Diversity and conservation of Pottiaceae (Pottiales) in the Atlantic Rainforest

Abstract

The taxonomy, diversity and conservation status of all species of the family Pottiaceae in the Atlantic Rainforest of Rio de Janeiro State in southeastern Brazil are presented. The Atlantic Rainforest is a globally recognized biodiversity hotspot. The treatments are based on field expeditions and studies of herbarium collections. Twenty eight species from 18 genera are discussed. A key to the genera and species is provided, with comments on their distributions and altitudinal ranges, with illustrations and evaluation of the conservation status.

Sex‐specific differences in reproductive life‐history traits of the moss Weissia jamaicensis

“…Weissia jamaicensis is a dioicous moss found in Africa, North America, and the Neotropics, recurrently without sporophytes (Müller et al, 2018). In Brazil, W. jamaicensis is found on roadside rocks and riverbanks, in altitudes of 100–800 m, in Savanna and Atlantic Rainforest (Costa, 2015) (Figure 1).…”

Estudo das briófitas do Bosque Sagrado da Guarita, Bom Princípio do Piauí, Piauí, Brasil

“…Na identificação do material botânico foram utilizadas chaves de identificação, descrições de literatura especializada, além de ilustrações e fotografias. Os espécimes foram identificados adotando Yano (1992), Castro et al (2002) Câmara (2008, Oliveira (2008), Yano e Peralta ( 2009), Vilas Boas-Bastos e Bastos ( 2009), Oliveira e Bastos (2009; 2010), Bordin (2011), Costa (2015) e confirmadas com especialistas da área de briologia.…”

“…,Pôrto e Bezerra (1996),Castro et al (2002), Oliveira e Alves (2007),Câmara (2008),Oliveira (2008), Yano e Peralta (2009),, Oliveira e Bastos (2009; 2010),Yano (2010),Bordin (2011),Costa (2015) e Site Flora do Brasil 2020 (em construção).Após o estudo, o material botânico foi incorporado ao Herbário Delta do Parnaíba/HDELTA da Universidade Federal do Piauí-UFPI/Campus Ministro Reis Velloso-CMRV.…”

A Preliminary Study on Morphological Variations from Wet and Dry Microhabitats of Hyophila involuta (Pottiaceae, Bryophyta): A Case Study from Chiang Mai Province, Northern Thailand

“…Samples of cement moss (145 packets) were collected from two distinct microhabitats including aquatic microhabitats (shaded-wet rocks in streams or waterfalls, Figure 1C) and terrestrial microhabitats (open-dry soils or rocks, Figure 1H) (see Appendix). The specimens were identified using the taxonomic keys in Gangulee (1972), Eddy (1990), Zander (1993), Li et al (2001), Virendra & Reesa (2009) Costa (2015, and Deora & Deora (2017). All specimens were then collected in paper bags and dried at room temperature.…”

“…The distinctive characters of the species described in several taxonomic treatments and floras include spathulate-lanceolate leaves with serrulate to denticulate leaf margins that are strongly involute when dry, bulging-mamillose upper laminal cells, well-differentiated leaf bases, costae with two well-developed stereid bands in cross section, stems with a well-differentiated central strand, and cylindrical eperistomate capsules (Gangulee, 1972;Eddy, 1990;Zander 1993;Li et al, 2001;Virendra & Reesa, 2009;Costa, 2015). During our excursions in Doi Suthep-Pui National Park, we found an interesting humid ecotype of cement moss with large stems, up to 5 cm height including 4-5 (8) branches, and vegetative leaf length up to 4 mm.…”