Meriania callosa Rob.Fern., R.Goldenb.& Michelang.

Fernandez-Hilario, Robin, Goldenberg, Renato & Michelangeli, Fabián A., 2023, A synopsis of Meriania (Melastomataceae: Merianieae) in Peru, Phytotaxa 602 (1), pp. 1-101 : 23

publication ID	https://doi.org/10.11646/phytotaxa.602.1.1
DOI	https://doi.org/10.5281/zenodo.8142010
persistent identifier	https://treatment.plazi.org/id/03B887DA-FFAF-FFA0-FF62-C6EFFD6AF84C
treatment provided by	Plazi (2023-07-13 07:58:34, last updated 2024-11-26 02:50:34)
scientific name	Meriania callosa Rob.Fern., R.Goldenb.& Michelang.
status

Treatment

5. Meriania callosa Rob.Fern., R.Goldenb.& Michelang. View in CoL , Willdenowia52(1): 49 (2022).

Type:— PERU. Amazonas: Prov. Bongará, Dist. Yambrasbamba, ruta desde CP Santa Rosa hacia bosque El Toro , 1950 m, 05°40’07.98”S, 77°55’30.04”W, 11 Nov 2020 (fl.), R. Fernandez-Hilario, W. Chuquitucto & A. Wong 2055 (holotype: MOLF! [barcode 000007 ]; GoogleMaps isotypes: HOXA! [accession no. 077833 ], KUELAP! [accession no. 971 ], MOLF! [barcode 000008 ], NY! [barcode 04239399 ], UPCB! [accession no. 99412 ]) . ( Figures 17–18 View FIGURE 17 View FIGURE 18 ).

Comments:— This species is distinguishable by the combination of nodes with interpetiolar flaps (0.5–3 mm long) ( Fig. 17D View FIGURE 17 ), glabrous hypanthia and calyces, calyces with callose dorsal projections ( Fig. 17H View FIGURE 17 )), spreading, fuchsia corollas, isomorphic stamens, stamen connectives with two appendages ( Fig. 17E View FIGURE 17 ), one triangular descending dorso-basal appendage, and other dorsal appendage as a mere hump (rarely inconspicuous). Among Peruvian species, M. callosa most closely resembles M. zunacensis but differs by the projections on the insertion of the petioles with the leaf blades [absent vs. present (scutum)], petiole length (10–22 mm vs. 25–50 mm), and the dorsal projections on calyces (callose vs. absent). A detailed comparison of M. callosa with other related species can be found in Fernandez-Hilario et al. (2022).

Distribution and phenology:— Meriania callosa is endemic to northern Peru (Department of Amazonas) and grows in montane forests at 1880–1970 m ( Fig. 9 View FIGURE 9 ). It has been collected in flower in April and November, and fruit in August and November.

Specimens examined:— PERU. Amazonas: Prov. Bongará, Dist. Yambrasbamba, ruta desde CP Santa Rosa hacia bosque El Toro , 1970 m, 05°40’09.22”S, 77°55’30.05”W, 11 Nov 2020 (fl. bud, fr.), R. Fernandez-Hilario et al. 2056 ( HOXA!, MOLF!, NY!, UPCB!); GoogleMaps Prov. Rodríguez de Mendoza, Dist. Mariscal Benavides , CP Izcuchaca , 1880 m, 06°19’40”S; 77°31’05”W, 30 Aug 1998 (fr.), R. Vásquez & J. Campos 25339 ( NY!), GoogleMaps same locality, 11 Apr 2001 (fl.), H. van der Werff et al. 16941 ( NY!, USM!) GoogleMaps .

References

Fernandez-Hilario, R., Rojas, R., Lajo, L., Pillaca-Huacre, L., Wong, A. A., Paredes-Burneo, D., Villanueva-Espinoza, R., Michelangeli, F. A. & Goldenberg, R. (2022) Nine new species and new country recorded for Meriania (Melastomataceae) from Peru. Willdenowia 52: 39 - 74. https: // doi. org / 10.3372 / wi. 52.52103

Figures

FIGURE 9. Distribution map of M. acida, M. callosa, M. dazae, M. drakei, M. franciscana, M. juanjil and M. peltata.

FIGURE 17. Meriania callosa. A. Terminal fertile branch with inflorescence. B. Leaf blade, abaxial view. C. Detail of the abaxial leaf surface. D. Detail of the interpetiolar flap. E. Stamen, lateral view. F. Fruit. G. Longitudinal section of the flower with the petals and stamens removed. H. Flower bud. A from H. van der Werff et al. 16941; B–H from R. Fernandez-Hilario et al. 2055. Drawing by Leticia Lajo (G).

FIGURE 18. Meriania callosa. A. Leaf blade, abaxial view. B. Inflorescence with flower buds. C. Flower at anthesis, lateral view. D. Flower at anthesis, apical view. A–D from R. Fernandez-Hilario et al. 2055. Photos by Robin Fernandez. Reproduced with permission from Willdenowia.