Hornschuchia obliqua Maas & Setten
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publication ID |
https://doi.org/ 10.5852/ejt.2022.828.1859 |
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DOI |
https://doi.org/10.5281/zenodo.6823789 |
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persistent identifier |
https://treatment.plazi.org/id/03C887E4-0117-FFD4-FDE0-FB73FA8C79EE |
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treatment provided by |
Felipe |
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scientific name |
Hornschuchia obliqua Maas & Setten |
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Hornschuchia obliqua Maas & Setten View in CoL
Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, Series C: Biological and Medical Sciences 91 (3): 260, figs 18–19 ( Maas et al. 1988).
Type : BRAZIL – Bahia • “ Cairu, Estrada Cairu-Ituberá, 8 km S de Cairu ”; [13°34′22.4″ S, 39°03′22.6″ W]; 26 Jul. 1981; A.M. Carvalho 798; holotype: CEPEC [ CEPEC00024357 About CEPEC ]!; isotypes: CEPEC [ CEPEC00050811 About CEPEC ]!, NY [ NY00008356 ]!, U [ U0000334 ] GoogleMaps !.
Material examined
BRAZIL – Bahia •“ Ilhéus, Distrito de Castelo Novo, fazenda Almada , coletas no km 4na estrada para estação experimental do Almada e o povoado de Ribeira das Pedras, entrada no km 20 da rodovia Ilhéus/Uruçuca ”; [14°39′18.7″ S, 39°11′16.4″ W]; alt. 110 m; 8 Feb. 1996; L.A.M. Silva 3355; CEPEC [ CEPEC00070901 About CEPEC ] GoogleMaps ! • “ Uruçuca, Distrito de Serra Grande, 7.3 km na estrada Serra Grande/Itacaré, Fazenda Lagoa do Conjunto Fazenda Santa Cruz ”; 14°25′23″ S, 39°3′42″ W; 11–21 Sep. 1991; A.M. de Carvalho et al. 3602; CEPEC [ CEPEC00052187 About CEPEC ]!, HUEFS [ HUEFS013892 About HUEFS ]!, MBM [ MBM158839 View Materials ]!, NY [ NY00395805 ]!, US [ US01346587 ] GoogleMaps ! • ibid.; 14°25′24″ S, 39°3′38″ W; 15 Nov. 1995; W.W. Thomas et al. 11019; ALCB [ ALCB004564 About ALCB ]!, CEPEC [ CEPEC00068119 About CEPEC ]!, MBM [ MBM194749 View Materials ] GoogleMaps ! • ibid.; 14°25′ S, 39°01′ W; 7 Sep. 1991; A.M. de Carvalho et al. 3649; CEPEC [ CEPEC00052143 About CEPEC ]!, HUEFS [ HUEFS013893 About HUEFS ]!, MBM [ MBM158840 View Materials ]!, NY [ NY00395807 ] GoogleMaps ! • ibid.; 1–12 Jul. 1991; W.W. Thomas 8041; NY [ NY00395804 ] GoogleMaps ! • ibid.; 1–12 Jul. 1991; A.M. de Carvalho 3350; ALCB [ ALCB004359 About ALCB ]!, CEPEC [ CEPEC00052214 About CEPEC ]!, NY [ NY00395806 ]!, RB [ RB01351907 ]!, US [ US01346588 ] GoogleMaps ! • ibid.; 6 Oct. 1992; A.M. Amorim 794; CEPEC [ CEPEC00056662 About CEPEC , NY [ 00395802 ]!, NY [ NY00395803 ]!, RB [ RB00042097 ]!, US [ US01346586 ] GoogleMaps ! • ibid.; 1–12 Jul. 1991; W.W. Thomas 6933; CEPEC [ CEPEC0005328 About CEPEC ] GoogleMaps ! • ibid., “ 7 km na estrada Serra Grande/Itacaré, local do Inventário Florestal ”; 10 Oct. 1995; A.M. de Carvalho et al. 6132; CEPEC [ CEPEC00066687 About CEPEC ]!, MBM [ MBM187066 View Materials ]!, NY [ NY00395801 ] GoogleMaps ! • ibid., “ rodovia BA-001 Ilhéus/ Itacaré, ca 4.5 km do distrito de Serra Grande ”; 5 Jul. 2001; J.G. Jardim 3721; NY [ NY00684332 ] GoogleMaps !.
Description
Shrubs or trees, 1.5–8 m tall. Leaves chartaceous, petiole 1–3 mm long, lamina 12–31.5 × 3.6–10.3 cm, oblanceolate to narrowly oblong or narrowly elliptic, both surfaces glabrous, base asymmetric or cuneate, apex acuminate, acute, attenuate, primary vein impressed adaxially and raised abaxially, 9–18 pairs of secondary veins, angles between primary and secondary veins 30–45°. Inflorescence 3–8-flowered, in shortened, highly ramified branches, terminal or supra-axillary, bracts rarely persistent, 1.0–1.3 × 0.4–0.5 cm. Flowers with pedicel 3–30 mm long, flower buds 3–6 × 1–2 mm, cylindrical with obtuse apex, covered in trichomes. Sepals completely connate, calyx cupuliform, apex truncate, 2–4 × 1–4 mm, glabrescent. Petals linear, white, 7–7.5 mm long, glabrous, stamens 6, 2.5–3 × 0.5 mm, carpels 3, 2.4–3 × 0.5 mm. Monocarps 1–2, fusiform, 15–45 × 5–8 mm, densely covered in trichomes, immature monocarps whitish in vivo, sessile. Seeds 1–2.
Distribution and habitat
Hornschuchia obliqua is endemic to Bahia, where it occurs in lowland tropical moist forest ( Gouvêa et al. 1976; Thomas & Barbosa 2008; Fig. 5 View Fig ).
Phenology
Flowering from February to October, fruiting from July to November.
Conservation status
Endangered, EN B1ab(i,ii,iii)+2ab(i,ii,iii) ( Amorim et al. 2020b). Hornschuchia obliqua is only known from three localities. It has not been collected in 19 years.
Notes
Hornschuchia obliqua and H. santosii have 3–12-flowered inflorescences, which are axillary, terminal ( Fig. 4D View Fig ) or leaf-opposed. However, H. obliqua differs from H. santosii by its cylindrical floral bud (vs conical), fusiform monocarp, 1.3–6 mm wide, densely covered in trichomes and whitish in vivo (vs globose, 16–19 mm wide, glabrous, green in vivo; Fig. 4E View Fig ). The description of H. myrtillus has been updated ( Johnson & Murray 1995) with information regard the plant size and fruit dimensions.
| CEPEC |
CEPEC, CEPLAC |
| NY |
William and Lynda Steere Herbarium of the New York Botanical Garden |
| U |
Nationaal Herbarium Nederland |
| HUEFS |
Universidade Estadual de Feira de Santana |
| MBM |
San Jose State University, Museum of Birds and Mammals |
| ALCB |
Universidade Federal da Bahia, Campus Universitário de Ondina |
| RB |
Jardim Botânico do Rio de Janeiro |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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SubClass |
Magnoliidae |
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Order |
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Family |
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SubFamily |
Annonoideae |
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Tribe |
Bocageeae |
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Genus |