Guerra Montes, Juan

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Guerra Montes, Juan

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Guerra Montes, Juan

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Universidad de Murcia. Departamento de Biología Vegetal

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Open Access
Referencias bibliográficas: Syllabus der Pflanzenfamilien. Part. 3.Bryophytes and seedless vascular plants/ A. Engler’s
(Murcia : Universidad de Murcia, Servicio de Publicaciones, 2010) Guerra Montes, Juan; Departamentos y Servicios::Departamentos de la UMU::Biología Vegetal
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.
Open Access
Novedades corológicas para la flora briofítica ibérica. VIII
(Universidad de Murcia, ) Cabezudo, Baltasar; Tamajón, Rafael; Cano Bernabé, María Jesús; Guerra Montes, Juan
A partir del estudio de muestras recolectadas y revisadas en el marco del Proyecto Flora Briofítica Ibérica (FBI), y el estudio briofí- tico que estamos realizando en la Sierra de las Nieves (Málaga) aportamos un total de 32 novedades corológicas provinciales para España y dos para Portugal. A destacar el hallazgo de Scorpidium scorpioides, una especie catalogada como amenazada en España, cuya distribución se extiende al alto valle del Ebro y dos nuevas localidades de Stegonia latifolia, una especie considerada como vulnerable.
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.
Open Access
New data on distribution, morphology and habitat of brachythecium (Schimp.) Schimp. (Brachytheciaceae, Bryophyta) in the Iberian Peninsula.
(Murcia. Universidad de Murcia. Servicio de Publicaciones, 2009) Orgaz Álvarez, José David; Cano Bernabé, María Jesús; Guerra Montes, Juan; Departamentos y Servicios::Departamentos de la UMU::Biología Vegetal
En base a la revisión de nuevos ejemplares, se aportan nuevos datos sobre morfología, hábitat y distribución de Brachythecium mildeanum (Schimp.) Schimp., especie que ha sido usualmente confundida en la Península Ibérica con Brachythecium rutabulum (Hedw.) Schimp. y B. rivulare Schimp.
Open Access
Lewinskya laevigata (J.E. Zetterst.) F. Lara et al. (Bryophyta, Orthotrichaceae) en Sierra Nevada (España)
(Universidad de Murcia, 2019) Guerra Montes, Juan
Lewinskya laevigata (J.E. Zetterst.) F. Lara et al., un musgo árticoalpino, muy raro en el área mediterránea, se cita por segunda vez en la Península Ibérica. La muestra ha sido recolectada en los Peñones de San Francisco (Sierra Nevada, España).
Open Access
A molecular approach to the phylogeny of the moss genus Pseudocrossidium (Pottiaceae, Bryopsida) and its taxonomic implications
(Wiley, 2022-08-12) Cano Bernabé, María Jesús; Gallego Morales, María Teresa; Guerra Montes, Juan; Jiménez Fernández, Juan Antonio; Biología Vegetal
Pseudocrossidium is a genus of 21 species belonging to the Pottiaceae with the highest concentration of taxa and morphological variation found in South America. To investigate the evolutionary relationships among the species of Pseudocrossidium and other members of the Pottioideae, molecular phylogenetic reconstructions, using the nuclear ITS1‐5.8S‐ITS2, and the plastid atpB‐rbcL, trnG, and trnL‐F, has been performed because this genus has only been partially tested using molecular markers. Bayesian and maximum likelihood topologies show that the genus, as presently circumscribed, is polyphyletic. Consequently, the circumscription of Pseudocrossidium is amended and numerous taxonomic changes resulting from the molecular, morphological, and nomenclatural studies are proposed. The phylogenetic and morphologically divergent Pseudocrossidium mendozense is renamed as Gertrudiella mendozensis. Pseudocrossidium linearifolium and P. porphyreoneurum are representatives of the new genera Barbulastrum and Helicobarbula, respectively. Pseudocrossidium carinatum and P. santiagense are accommodated in a new genus Austrobarbula. Aloinella, nested in a paraphyletic Pseudocrossidium, is maintained at generic rank, apparently derived from Pseudocrossidium. Barbula integrifolia, B. riograndensis, and Tortula jaffuelii are transferred to Pseudocrossidium. The remaining species of Pseudocrossidium are maintained in this genus, pending further studies. Conflicts of the trees observed could be evidence of interspecific or intergeneric gene flow in various lineages in the Pottioideae.
Open Access
Novedades corológicas para la flora briofítica ibérica. V
(Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2013) Orgaz Álvarez, José David; Ríos Poveda, Diana; Cano Bernabé, María Jesús; Guerra Montes, Juan; Biología Vegetal
A partir del estudio de muestras recolectadas y revisadas en el marco del Proyecto Flora Briofítica Ibérica (FBI), se aportan un total de 15 novedades corológicas provinciales para España y 1 para Portugal. A destacar la segunda localidad conocida en el continente europeo de Tetrastichium fontanum (Mitt.) Cardot.
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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.