Meriania franciscana C.Ulloa & Homeier

Fernandez-Hilario, Robin, Goldenberg, Renato & Michelangeli, Fabián A., 2023, A synopsis of Meriania (Melastomataceae: Merianieae) in Peru, Phytotaxa 602 (1), pp. 1-101 : 33-35

publication ID

https://doi.org/ 10.11646/phytotaxa.602.1.1

DOI

https://doi.org/10.5281/zenodo.8147118

persistent identifier

https://treatment.plazi.org/id/03B887DA-FF99-FF94-FF62-C7BCFE43FA52

treatment provided by

Plazi

scientific name

Meriania franciscana C.Ulloa & Homeier
status

 

10. Meriania franciscana C.Ulloa & Homeier View in CoL View at ENA , Anales Jard. Bot. Madrid 65(2): 383 (2008).

Meriania macrophylla subsp. franciscana (C.Ulloa &Homeier) Humberto Mend. View in CoL ,Acta Bot. Mex.128(e1734): 72(2021).

Type:— ECUADOR. Zamora-Chinchipe: Reserva San Francisco , road Loja-Zamora , ca 35 km from Loja, 1890 m, 03°58’S, 79°04’W, 28 Jul 2007 (fl.), J. Homeier 2625 (holotype: QCNE! [barcode QCNE225593 About QCNE ]; GoogleMaps isotypes: GOET! [barcode GOET011446 View Materials ], LOJA! [barcode 213337 ], M! [barcode M-0274973 ], MO! [barcode MO-2161006 ], NY! [barcode 01287741 ], QCA! [barcode 144072 ]) . ( Figure 28 View FIGURE 28 ).

Comments:— Meriania franciscana belongs to the M. macrophylla complex ( Wurdack 1978, Ulloa Ulloa & Homeier 2008, Bussmann & Paniagua 2012, Fernandez-Hilario et al. 2022), characterized by campanulate corollas, strongly dimorphic stamens and antepetalous stamens with inflated (bulbous) connectives. Meriania bicentenaria , M. franciscana , M. ninakurorum and M. peltata are the only species of this complex occurring in Peru. Within this group M. franciscana can be distinguished by its adaxial appendages (scutum) on the insertion of the petiole with the leaf blade ( Fig. 28D View FIGURE 28 ), glabrous to densely puberulent abaxial leaf blades ( Fig. 28B–C View FIGURE 28 ), lobed calyces, reddish-purple petals, antepetalous stamen connectives with blunt ascending dorsal appendages ( Fig. 28E View FIGURE 28 ) and antesepalous stamen connectives with dorsal appendages as a mere hump ( Fig. 28F View FIGURE 28 ).

The specimen Fernandez-Hilario et al. 2034 collected in Amazonas shares the same morphological characteristics of leaves and inflorescences as the population recorded in Cajamarca. However, it has truncate calyces and antepetalous stamen connectives without dorsal appendages. This difference suggests that the Amazonas population probably corresponds to a different species. Therefore, more material needs to be collected and reviewed before a conclusion can be drawn.

In his review of Meriania for Colombia, Mendoza-Cifuentes (2021) considered that all the species from the M. macrophylla complex (except M. ninakurorum , which was not treated by him) should be recognized as subspecies of a broadly defined M. macrophylla . However, M. franciscana differs from the Colombian taxa from that group, because it does not have bifid descending dorso-basal appendages. Although this feature may be variable within the same inflorescence in some species of the complex ( Mendoza-Cifuentes 2021), none of the Colombian species of the M. macrophylla complex have antepetalous stamen connectives with ascending dorsal appendages, or antesepalous stamen connectives with dorsal appendages as a mere hump, as is the case in M. franciscana . For this reason, we do not consider M. franciscana to be a subspecies of M. macrophylla and recognized it as a separate species.

Distribution and phenology:— Meriania franciscana occurs from southern Ecuador (Zamora-Chinchipe province) to northern Peru (Departments of Amazonas and Cajamarca in montane forests at 1750–2370 m) ( Fig. 9 View FIGURE 9 ). It has been collected in flower in March, November and December, and in fruit in August and November.

Specimens examined:— PERU. Amazonas: Prov. Bongará, Dist. Yambrasbamba , inmediaciones de CP Miraflores, 1980 m, 05°42’13.19”S, 77°55’47.64”W, 10 Nov 2020 (fl., fr.), R. Fernandez-Hilario et al. 2034 ( HOXA!, MOLF!, UPCB!). GoogleMaps Cajamarca: Prov. San Ignacio, Dist. Huarango , CP Selva Andina, camino hacia la captación de agua, 2378 m, 05°03’50”S, 78°43’19”W, 25 Aug 2007 (fr.), J. Perea et al. 2775 ( NY!), GoogleMaps Dist. San José de Lourdes , CP Camana, 1750–1900 m, 05°01’S, 78°54’W, 04 Mar 1997 (fl.), J. Campos & S. Corrales 3393 ( MOLF!, NY!, USM!), GoogleMaps bottom of cerro Picorana, 2100 m, 04°59’25”S, 78°54’05”W, 01 Dec 1998 (fl.), C. Díaz & S. Fernández 10150 ( HUT!, MOLF!, NY!, USM!) GoogleMaps .

HOXA

HOXA

MOLF

MOLF

UPCB

UPCB

USM

USM

HUT

HUT

CP

University of Copenhagen

R

Departamento de Geologia, Universidad de Chile

HOXA

Estación biológica del Jardin Botanico de Missouri

UPCB

Universidade Federal do Paraná

J

University of the Witwatersrand

S

Department of Botany, Swedish Museum of Natural History

USM

Universiti Sains Malaysia

C

University of Copenhagen

HUT

HUT Culture Collection

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Myrtales

Family

Melastomataceae

Genus

Meriania

Loc

Meriania franciscana C.Ulloa & Homeier

Fernandez-Hilario, Robin, Goldenberg, Renato & Michelangeli, Fabián A. 2023
2023
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