New bryophyte records. 6

The bryoflora is becoming impoverished in many countries, but they are an important group of plants for the sustainability of society. The present paper studies the bryophytes from Ibirapuera Park, which has heterogeneous forested areas, among others where buildings predominate, beside stream and lakes, in Sao Paulo city. The material totals 688 exsicatas deposited in the Herbarium Maria Eneyda Pacheco Kauffmann Fidalgo of the Botany Institute, in the state capital, besides duplicates in the Herbarium of the Municipality of Sao Paulo. Ibirapuera Park has 63 species of bryophytes. Many species are restricted to certain areas of the park, where several of them occur in unique locations. The greater richness of the bryoflora in areas with heterogeneous forests, rather than in areas where the buildings predominate, proves the forests serve as refuge for several bryophyte species in Ibirapuera Park. These results demonstrate the importance that afforestation has for the conservation of the park’s bryoflora, which is now known and can contribute to monitoring the environmental quality of the site. The bryophyte flora stands out for having one variety and one species that are endemic to Brazil, two endangered species, one of them being cited for the first time for the country.

The Picea orientalis in the Orumcek forests are the tallest with the largest-diameter found in Turkey, Europe, and Caucasica. In this study, the vegetation and the epiphytic bryophytes of the Spruce in the Orumcek forests were investigated. Bryophyte specimens collecting from the Spruce tree trunks were evaluated and 26 bryophtes taxa (6 liverworts, 20 mosses) belonging to 17 families and 19 genera were identified. As a result of the evaluation of the releves taken from the Spruce trunks with the Braun-Blanquet method, the Dicrano scoparii - Hypnetum cupressiformis association and -sanionietosum uncinatae subassociation belonging to the Dicrano scoparii - Hypnion cupressiformis alliance was determined as being new to Turkey. The life forms and life strategies of the syntaxa were examined and analyzed in terms of the ecological and floristic values. Mat (Ma) and Cushion (Cu) are dominant in the association, Weft (We) is dominant in the subassociation of the life forms while, perennial styers with a high sexual reproductive effort (Ag) was determined as being dominant in both the association and subassociation. The most taxa of the floristic list were are also determimed as mesophytic, sciophyt, and subneutrophyt as a character.

We investigated the vertical gradients in CO2 concentration and stable carbon isotope ratio (δ^13Cco2) of the canopy air within a coniferous-hardwood, Chamaecyparis and Rhododendron dominated, subalpine forest in Taiwan. The stable carbon isotope ratio of vascular plants and a epiphytic bryophyte species (Bazzania fauriana) (δ^13)C(subscript leaf)) from different heights within the forest were also analyzed. Results revealed that CO2 and δ^13Cco(subscript 2) gradients did exist within the forest, with higher CO2 concentrations and more negative δ^13Cco(subscript 2) values in air sampled from the lower canopy. The average vertical gradients in CO2 and δ^13Cco(subscript 2) value of the CO2 of the 12 sampling dates were 28.5±6.1ppm and 1.3±0.3‰, respectively. Seasonal patterns of the relationship between l/[CO2] and the corresponding δ^13C were pronounced, with steady decreases in the slopes and increases in the intercepts found from January to August. A decreasing δ^13C(subscript leaf) with decreasing height was also measured in a bryophyte (ranging from-27.4 to -29.2%o), canopy and understory leaves (ranging from -28.6 to -33.5%o). It was estimated that photosynthetic physiology affected by microclimates within the forest contributed approximately 2.8% of variation of the vertical gradient of vascular plant δ^13C values.

Afonina, O. M. 2015. New moss records from Irkutsk Province. 3. Arctoa 24: 250. Afonina, O. M., V. I. Zolotov & O. V. Lavrinenko. 2015. New moss records from Nenets Autonomous District. 3. Arctoa 24: 224–225. Ah-Peng, C., N. Wilding, J. Kluge, B. Descamps-Julien, J. Bardat, M. S. Chuah-Petiot, D. Strasberg & T. A. J. Hedderson. 2012. Bryophyte diversity and range size distribution along two altitudinal gradients: continent vs. island. Acta Oecologica 42: 58–65. Akatova, T. V. 2015. New moss records from Krasnodar Territory. 8. Arctoa 24: 248. Akatova, T. V. 2015. New moss records from Republic Adygea. 5. Arctoa 24: 248–249. Akatova, T. V. & E. A. Ignatova. 2015. On the moss flora of Lagonaki Highland (Adygea Republic, the Western Caucasus). Arctoa 24: 148–155. Akiyama, H. 2004. Koke no Hanashi: Chiisana shokubutsu no shirarezaru seitai. iv + 216 pp., 4 pls. Chuo Koron Shinsha, Tokyo, Japan. [In Japanese; title translates as Essays on Bryophytes; a less technical book than Akiyama et al. (2002); chapters are:

Recent literature on bryophytes — 119(3)

Collecting Bryophytes in Borneo

"The Structure and Life of Bryophytes." Transactions of the British Bryological Society, 4(4), pp. 694–695

Arctoa (2013) 22:

Bryophytes of McKinney's Cave

Erratum: Notes on Lichens and Bryophytes from Maine

Bryophyte ecology of marl bogs in Alberta

BOIKO, M. F., VIRCHENKO, V. M., LOBACHEVSKA O.V. (2017). Recent literature of bryophytes in Ukraine (2011–2015) / M. F. BOIKO, V. M. VIRCHENKO, O. V. LOBACHEVSKA // Chornomors’k. bot. z., 13 (3): 345–361. doi:10.14255/2308-9628/17.133/9.

New records of 38 hepatics and 87 mosses are reported from Greece. Leiocolea heterocolpos, Cephaloziella calyculata, Dicranella schreberiana, Hennediella stanfordensis, Weissia levieri, Grimmia alpestris and Grimmia torquata are believed to be new to the country. Claviform propagules formed by the excurrent nerve of the leaf are reported from a collection of Trichostomopsis australasiae.

Plant viruses are responsible for causing significant losses to the agricultural industry. Recent investigations of antiviral compounds have suggested that biflavonoids may be a group of compounds which cause powerful inhibition to a broad spectrum of viral pathogens. Due to the high content of biflavonoids reported in bryophytes, this project has screened 50 bryophyte samples which represent 41 species for Potato Virus X (PVX) inhibition using a local lesion assay in Chenopodium quinoa. As a result of this screening, bryophytes have been identified as a prominent antiviral group; 29 of the 41 species were shown to cause greater than 75% inhibition when tested at 9.1 mg/mL. In addition to screening bryophyte extracts, several biflavonoid compounds were tested directly. When tested at 1.38 mg/mL robustaflavone and hinokiflavone where shown to be highly antiviral and exhibited PVX inhibitions of 85% and 78% respectively. Amentoflavone-7,4',4'trimethyl ether showed a marginal PVX inhibition of 29% and amentoflavone did not inhibit PVX at this concentration. Several compounds from the Columbian medicinal plant Iryanthera megistophylla have also been screened for inhibition of PVX. Of these compounds, iryanterin K, cinchonain Ib, cinchonain Ia, procyanidin B-2 and cinchonain IIa have been shown to be highly active against PVX when tested at 9.1 mg/mL.

What are bryophytes and why are they important?