Ionopsis × atalibae (Orchidaceae, Oncidiinae), a new natural hybrid from the Brazilian Amazon
Krahl, Amauri Herbert
Krahl, Dayse Raiane Passos
Pansarin, Emerson Ricardo
Phytotaxa
2021
2021-01-06
478
2
268
274
8VYHP
Kunth
1815
[136,234,1524,1550]
Liliopsida
Orchidaceae
Ionopsis
Plantae
Asparagales
1
269
Tracheophyta
genus
Type: BRAZIL. Amazonas: Iranduba, RoadAM-070, 3 °11’33.10”S, 60 °12’24.59”W, 0 m a.s.l., 06 July 2019, epiphyte in Citrustree, A. H. Krahl & F. C. L. Félix 1280( holotype, INPA-288758). Fig. 1, 2A, 2D, 2G. Species with intermediate morphology between I. utricularioidesand I. satyrioides. The leaves of I. × atalibaeare deeply curved to supervolute-curved, and thick (vs. flat and coriaceous in I. utricularioidesand acicular, thick and slightly furrowed in I. satyrioides). The labellum of I. × atalibaeis widely obovate ca. 1.1 × 1.0 cm, whitish to pale pink with dark purple oblique lines, apex deeply emarginate, while in I. utricularioidesthe 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. satyrioidesthe 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 mmlong, 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 mmlong. Column ca. 2 mmlong, 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, RoadAM-070, 3 °11’33.10”S, 60 °12’24.59”W, 0 m a.s.l., 06 July 2019,epiphyte on Citrustree, A . H. Krahl& F. C. L. Félix1281( LBMBP). Specimens of I. satyrioidesexamined:— BRAZIL. Amazonas: Iranduba, RoadAM-070, 3 °11’33.10”S, 60 °12’24.59”W, 0 m a.s.l., 06 July 2019, epiphyte in Citrustree, A. H . Krahl& F. C. L. Félix1276( LBMBP); ibid., A. H . Krahl& F. C. L. Félix1277( LBMBP); ibid., A. H . Krahl& F. C. L. Félix1278( LBMBP); ibid., A. H . Krahl& F. C. L. Félix1279( LBMBP); ibid., 28 July 2019, A. H . Krahl1294( INPA 288760); ibid., A. H . Krahl 1295( INPA 288759). Specimens of I. utricularioidesexamined:— BRAZIL. Amazonas: Iranduba, RoadAM-070, 3 °11’33.10”S, 60 °12’24.59”W, 0 m a.s.l., 06 July 2019, epiphyte in Citrustree, A. H . Krahl& F. C. L. Félix1272( LBMBP); ibid., A. H . Krahl& F. C. L. Félix1273( LBMBP); ibid., A. H . Krahl& F. C. L. Félix1274( LBMBP); ibid., A. H . Krahl& F. C. L. Félix1275( LBMBP); ibid., 28 July 2019, A. H . Krahl1292( INPA 288761); ibid., A. H . Krahl 1293( INPA 288762).
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. × atalibaeoccurs from July to August. Ionopsis utricularioidesflowers from May to October, while I. satyrioidesflowers 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. utricularioidesbut more than I. satyrioides( Table 1). The size and shape of the hybrid flowers is intermediate between I. utricularioidesand I. satyrioides( Table 1, Fig. 2).
3340961313
2019-07-06
A, H, F, C, L
Brazil
Type
-3.1925278
Road
1
-60.206833
Iranduba
1
269
1
Amazonas
holotype
3340961311
2019-07-06
A
Brazil
-3.1925278
Road
1
-60.206833
Iranduba
4
272
1
Amazonas
paratype
3340961302
[891,915,1285,1310]
2019-07-06
H
Brazil
true
-3.1925278
Road
1
-60.206833
Iranduba
4
272
1
Amazonas
paratype
3340961317
[925,1044,1284,1310]
F
Brazil
Krahl
4
272
1
Amazonas
paratype
3340961310
[1054,1076,1284,1310]
C
Brazil
true
Krahl
4
272
1
Amazonas
paratype
3340961301
[1116,1361,1284,1310]
LBMBP
Brazil
Felix
4
272
1
Amazonas
paratype
3340961325
2019-07-06
A, H
Brazil
-3.1925278
Road
1
-60.206833
Iranduba
4
272
1
Amazonas
3340961309
[939,1123,1356,1382]
F, C, L
Brazil
Krahl
4
272
1
Amazonas
3340961326
LBMBP, A, H
Brazil
Felix
4
272
1
Amazonas
3340961305
[202,382,1392,1418]
F, C, L
Brazil
Krahl
4
272
1
Amazonas
3340961306
[393,769,1392,1418]
LBMBP, A, H
Brazil
Felix
4
272
1
Amazonas
3340961307
[779,960,1392,1418]
F, C, L
Brazil
Krahl
4
272
1
Amazonas
3340961312
[971,1347,1392,1418]
LBMBP, A, H
Brazil
Felix
4
272
1
Amazonas
3340961315
F, C, L
Brazil
Krahl
4
272
1
Amazonas
3340961324
[229,773,1428,1454]
2019-07-28
LBMBP, A, H
Brazil
Felix
4
272
1
Amazonas
3340961303
[784,1232,1428,1455]
2019-07-28
A, H
Brazil
Krahl
4
272
INPA 288760
1
Amazonas
3340961304
INPA
Brazil
4
272
INPA 288759
1
Amazonas
3340961316
2019-07-06
A, H
Brazil
-3.1925278
Road
1
-60.206833
Iranduba
4
272
1
Amazonas
3340961319
[939,1123,1536,1562]
F, C, L
Brazil
Krahl
4
272
1
Amazonas
3340961318
LBMBP, A, H
Brazil
Felix
4
272
1
Amazonas
3340961308
[202,382,1572,1598]
F, C, L
Brazil
Krahl
4
272
1
Amazonas
3340961328
[393,769,1572,1598]
LBMBP, A, H
Brazil
Felix
4
272
1
Amazonas
3340961323
[779,960,1572,1598]
F, C, L
Brazil
Krahl
4
272
1
Amazonas
3340961322
[971,1347,1572,1598]
LBMBP, A, H
Brazil
Felix
4
272
1
Amazonas
3340961321
F, C, L
Brazil
Krahl
4
272
1
Amazonas
3340961320
[229,773,1608,1634]
2019-07-28
LBMBP, A, H
Brazil
Felix
4
272
1
Amazonas
3340961327
[784,1232,1608,1635]
2019-07-28
A, H
Brazil
Krahl
4
272
INPA 288761
1
Amazonas
3340961314
INPA
Brazil
4
272
INPA 288762
1
Amazonas