Contributions to the moss flora of Uruguay: the genus Pohlia (Bryophyta, Bryales), a new record (original) (raw)
Related papers
2002
North American Platylomella lescurii (Sull.) Andrews has a limbidium that is 2±4-stratose in the upper leaf, whereas the margin is unistratose below. In P. lescurii the margin is also denticulate or ®nely so in large parts, the median laminal cells are smaller and shorter than in V. salina (6.5± 38.0  4.0±8.5, vs. 19.0±71.5  6.5±11.0 mm), it has paraphyllia, and the axillary hairs have 3±6 upper cells. Vittia salina was collected in two high altitude rivulets with fast running, saline water. It grew on rocks and banks, mostly well below the water surface at the time of collection. However, the collections were made in the rainy season and the areas covered by V. salina are probably above the water surface for most of the year, although always in the splash zone. The general area where V. salina was collected is characterized by a high altitude mountain climate, thus cold and very dry. The relative air humidity is also very low. The vegetation consists of an open steppe, dominated by tussocks of Stipa chrysophylla E. Desv. (`coiro n amargo'), S. frigida Phil. (`vizcachera'), and Adesmia spp. Areas close to water courses, which are rare and almost all of them saline, are dominated by Oxychloe andina Phil. Despite the presence of running water, mosses are rare due to the high salt content of the water. In the holotype locality ± Las Lozas, a streamlet of highly saline water ± the only mosses besides V. salina were Hennediella heimii (Hedw.) R.H.Zander and Pohlia integra (Cardot) A.J.Shaw. These grew at tussock bases outside the splash zone and were common around streams above 3000 m a.s.l. In the other locality ± Rumi Rayana, located at an altitude 700 m below the former ± the stream is wider, still highly saline, and the aquatic species Drepanocladus aduncus (Hedw.) Warnst., D. longifolius (Mitt.) Paris, and Bryum sp. were found. Vittia pachyloma, the other member of the genus occurring in southern South America, grows on rocks and boulders in brooks and rivers, in waterfalls, and sometimes also on wet rocks between 2600±4050 m in the Andes. According to Ochyra (1987b) it generally grows in acidic habitats. The only thing known about Limbella bartlettii is that it grows in running water. Platylomella lescurii grows in brooks, waterfalls, or on clis with dripping water, both in calcareous and acidic habitats (Crum, 1972).
New record and additions to the argentinean bryophyte flora
Darwiniana, 2014
Steereella lilliana is reported as a new record for the bryophyte flora in Argentina and South America. Furthermore, the distribution of Frullania brasiliensis in Argentina, previously known only from Misiones and Salta, is expanded to the provinces of Tucuman and Cordoba. Additionally, Stephaniella paraphyllina, is new to the province of San Luis, collected in Sierra de Comechingones, and this represents its southernmost distribution. Brief comments about morphological characters, keys to related species in Argentina, as well as habitat details are given.
A taxonomic revision of the propaguliferous species of Pohlia (Bryaceae, Bryophyta) in Latin America
A taxonomic revision of the propaguliferous species of Pohlia (Bryaceae, Bryophyta) in Latin America. A taxonomic and descriptive study of the propaguliferous species of the genus Pohlia with axillary and rhizoidal bulbils from Central and South America is presented. Six species with axillary gemmae and one with rhizoidal tubers are recognized in the study area. Pohlia richardsii from Costa Rica is a new synonym of P. apolensis. P. longipedicellata from Venezuela and P. verrucosa from Bolivia are new synonyms of P. papillosa. The identity of Bryum anisodontacum, nom. nud., from Chile is clarified and this name is placed in synonymy with P. papillosa. New lectotypes are proposed. Taxonomically important characters of American Pohlia species are reviewed.
Check List, 2020
Located in southwestern Maranhão, the Parque Nacional da Chapada das Mesas (PNCM), with an extent of about 160,046 ha, is completely inserted in the Cerrado phytogeographic domain. The topography is characterized by a plateau formation consisting of steep hills and medium-altitude mountains with flat tops, which give the PNCM its name. We present an annotated checklist of the mosses that occur in the PNCM. Our checklist includes 26 species of pleurocarpous mosses distributed in 10 families and 22 genera and two species of cladocarpous mosses of the family Orthotrichaceae. The most species-rich families of pleurocarpous mosses were Sematophyllaceae (7 spp.), Pylaisiadelphaceae (6 spp.), and Stereophyllaceae (4 spp.). Eleven species are recorded for the first time from Maranhão and three species are recorded for the first time in the northeast region of Brazil. Taxithelium pluripunctatum (Renauld & Cardot) W.R. Buck and Trichosteleum glaziovii (Hampe) W.R. Buck, are recorded for the first time from Maranhão and the Cerrado phytogeographic domain. Our results expand the knowledge of the Brazilian bryoflora and add distribution data for a number of species in Maranhão and the northeast region.
Pohlia section Apalodictyon (Bryaceae, Bryophyta) in Central and South America
Pohlia section Apalodictyon is taxonomically studied for Central and South America. Three species are recognized in the study area (Pohlia lonchochaete, P. magnifica and P. wahlenbergii). Mniobryum bolivianum from Bolivia is proposed as a new synonym of P. wahlenbergii. Three new lectotypes are designated. We provide the first illustrations of P. lonchochaete and P. magnifica, two neglected species from southern South America and describe and illustrate all species observed. Distribution maps of the taxa in Latin America are presented.
New records of mosses from the Dry Chaco forest of Santiago del Estero, Argentina
Boletin de la Sociedad Argentina de Botanica, 2020
Background and aims: The bryophyte flora of Argentina is currently under study, nevertheless, there are still extensive areas unexplored, such as Santiago del Estero with only three records of bryophytes to the entire region. The aim of this work was to contribute to the knowledge of the moss flora of Santiago del Estero province, through the collection of samples in Copo National Park and surroundings. M&M: The specimens were collected in the Copo National Park and surroundings, processed and studied according to traditional techniques for bryophytes. Microscopic characters were observed with stereoscopic and light microscopy. A list of the species found is presented, with comments on the differentiating characters, habitat and distribution. Results: The following moss taxa were found to be new records for the province: Aloina rigida; Dimerodontium balansae; Didymodon umbrosus; Fabronia ciliaris; Macrocoma tenuis subsp. sullivantii; Pseudocrossidium arenicola; P. linearifolium; Ste...
New records and range extension of Bryophytes for Paraguay
Cryptogamie, Bryologie, 2017
We present the first records for Paraguay for 24 species of bryophytes (one hornwort, eight liverworts and 15 mosses). Another 47 new regional records enhance the list of bryodiversity for the departments of Alto Paraguay, Alto Paraná, Amambay, Caaguazú, Canindeyú, Central, Concepción, Cordillera, Paraguarí, Presidente Hayes and one new record for the capital district, Asunción.