Ipomoea argyreia (Choisy) Meisn. in Martius et al.
|
publication ID |
https://dx.doi.org/10.3897/phytokeys.143.32821 |
|
persistent identifier |
https://treatment.plazi.org/id/254ABF03-C7BF-5B0C-F0AB-8FF209A8AFA0 |
|
treatment provided by |
|
|
scientific name |
Ipomoea argyreia (Choisy) Meisn. in Martius et al. |
| status |
|
38. Ipomoea argyreia (Choisy) Meisn. in Martius et al. View in CoL View at ENA , Fl. Brasil. 7: 246. 1869. (Meisner 1869: 246)
Rivea argyreia Choisy in A.P. de Candolle , Prodr. 9: 327. 1845. (Choisy 1845: 327). Type. BRAZIL. J.B. Pohl s.n. (lectotype BR00005792573, designated here; isolectotypes BR, K, M).
Ipomoea argyreia var. burchellii Hassl. , Repert. Spec. Nov. Regni Veg. 9: 196. 1911. (Hassler 1911: 196). Type. BRAZIL. W.J. Burchell 6700-9 (lectotype BR00005792214, designated here).
Type.
Based on Rivea argyreia Choisy
Description.
Erect subshrub to 1.5 m of grey appearance, stem woody, white-villous above, pubescent below. Leaves sessile, numerous, imbricate, sometimes appearing opposite or verticillate, 2.5-6 × 0.5-2 cm, oblong to oblanceolate, base cuneate, apex acute and mucronate, adaxially minutely tomentellous, abaxially shortly silvery-grey tomentellous. Flowers aggregated above into a terminal racemose inflorescence simple or branched, 5-15 cm long, flowers solitary or in few-flowered pedunculate cymes, peduncles 0.5-2 cm long, tomentellous; bracteoles 4-6 mm, ovate, acute, deciduous; pedicels 3-6 mm, grey-tomentellous; sepals nearly equal, 7-8 × 3-6 mm, ovate to elliptic, grey-tomentellous, inner sepals similar but with broad scarious margins; corolla 3-3.5 cm long, funnel-shaped, pubescent, limb lobed, c. 2 cm diam. Capsules ovoid, 5-9 mm long, glabrous, shortly rostrate; seeds c. 5 × 2.5 mm, black with long silky marginal hairs.
Illustration.
Figure 6A View Figure 6 .
Distribution.
Almost endemic to the Distrito Federal and Goiás State in Brazil. It appears to grow always in campo rupestre from around 800 m to over 1100 m. It is recorded from Mato Grosso in Flora do Brasil 2020 under construction but we have seen no specimen.
BRAZIL. Dist. Fed.: 4 km W of Rio Preto G. Kirkbride 7383a (FTG). Goiás: 7-20 km E of Pireopolis. Serra de Pireneus, M.M. Arbo et al. 3793 (CTES, FTG); 35 km N of Formosa on road to São Gabriel, H.S. Irwin et al. 14198 (NY, FTG); Chapada dos Veadeiros, H.S. Irwin et al. 24670 (NY, FTG); 13 km S of São Joao de Alianca, W.R. Anderson 7581 (NY, FTG); 13 km E of Cristalina, W.R. Anderson 8310 (NY, FTG); Serra Dourada, 20 km S E, of Goiás Velho, H.S. Irwin et al. 11778 (FTG, NY, MO); Serra dos Cristais, 10 km W of Cristalina, 4 March 1966, H.S. Irwin et al. 13464 (FTG, NY); Serra dos Pirineus (Mun. Pienopolis), P.I.Oliveira & W.R. Anderson 465 (MBM, FTG); Mun. Planaltina, 16 km N de São Gabriel, G. Hatschbach & Silva 59993 (CTES, MBM, S). Minas Gerais: Cabeceira Grande, A.A.Santos & J.B. Pereira 1814 (CEN).
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.