Hornschuchia polyantha Maas

Vilela, Lucas & Lopes, Jenifer De Carvalho, 2022, Hornschuchia (Annonaceae), an endemic and threatened genus from the Brazilian Atlantic Forest, European Journal of Taxonomy 828, pp. 75-108 : 97-99

publication ID

https://doi.org/10.5852/ejt.2022.828.1859

DOI

https://doi.org/10.5281/zenodo.6823791

persistent identifier

https://treatment.plazi.org/id/03C887E4-0114-FFDA-FD89-F9D9FB1C7E49

treatment provided by

Felipe

scientific name

Hornschuchia polyantha Maas
status

 

Hornschuchia polyantha Maas

Fig. 6 View Fig

Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, Series C: Biological and Medical Sciences 89 (3): 258, fig. 7 ( Maas et al. 1986).

Type : BRAZIL – Bahia • (Una*), “Km 9 da nova rodovia São José/Uma”; 21 Apr. 1976; T.S. Santos 3099; holotype: CEPEC [ CEPEC00012625 View Materials ]!; isotypes: NY [ NY00026102 ]!, MBM [ MBM117085 View Materials ]!, U [ U0000335 ] !.

Material examined

BRAZIL – Bahia • “Aurelino Leal, 10–11 km W of BR-101 on road from,Aurelino Leal to Lage do Banco ”; [14°20′34.8″ S, 39°22′37.7″ W]; 16 Feb. 1994; J. A. Kallunki et al. 547; CEPEC [ CEPEC00066789 View Materials ]!, NY [ NY00395790 ]!, SPF GoogleMaps ! • ibid.; 3 May 1992; W. W. Thomas 9086; CEPEC [ CEPEC00056483 View Materials ]!, MBM [ MBM 284834 View Materials ]!, NY [ NY00395788 ] GoogleMaps ! • ibid.; [14°20′43.2″ S, 39°22′54.7″ W]; alt. 175–200 m; 30 Oct. 2001; W. W. Thomas et al. 12675; CEPEC [ CEPEC00091105 View Materials ]!, NY [ NY00684351 ]!, RB [ RB00484693 ]!, SPF GoogleMaps ! • “Buerarema, Rodovia Buerarema- São José da Vitória (BR-101), ramal à esquerda, ca 15 km de Buerarema, ca 9.5 km da BR, Fazenda Sta. Rosa, entrada ca 500m à direita, proprietário: José Elias”; 15°06′19″ S, 39°17′20″ W; 5 Feb. 2003; P. Fiaschi et al. 1287; CEPEC [ CEPEC00096080 View Materials ]!, NY [ NY00821927 ]!, RB [ RB00484690 ]!, SPF GoogleMaps ! • “Camacã, BR-101 ao Rio Pardo ”; [15°33′04.7″ S, 39°25′24.6″ W]; 24 May 1971; T. S. Santos 1690; NY [ NY00395792 ] GoogleMaps ! • “ Gongogi, Barragem do funil ”; [14°13′38.0″ S, 39°27′47.9″ W]; 16 Nov. 1971; T.S. Santos 2157; NY [ NY00395793 ] GoogleMaps ! • “ Itajuípe, rodovia Itajuípe/Ubaitaba, 12Km N Banco Central ”; [14°31′42.7″ S, 39°21′04.0″ W]; 24 Apr. 1965; R.P. Belém 879; CEPEC [ CEPEC00001279 View Materials ] GoogleMaps ! • “ Itapebi, Fazenda Lombardia BR-101 a Fazenda Ventania ”; [15°52′52.3″ S, 39°31′03.6″ W]; 19 Aug. 1971; T.S. Santos 1859; CEPEC [ CEPEC00007096 View Materials ] GoogleMaps ! • “Mascote, Estrada de terra ao longo da encosta da margem norte do rio Pardo , em direção a jusante, 7 km da ponte da BR- 101 sobre o rio”; 15°36′50.3″ S, 39°22′57.0″ W; 26 Oct. 2008; R. Mello-Silva et al. 3132; SPF GoogleMaps ! • “Entrada na cabeceira da ponte do Rio Pardo BR-101, próximo de São João do Paraiso, Fazenda Ai Tais a ca 5.5 km da BR 101 , área localizada depois do rio Pardo , travessia de canoa”; 15º36′24″ S, 39º22′21″ W; 27 Dec. 2004; A. M. Amorim et al. 4572; RB [ RB00421327 ]!, SPF GoogleMaps ! • “ Ubaitaba, rodovia Ubaitaba/Lages, 8 km de Ubaitaba ”; [14°15′19.7″ S, 39°24′48.4″ W]; 25 Apr. 1965; R.P. Belém 936; CEPEC [ CEPEC00001115 View Materials ]!, IAN [ IAN119427 View Materials ]!, NY [ NY00395795 ]!, NY [ NY00395796 ] GoogleMaps ! • “ Una, 9 km from São José and BR-101 on road to Una, on S side of road in forest ”; 15º03′ S, 39º14′ W; 4 Feb. 1993; J.A. Kallunki et al. 428; CEPEC [ CEPEC00060939 View Materials ]!, HUEFS [ HUEFS017561 View Materials ]!, MBM [ MBM181237 View Materials ]!, NY [ NY00395791 ]!, SPF GoogleMaps ! • ibid.; 20 Jan. 1982; T.S. Santos 3712; CEPEC [ CEPEC00028035 View Materials ] GoogleMaps ! • ibid.; 15º4′15″ S, 39º18′35″ W; 18 Mar. 1999; J.G. Jardim et al. 2064; CEPEC [ CEPEC00087825 View Materials ]! NY [ NY00583368 ]!, SPF GoogleMaps ! • “Estrada São José-Una. Coletas efetuadas no km 9 a partir da BR, Fazenda Santa Rosa”; 8 Oct. 1992; A. M. Amorim 827; CEPEC [ CEPEC00056585 View Materials ]!, HUEFS [ HUEFS013176 View Materials ]!, NY [ NY00395798 ]!, NY [ NY00395797 ]!, RB [ RB00042107 ]!, US [ US 01346589]!, US [ US 01346590] ! • “ 8.8 km a E BR-101, rodovia São José/Una ”; 15°08′ S, 39°15′ W; 28 Oct. 1993; W.W. Thomas 10176; CEPEC [ CEPEC 00059818 View Materials ]!, NY [ NY00395789 ] GoogleMaps !.

Description

Shrubs or trees, 0.5–6 m tall. Leaves chartaceous, petiole 1–5 mm long, lamina 6.3–19(–22) × 2.2–6.6 cm, narrowly elliptic to elliptic, lanceolate to oblanceolate, narrowly oblong or narrowly ovate, both surfaces glabrous, base cuneate to acute, apex acuminate to acute or attenuate, primary vein impressed adaxially and raised abaxially, 8–18 pairs of secondary veins, angles between primary and secondary veins 40– 60°. Inflorescence 2–17-flowered in highly ramified branches, flagelliflorous, inflorescence branches 10–100 cm long or shortened branches ca 4.5 cm long, rarely one-flowered, terminal, bracts caducous, 2.0–7.4 × 0.3–2.8 cm. Flowers with pedicel 2–12 mm long, flower buds 2–8 × 1–2.5 mm, cylindrical with obtuse apex, covered in trichomes. Sepals completely connate, calyx cupuliform, apex truncate, 1.5–4 × 1–4 mm, glabrescent. Petals linear, white, 5–11.5 mm long, densely covered in trichomes, stamens 6, 3–4 × 0.5 mm, carpels 3, 2.5–4 × 0.5 mm. Monocarps 1–3, ellipsoid to narrowly ellipsoid, 8–30 × 2–5 mm, glabrous, green in vivo, sessile, calyx persistent. Seeds 1–2, ellipsoid, 10 × 4–5 mm ( Maas et al. 1986).

Distribution and habitat

Hornschuchia polyantha is endemic to Bahia, where it occurs in lowland tropical moist forest ( Gouvêa et al. 1976; Thomas & Barbosa 2008; Fig. 6 View Fig ).

Phenology

Flowering from February to December, fruiting from May to October.

Preliminary conservation status

Hornschuchia polyantha has an EOO of 3095 km 2 and an AOO of 48 km 2, its habitat is endangered due to deforestation ( Landau et al. 2008). The conservation status is categorized as Endangered, EN B1ab(iii)+2ab(iii), according to IUCN Red List Categories and Criteria ( IUCN 2012).

Notes

The description of H. polyantha has been updated ( Johnson & Murray 1995) in plant habit and size, leaf morphology, flower morphology and dimensions, and fruit dimensions. Hornschuchia polyantha is similar to H. myrtillus , see the note under the latter to differentiate the two species.

MBM

Myanmar, Yangon, Hlawga Park, Forest Department, Biodiversity Museum

C

University of Copenhagen

CEPEC

CEPEC, CEPLAC

NY

William and Lynda Steere Herbarium of the New York Botanical Garden

MBM

San Jose State University, Museum of Birds and Mammals

U

Nationaal Herbarium Nederland

W

Naturhistorisches Museum Wien

J

University of the Witwatersrand

A

Harvard University - Arnold Arboretum

SPF

Universidade de São Paulo

RB

Jardim Botânico do Rio de Janeiro

BR

Embrapa Agrobiology Diazothrophic Microbial Culture Collection

P

Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants

T

Tavera, Department of Geology and Geophysics

S

Department of Botany, Swedish Museum of Natural History

R

Departamento de Geologia, Universidad de Chile

M

Botanische Staatssammlung München

IAN

Embrapa Amazônia Oriental

HUEFS

Universidade Estadual de Feira de Santana