Jiménez Fernández, Juan Antonio

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Jiménez Fernández, Juan Antonio

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Jiménez Fernández, Juan Antonio

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Universidad de Murcia. Departamento de Biología Vegetal

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A new species of Chionoloma (Pottiaceae) from Central and South America with a key to Neotropical species of the genus
(BioOne Digital Library, 2017-09-05) Alonso García, Marta; Cano Bernabé, María Jesús; Jiménez Fernández, Juan Antonio; Biología Vegetal
A new species of Chionoloma Dixon, C. fractum M.Alonso, M.J.Cano & J.A.Jiménez, is described from Central and South America (Argentina, Belize, Bolivia, Brazil, Colombia, Ecuador, Panama, Peru and Venezuela). The species is distinguished morphologically by lanceolate or linear leaves, with apices usually broken, leaf margins strongly sinuous, basal marginal cells forming a V-shaped pattern, dorsal surface cells of the costa quadrate-round and papillose toward apex, costa percurrent or excurrent in a short mucro and central strand present. Drawings and light microscope photographs of the new species are provided. Moreover, the principal distinctive characters that separate it from the nearest species of Chionoloma are discussed and a key to Neotropical species of the genus is provided.
Open Access
Novedades corológicas para la flora briofítica ibérica. XI
(Universidad de Murcia. Servicio de Publicaciones, 2026) Cano Bernabé, María Jesús; Mellado-Díaz, Andrés; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
Se dan a conocer 26 novedades corológicas provinciales correspondientes a 17 taxones de briófitos en España, recolectados principalmente en diferentes campañas de campo realizadas entre los años 2023 y 2025. Destaca el hallazgo de Neckera cephalonica en Navarra y de dos nuevas localidades de Entosthodon mouretii, que constituyen nuevas citas para las provincias de Cáceres y Toledo. Además, se aporta una nueva localidad para Pyramidula tetragona especie catalogada como amenazada en Europa.
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Pseudosymblepharis perlongifolia (Bryophyta, Pottiaceae), a neglected species from Malaysia new for América
(Magnolia Press, 2014-08-27) Alonso García, Marta; Cano Bernabé, María Jesús; Jiménez Fernández, Juan Antonio; Biología Vegetal
The Asian moss Pseudosymblepharis perlongifolia, previously known only from Malaysia, is reported for the first time for America on the basis of several collections from Maricao (Puerto Rico). The principal distinctive characters that separate it from the nearest species of Pseudosymblepharis and related genera are discussed. The species is described and illustrated.
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New synonyms and typifications in Chionoloma tenuirostre (Pottiaceae, Bryophyta)
(Magnolia Press, 2018-10-24) Alonso García, Marta; Cano Bernabé, María Jesús; Jiménez Fernández, Juan Antonio; Biología Vegetal
Names within Chionoloma tenuirostre are evaluated for proper taxonomic position. A total of 20 names are treated as synonyms, among them, 10 are here synonymised for the first time (Hyophila acutiuscula, Leptodontium subintegrum, Oxystegus cylindricus var. filifer, Trichostomum angustifolium, T. fallax, T. fallax f. minutum, T. fragilifolium, T. prionodon, T. siamense and T. uncinifolium) and three names are excluded from the synonymy (Barbula wollei, Tortula cylindrotheca and Trichostomum burmense). In order to maintain nomenclatural stability, the typification of 12 names is discussed and lectotypes are designated.
Open Access
Integrative taxonomy reveals hidden diversity in the Aloina catillum Complex (Pottiaceae, Bryophyta)
(MDPI, 2024-02-02) Martínez, Mónica; Hedenäs, Lars; Rodríguez, Omar; Cano Bernabé, María Jesús; Gallego Morales, María Teresa; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
Aloina catillum is a variable moss typical of xerophytic environments in the Neotropics, characterized against other closely allied Aloina species with well-differentiated leaf border by its setae twisted to the left throughout. In order to clarify its variability and its relationships with the allied species with differentiated leaf border A. brevirostris, A. obliquifolia, and A. rigida, we performed an integrative study including sequence data from four markers (nuclear ITS, plastid atpB-rbcL, trnG, trnL-F), morphometry, and species assembling by automatic partitioning (ASAP) algorithm. Our data suggest that A. catillum consists of at least three species: A. calceolifolia (an earlier name for A. catillum), and two species described here as a new, A. bracteata sp. nov. and A. limbata sp. nov. This latter species includes the specimens previously identified as A. obliquifolia from South America. Additionally, some morphological and molecular variability was also detected in A. limbata, but was not consistent enough to be recognized taxonomically. The study supports the presence of A. brevirostris in the Neotropics and A. rigida is tentatively excluded from South America. Full descriptions of the A. catillum s.l. species and a diagnostic key to this complex in South America are provided.
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Hymenostylium chapadense M.J.Cano & J.A.Jiménez (Pottiaceae), a new species from Brazil and its phylogenetic position based on molecular data
(Taylor and Francis Group, 2022-03-18) Martínez, Mónica; Cano Bernabé, María Jesús; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
In the context of a taxonomic revision of the tribe Pleuroweisieae in South America, we studied a specimen of Hymenostylium that did not match any previously known species of this genus in America. Here we present our arguments for recognising this moss as a new species.The morphology of the potential new species was compared with that of the species of Hymenostylium presently recognised. A phylogenetic analysis based on the nuclear ITS and plastid rps4 regions was performed to investigate relationships between the new species and closely related taxa. Based on morphological and molecular data, we describe this new species from Brazil, Hymenostylium chapadense M.J.Cano & J.A.Jiménez. The species is strikingly distinguished by a stem with central strand and hyalodermis, oblong-ligulate to oblong-elliptical leaves that are when dry slightly crisped in the upper part and usually constricted just above the base and recurved on one side in the lower third, with uni- to bistratose margins, obtuse apex, costa wide and ending below the apex or percurrent with ventral and dorsal surface cells of the costa differentiated as an epidermis, and middle laminal cells usually with a simple, coarse, central papilla. Our molecular study placed H. chapadense as sister to H. hildebrandtii (Müll.Hal.) R.H.Zander. Possible confusion with the latter species and other closely related taxa is discussed. A key to the South American species of Hymenostylium is provided.
Embargo
Bryoerythrophyllum sollmanianum (Pottiaceae), a new moss species from the Sino-Himalayan region
(The American Bryological and Lichenological Society, 2019-07-12) Shevock, James; Cano Bernabé, María Jesús; Jiménez Fernández, Juan Antonio; Biología Vegetal
Bryoerythrophyllum sollmanianum J.A.Jiménez, M.J.Cano & Shevock is described and illustrated as a new species from the Sino-Himalayan region of China, Nepal and India. The species is corticolous, and easily distinguished from all its congeners in having stems with cluster of deciduous flagellate branchlets. Additionally, it is characterized by its lingulate leaves with apiculate apices, plane and regularly dentate margins above midleaf, costa ending below the apex, papillose basal cells that are not differentiated from the upper cells, and a rudimentary peristome. Its distinction from, and relationships with, similar species within the genus are discussed. Distribution of the new species is mapped.
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Pseudocrossidium exiguum M.J.Cano & J.A.Jiménez (Pottiaceae), a new species from South America
(Taylor & Francis Group, 2015-03-26) Alonso García, Marta; Cano Bernabé, María Jesús; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
A new species of Pseudocrossidium R.S.Williams, P. exiguum M.J.Cano & J.A.Jiménez, is described from South America (Argentina, Brazil and Peru). The species is distinguished morphologically by its lingulate to oblong-ovate leaves, leaf marginal cells not or scarcely differentiated from inner, costa ending below apex or percurrent, and semicircular to elliptical in cross-section with two guide cells, scarcely differentiated perichaetial leaves and peristome of short and straight teeth. Drawings and light microscope photographs of the new species are provided. The principal distinctive characters that separate it from the nearest species of Pseudocrossidium and related genera are discussed.
Metadata only
Revisión taxonómica del genero "Didymodon" Hedw, (Pottiaceae, Musci) en la Cuenca Mediterránea, Macaronesia, Sudoeste y Centro Asiático / Juan Antonio Jiménez Fernández ; dirección, Rosa María Ros Espín, María Jesús Cano Bernabé y Juan Guerra Montes.
(Murcia : Universidad de Murcia, Departamento de Biología Vegetal (Botánica),, 2003) Jiménez Fernández, Juan Antonio
Embargo
Didymodon edentulus (Bryophyta, Pottiaceae), a new Andean species from the Cordillera Occidental in Peru
(Schweizerbart Science Publishers, 2015-05-01) Alonso García, Marta; Cano Bernabé, María Jesús; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
Didymodon edentulus J.A. Jiménez & M.J. Cano, is described and illustrated as a new Andean species from the Cordillera Occidental in north-central Peruvian departments of Ancash, La Libertad and Lima. It is characterized mainly by its appressed leaves when dry, plane margins above midleaf, smooth laminal cells, oblate and transversely thick-walled marginal basal cells, differentiated perichaetial leaves and gymnostomous capsules. Its distinction from, and relationships with some closely related species within the genus are discussed.