Arapatiella psilophylla (Harms) R. S. Cowan var. psilophylla

Rodrigues, Ana Tereza Novaes Parga, Falcão, Marcus José De Azevedo & Mansano, Vidal De Freitas, 2023, A Taxonomic Revision of Arapatiella (Fabaceae: Caesalpinioideae): An Endemic and Threatened Genus from the Brazilian Coast, Phytotaxa 606 (4), pp. 273-286 : 282-283

Arapatiella psilophylla (Harms) R. S. Cowan var. psilophylla . ( Figures 1 – 2 )

Trees 4 – 25 m tall, 12 – 40 (– 64) cm in diameter. Leaf rachis 1.4 – 19.6 cm long, glabrous to sparsely puberulent, indumentum golden to brown; petioles 0.8 – 8 cm long, glabrous to sparsely puberulent, often only at base, indumentum golden to brown; petiolules 1 – 6 mm long, glabrous to sparsely puberulent; proximal leaflets 3.8 – 20.4 × 2.1 – 7.5 cm, distal leaflets 4.5 – 27.3 × 2.5 – 9.5 cm, elliptic to oval to oblong, acuminate to cuspidate, sometimes acute; stipules 0.7 – 6 × 0.7 – 6.5 cm. Inflorescences 4 – 14 (– 20) cm long, densely flowered at the apex of fascicles, rachis densely strigulate, indumentum golden to brown, bracts 0.5 – 4.2 × 0.5 – 5.4 cm, bracteoles 2 – 3 × 2 – 3 mm. Flowers with buds up to 1.4 cm long; pedicels 2 – 10 (– 14) mm long; hypanthium 4 – 6 (–8) mm long; sepals light green to brown, free portion of outermost ones 4 – 10 × 4 – 8 mm, innermost ones 5 – 11 × 5 – 10 mm; petals 9 – 14 (– 16) × 5 – 9 mm, nail 4 – 6 mm long; filaments 14 – 19 mm long, anthers 3 – 4 mm long; ovary 4 – 6 × 1 – 2 mm, indumentum golden to coppery, style 13 – 20 mm long, stipe 4 – 6 mm long. Fruits 30 – 45 × 1.2 – 3 cm, indumentum golden to brown, densely strigose.

Diagnosis: —The variety A. psilophylla var. psilophylla can be distinguished from A. psilophylla var. emarginata by having flowers, inflorescences and stipules generally smaller; the shape of the leaflets very often elliptical, which is not present in the other variety; the apex of the leaflets almost always acuminate or cuspidate; inflorescence indumentum lighter, from gold to brown; rachis and petioles thinner; leaflets matte and coriaceous.

Distribution and habitat: —The distribution of A. psilophylla var. psilophylla is much wider than that of A. psilophylla var. emarginata , occurring along almost the entire coast of Bahia, being Conde the northernmost locality of occurrence among the specimens. ( Figure 4 ).

Phenology: —The flowering period can occur from March to October, being more predominant between May and September. There is a single report of blooming for January, corresponding to the collection Santos, T. S. 1386. We observed that there are reports for fruits for all months of the year.

Selected Specimens (12 out of 114): — BRAZIL, Bahia: Ilhéus: Fazenda Attalea, Distrito de Castelo Novo , 13 km a oeste do povoado de Mamoan. Árvore , 20 m, 10-IV-1995, Mattos Silva, L. A. 3109 ( ALCB, CEPEC, HUEFS, NY, UESC); área do CEPEC, km 22 da rod. Ilhéus / Itabuna BR 415. Árvore, 7 m, 23-XI-1988, Santos, T. S. 4429 ( CEPEC, MBM, RB); Ituberá: Reserva Michelin, Mata da Vila V , 13º48’28’’S 39º12’14’’W. Árvore, 20 m, 30-VII-2012, Nascimento, F. H. F. 970 ( HUEFS); Porto Seguro: Reserva da Brasil Holanda de Indústrias S/A , 16º27’45’’S 39º19’31’’W. Árvore, 25 m, 7-IV-1994, Jardim, J. G. 408 ( CEPEC, K, NY, RB, SPF, US); Parque Nacional Monte Pascoal. Árvore , 15 m, 20-IX-1989, Hatschback, G. M. 53496 ( CEPEC, FLOR, HUEFS, MBM, MO, NL, SPSF, UB, UEC, UPCB, US) ; Prado: rod. BA 284, trecho Prado/Itamarajú , ca. de 65 km a noroeste de Prado. Árvore, 18 m, 18- IX-1978, Mori, S. A. 10670 ( CEPEC, NY, RB, US) ; Santa Cruz de Cabrália: Ca. 12 km a noroeste de Porto Seguro , 16º23’S 39º08’W. Árvore, 18 m, 14-VIII-1979, Mori, S. A. 12711 ( CEPEC, F, NY, RB); Árvore, 10 m, 16-V-1999, Guedes, M. C. 3114 ( ALCB, CEPEC, PEUFR, SPF); Una: Reserva Biológica do Mico-Le ã o (BAMA), entrada no km 46 da rod. BA-001 Ilhéus/Una , 15º09’S 39º05’W. Árvore, 7 m, 21-IV-1998, Amorim, A. M. 2401 ( CEPEC, NY, SP); Maruim, borda da Fazenda Maruim e Fazenda Dois de Julho, 33 km sudoeste de Olivença na estrada Olivença/ Buerarema . Árvore, 18 m, 2-V-1981, Mori, S. A. 13910 ( CEPEC, NY); Uruçuca: Fazenda Água Boa , 14º10’40’’S 39º01’W. Árvore, 10 m, 11-VI-2006, Amorim, A. M. 6031 ( HUEFS, NY); Distrito de Serra Grande, 7, 3 km na estrada Serra Grande / Itacaré, Fazenda Lagoa do Conjunto Fazenda Santa Cruz, 14º25’S 89º01’W. Árvore, 10 m, Carvalho, A. M. 3502 ( CEPEC, HUEFS, K, MBM, NY, US) .

Additional Specimens Examined (103 out of 114): — BRAZIL, Bahia: Mattos, A. 507 (RB); Duarte, A. P. 8018 (IPA, RB); Almeida , A. C. T. 20 (HUESB); Amorim, A. M. 6417 (CEPEC, HUEFS, NY, RB); Amorim, A. M. 1387 (CEPEC, MBM, NY); Amorim, A. M. 2641 (CEPEC, K, NY, SP, UEC); Amorim, A. M. 759 (CEPEC, NY); Carvalho, A. M. 6095 (CEPEC, K, NY, RB), Rylands, A. 126/1980 (CEPEC, INPA); Rylands, A. 93/1980 (CEPEC, INPA); Eupunino, A. 326 (CEPEC, IPA, US); Aona, L. Y. A. 2304 (HUEFS, HURB, RB); Magalhães, C. M. 14 (CEPEC); Cardoso, D. 1661 (CEPEC, HUEFS, NY); Cardoso, D. 4125 (ALCB, HUEFS, HUNI, HURB, VIC); Folli, D. A. 6721 (CVRD, RB); Folli, D. A. 691 (CEN, CEPEC, CVRD); Piotto, D. 2212 (NY); Rocha, D. 1033 (CEPEC); Santos, F. S. 621 (CEPEC, MBM, UB); Santos, F. S. 756 (CEPEC, MBM); Farias, G. L. 211 (CEN, CVRD); Fernandes, M. F. 128 (HUEFS, RB); Bondar, 2351 (NY, SP); Lewis, G. P. 778 (CEPEC, MBM, NY, RB, US); Gomes, F. S. 1580 (ALCB); Grupo de Coletores do Grupo Araticum 6 (RB); Guedes, M. L. 16898 (ALCB); Guedes, M. L. 5555 (ALCB); Guedes, M. L. 7523 (ALCB, UESC); Guedes, M. L. 5331 (ALCB, IPA, HST); Guedes, M. L. 9795 (ALCB); Lima, H. C. 5789 (RB); Lima, H. C. 8228 (HUEFS, RB); Lima, H. C. (HUEFS, RB); Brito, H. S. 194 (CEPEC, INPA, UEC); Hatschback, G. M. 75698 (MBM, US); Hage, J. L. 53 (CEPEC); Hage, J. L. 804 (CEPEC, RB); Jardim, J. G. 684 (NY, RB); Mattos Silva, L. A. 2939 (CEPEC, HUEFS, MBM, NY, US); Mattos Silva, L. A. 3109 (ALCB, CEPEC, HUEFS, NY, UESC), Mattos Silva, L. A. 3639 (ALCB, CEPEC, UESC); Maltone, L. 965 (RB); Monteiro, M. T. 23536 (HUEFS, HST); Matos, F. B. 1732 (CEPEC, HUEFS, RB); Ribeiro, M. 1282 (RB); Morim, M. P. 486 (ALCB, CEPEC); Silva, N. T. 58299 (NY, US); Nascimento, F. H. F. 938 (HUEFS); Nascimento, F. H. F. 939 (HUEFS); Nascimento, F. H. F. 940 (HUEFS); Nascimento, F. H. F. 970 (HUEFS); Neves, D. M. 1760 (HUEFS); Oliveira, R. B. 17 (ALCB); Velozo, P 940 (HUEFS, R, RB); Paraguassú, L. A. A. 313 (ALCB, CEPEC); Popovkin, A. V. 1294 (HUEFS); Popovkin, A. V. 1456 (HUEFS); Popovkin, A. V. 1433 (HUEFS); Queiroz, L. P. 13849 (CEPEC, HUEFS, NY); Queiroz, L. P. 15670 (HUEFS); Queiroz, L. P. 16186 (ALCB, HUEFS); Fróes, R. L. 20024 (F, IPA, K, NY, US); Belém, R. P. 1097 (CEPEC, IPA, NY, UB, US); Belém, R. P. 1121 (CEPEC, US); Belém, R. P. 2622 (CEPEC, IPA, NY, US); Belém, R. P. 2679 (CEPEC, IAN, IPA, NY, UB, US); Belém, R. P. 2711 (CEPEC, IAN, IPA); Pinheiro, R, S. 1285 ( US); Pinheiro, R. S. 1299 (NY, US); Pinheiro, R. S. 2181 (CEPEC, IPA, US); Rocha, L. s.n. ALCB117539 (ALCB); Mori, S. A. 12729 (CEPEC, F, RB); Mori, S. A. 13746 (CEPEC, NY); Mori, S. A. 13875 (CEPEC, NY); Mori, S. A. 9837 (CEPEC, NY, US); Mori, S. A. 12075 (CEPEC, NY, US); Mori, S. A. 14130 (CEPEC, NY); Mori, S. A. 10319 (CEPEC, NY, US); Mori, S. A. 10644 (CEPEC, RB); Santos, T. S. 187 (CEPEC, MBM); Santos, T. S. 1386 (CEPEC, US); Santos, T. S. 3975 (CEPEC, HUEFS); Santos, F. A. 729 (CEPEC, NY, RB, US); Mansano, V. F. 2022-6 (RB); Thomas, W. W. 6991 (CEPEC); Thomas, W. W. 7499 (CEPEC); Thomas, W. W. 7659 (CEPEC); Thomas, W. W. 9992 (CEPEC, MBML, NY, R, RB, US); Thomas, W. W. 7596 (NY); Lima, S. S. 152 (ALCB); Almeida , L. P. 113 (CEN); Ferreira, M. C. 792 (IBGE, HUEFS, RB); Curran, M. s.n. RB00135748 (RB); Loureiro, D. M. 578 (ALCB, MBM); Thomas, W. W. 8081 (CEPEC, K); Gomes, F. S. 1599 (ALCB).

Figures

FIGURE 1. A–B. A. psilophylla var. emarginata; C–P. A. psilophylla var. psilophylla. A. Leaf and stipule; B. Detail of leaflet apex; C. Leaf and stipule with young leaf emerging; D. Detail of leaflet apex; E. Detail of the stipule; F. Inflorescence; G. Flower bud; H. Flower; I. Detail of hypanthium with gynoecium; J Detail of the calyx; K. Petal; L. Anther; M Detail of the carpel; N. Detail of the stigma; O. Fruit; P. Seed.A–B. Pinheiro 1548; C–D. Santos 729; E. Amorim 1402; F–G; I–N. Aona 2304; H. Mansano 2022-6; O–P. Amorim 2641. Drawn by Marcus Falcão.

FIGURE 2. Arapatiella psilophylla var. psilophylla. A. Habit. B. Detail of the trunk. C. Detail of the pair of stipules. D. Flowers and young fruits. E. Flowers and buds. F. Leaf. G. Inflorescence with young fruits and bracts. H. Fruits. I. Leaf and inflorescence. J. Open fruit with seeds. Image authors: A–D, F–H, J: A. T. Novaes and M. J. Falcão; E, I: SpeciesLink. A–C, E–F. Lima, H. C. 8228; D, G–H. Mansano 2022-6; I. Aona, L. Y. S. 2034; J. Matos, F. B. 1732. Scale bar: A:1 m; B: 20 cm; C–E, G, J: 1 cm; F, I: 5 cm; H: 10 cm.

FIGURE 4. Distribution map of Arapatiella psilophylla varieties. Source: Arc Gis with modifications.