TL;DR: The bryophyte Red List of Serbia and Montenegro comprises 254 species (212 mosses and 42 liverworts) and 36 species are too data deficient to place them in any category, but potentially with further investigation will enter one of the threat categories in the Red List.
Abstract: The bryophyte Red List of Serbia and Montenegro comprises 254 species (212 mosses and 42 liverworts). Serbia and Montenegro have 39.50% of threatened bryoflora. One moss species is considered as extinct (Encalypta serbica Katic). In the threatened categories there are 20 critically endangered (CR), 35 endangered (EN) and 100 vulnerable (VU) bryophyte species. Seventy-two species are considered to be of low risk, and 36 are too data deficient to place them in any category, but potentially with further investigation will enter one of the threat categories in the Red List.
TL;DR: The high (137)Cs activities found in mosses 20 years after Chernobyl suggest that these primitive plants are effective, suitable and inexpensive biological detectors of the distribution and burden of radionuclide fallout pattern.
TL;DR: Richardson and Ioannides as discussed by the authors discussed the close morphological similarities of some Silurian and early Devonian miospore genera to those from mosses and liverworts.
Abstract: Richardson & Ioannides (1973) speculated on possible bryophytic affinities of some Silurian dispersed spores. Later, at the International Palynological Congress in Cambridge (1980) I discussed the close morphological similarities of some Silurian and early Devonian spores to those from mosses and liverworts. In particular the dispersed miospore genera Streelispora and Aneurospora are similar to the spores of the extant liverwort Anthoceras and spores of some species of the extant moss genus Encalypta to fossil spores of Emphanisporites . If such similarities are indicative of affinity then many of the Silurian spores may have belonged to early bryophytic ancestors. As mosses and liverworts are not usually preserved as fossils, such an explanation would help to explain the major discrepancy between the number of dispersed Silurian and Lower Devonian miospore species and the few species of land plants known.
TL;DR: The eight North American species of Encalypta can be readily distinguished on the basis of spore morphology as viewed in the scanning electron microscope as well as those of Bryobrittonia pellucida, which is easily distinguished from allEncalypta species in having mammillose leaf cells.
Abstract: The eight North American species of Encalypta can be readily distinguished on the basis of spore morphology as viewed in the scanning electron microscope. Descriptions are given of the spores of ea...