi.org/ 10.11646/phytotaxa.478.2.8

DOI

http://doi.org/10.5281/zenodo.5481298

persistent identifier

http://treatment.plazi.org/id/677387F5-3752-F755-8EAA-F1C27542B275

treatment provided by

Marcus

scientific name

Ionopsis
status

 

Ionopsis   × atalibae Krahl, D.R.P.Krahl & Pansarin nothosp. nov.

Type: BRAZIL. Amazonas: Iranduba, Road AM-070, 3 ° 11’33.10”S, 60 ° 12’24.59”W, 0 m a.s.l., 06 July 2019, epiphyte in Citrus   tree, A. H. Krahl & F. C. L. Félix 1280 (holotype, INPA-288758). Fig. 1 View FIGURE 1 , 2A, 2D, 2G View FIGURE 2 GoogleMaps   .

Species with intermediate morphology between I. utricularioides   and I. satyrioides   . The leaves of I. × atalibae are deeply curved to supervolute-curved, and thick (vs. flat and coriaceous in I. utricularioides   and acicular, thick and slightly furrowed in I. satyrioides   ). The labellum of I. × atalibae is widely obovate ca. 1.1 × 1.0 cm, whitish to pale pink with dark purple oblique lines, apex deeply emarginate, while in I. utricularioides   the labellum is widely obovate, ca. 1.5 × 1.5 cm, whitish to pale pink with pale purple oblique lines, apex deeply emarginate, and in I. satyrioides   the lip is narrowly obovate, ca. 0.8 × 0.4 cm, pale purple with dark purple oblique lines, apex slightly emarginate.

Epiphytic herb, caespitose. Pseudobulbs 0.7-1.5 × 0.2-0.6 cm, ovate or cylindrical, with a single apical leaf, covered by the sheaths of 3-4 lateral leaves. Leaves 2.7-15.2 × 0.4-0.6 cm, curved to supervolute-curved, fleshy, dark green, apex obtuse to acute. Inflorescence 13.2-22.5 cm, lateral, branched, with 9-36 resupinate flowers; floral bracts ca. 2 × 1 mm, lanceolate with an acute apex. Flowers whitish to pale pink; pedicel and ovary ca. 8 mm long, cylindrical; dorsal sepal ca. 5 × 2 mm, ovate to oblong, apex obtuse; lateral sepals ca. 6 × 1.5 mm, oblong to lanceolate, connate at the base, apex acute; petals 6 × 3 mm, oblong to lanceolate, sub-falcate, apex obtuse; labellum ca. 11 × 10 mm, widely obovate, whitish to pale pink, with dark purple oblique lines and a yellow callus at the base, apex deeply emarginate; callus ca. 3 mm long. Column ca. 2 mm long, clavate, clinandrium with entire margins; pollinia 2, yellow. Fruit not seen.

Etymology: —the specific epithet honors Antônio Ataliba Félix, father of Francisco Clóvis Lima Félix, an orchid collector from Manaus (Amazonas, Brazil) who found the studied population.

Additional specimens examined: — Paratype: BRAZIL. Amazonas: Iranduba, Road AM-070, 3 ° 11’33.10”S, 60 ° 12’24.59”W, 0 m a.s.l., 06 July 2019,epiphyte on Citrus   tree, A GoogleMaps   . H GoogleMaps   . Krahl & F   . C   . L. Félix 1281 ( LBMBP)   .

Specimens of I. satyrioides   examined: — BRAZIL. Amazonas: Iranduba, Road AM-070, 3 ° 11’33.10”S, 60 ° 12’24.59”W, 0 m a.s.l., 06 July 2019, epiphyte in Citrus   tree, A. H GoogleMaps   . Krahl & F. C. L   . Félix 1276 ( LBMBP); ibid., A. H   . Krahl & F. C. L   . Félix 1277 ( LBMBP); ibid., A. H   . Krahl & F. C. L   . Félix 1278 ( LBMBP); ibid., A. H   . Krahl & F. C. L   . Félix 1279 ( LBMBP); ibid., 28 July 2019, A. H   . Krahl 1294 ( INPA 288760 View Materials ); ibid., A. H   . Krahl 1295 ( INPA 288759 View Materials )   .

Specimens of I. utricularioides   examined: — BRAZIL. Amazonas: Iranduba, Road AM-070, 3 ° 11’33.10”S, 60 ° 12’24.59”W, 0 m a.s.l., 06 July 2019, epiphyte in Citrus   tree, A. H GoogleMaps   . Krahl & F. C. L   . Félix 1272 ( LBMBP); ibid., A. H   . Krahl & F. C. L   . Félix 1273 ( LBMBP); ibid., A. H   . Krahl & F. C. L   . Félix 1274 ( LBMBP); ibid., A. H   . Krahl & F. C. L   . Félix 1275 ( LBMBP); ibid., 28 July 2019, A. H   . Krahl 1292 ( INPA 288761 View Materials ); ibid., A. H   . Krahl 1293 ( INPA 288762 View Materials )   .

Distribution and habitat: —The new hybrid was collected in the municipality of Iranduba in the km 15 of the Road AM-070, between the municipality of Manaus and Manacapuru.

Phenology: —The flowering period of I. × atalibae occurs from July to August. Ionopsis utricularioides   flowers from May to October, while I. satyrioides   flowers from June to December. The flowering period of the sympatric parental species overlaps in the study area.

Morphological affinities: —The new hybrid possesses intermediate morphology between both parental species. The leaf disposition and shape are reminiscent of those of I. utricularioides   . The leaves are deeply curved to supervolutecurved, and thick. The labellum is widely obovate ca. 11 × 10 mm, whitish to pale pink with dark purple oblique lines, apex deeply emarginate ( Table 1). As in I. utricularioides   , the inflorescence of the hybrid is branched. However, it produces less flowers than I. utricularioides   but more than I. satyrioides   ( Table 1). The size and shape of the hybrid flowers is intermediate between I. utricularioides   and I. satyrioides   ( Table 1, Fig. 2 View FIGURE 2 ).

A

Harvard University - Arnold Arboretum

H

University of Helsinki

F

Field Museum of Natural History, Botany Department

C

University of Copenhagen

L

Nationaal Herbarium Nederland, Leiden University branch

I

"Alexandru Ioan Cuza" University