Gayana Botanica <p><strong>GAYANA BOTANICA</strong>, dedicated to the French naturalist Claude Gay, is a journal for the publication of original research in all areas of the biology of plants and fungi.</p> <p><strong>WoS Impact Factor:</strong> <strong>0.439</strong> (2021) 0.814 (5 years)</p> <p><strong>SciELO</strong> (Scientific Electronic Library Online): <a href="" target="_blank" rel="noopener"></a></p> Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción en-US Gayana Botanica 0016-5301 <p>Authors who publish with this journal agree to the following terms:</p> <ol> <li class="show">Authors retain copyright and grant the journal right of first publication.</li> <li class="show">The articles in this journal are published under <a href="" target="_blank" rel="noopener">Creative Commons Attribution-NonCommercial 4.0 International License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li> <li class="show">Authors are permitted and encouraged to post their work online (e.g., in institutional repositories, on their website or ResearchGate) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See<a href="" target="_new">The Effect of Open Access</a>).</li> </ol> New localities of Robinsonia (Rhetinodendron) berteroi R.W. Sanders, Stuessy & Martic. (Asteraceae) found in review of the herbarium of the National Botanical Garden, Chile <p>Four new localities are cited for <em>Robinsonia </em>(<em>Rhetinodendron</em>) <em>berteroi</em>, on Robinson Crusoe Island, Chile, documented through herbarium collections made by the biologist Marcia Ricci in the years 1988 and 1990 deposited in the herbarium of the National Botanical Garden (JBN) of Chile, which remained as indeterminate species until September 2021.</p> Patricio Novoa Marcelo Baeza Arón Cádiz-Véliz Marcia Ricci Copyright (c) 2022 Patricio Novoa, Marcelo Baeza, Arón Cádiz-Véliz, Marcia Ricci 2022-12-31 2022-12-31 79 2 77 83 10.4067/S0717-66432022000200077 Taxonomic revision of Cuscuta (Convolvulaceae) in Chile <p>Parasitic plant genus <em>Cuscuta </em>is important both economically and ecologically. This study is the result of more than fifteen years of herbarium and field studies in preparation for the floristic account of the genus in <em>Nueva Flora de Chile</em>. Eleven species that belong to three sections of subgenus <em>Grammica </em>were confirmed from Chile. Two historically reported species, <em>C. epithymum </em>and <em>C. grandiflora</em>, were not corroborated by the existing evidence. An identification key, typification, detailed descriptions and illustrations were provided to facilitate the identification of species, and their taxonomy was discussed, outlining remaining problems. Geographical distribution, ecology and host range of species were detailed. Results strongly suggested that several species are likely rare (e.g., <em>C. andina</em>, <em>C. rustica</em>, <em>C. pauciflora</em>) or even extinct (<em>C. werdermannii</em>), emphasizing the need for concerted efforts to locate these species in the wild and establish their conservation status.</p> Mihai Costea Sebastián Teillier Copyright (c) 2022 Mihai Costea, Sebastián Teillier 2022-12-31 2022-12-31 79 2 84 106 10.4067/S0717-66432022000200084 Implications of the use of plastic shelters in the initial performance of Nothofagus pumilio plantations in Torres del Paine National Park <p>Environmental changes caused by fires in forest ecosystems can hinder reforestation processes, since it is necessary to have a cover that provides lateral protection. One solution to this problem has been the incorporation of tree shelter; however, there is evidence both for and against their use. The objectives of this study are to compare the initial performance (in terms of survival, growth and browsing) in <em>Nothofagus pumilio </em>plantations with and without the use of tree shelters in Torres del Paine National Park and to evaluate associated costs and operational yields involved in the use of this protections. Survival, growth and browsing variables were measured for 194 experimental units in three sectors of the park. The findings show that after four years, there are significant differences in survival and growth, being higher for plants with shelter. Browsing was also less likely under protected conditions. However, planting management and operational costs related to protections showed 51,6% additional costs and 14% loss of protections aesthetically affecting natural areas of the park. In consideration of the above, we conclude that the use of tree shelter favors a better performance in <em>N. pumilio</em>, however, we recommend that for a sustainable management of restoration actions, especially within wild areas, the financial, operational and environmental aspects associated with the use of tree shelter should be considered and counterbalanced.</p> Patricio E. Salinas Jan R. Bannister Osvaldo J. Vidal Copyright (c) 2022 Patricio E. Salinas, Jan R. Bannister, Osvaldo J. Vidal 2022-12-31 2022-12-31 79 2 107 123 10.4067/S0717-66432022000200107 Arenaria L. (Caryophyllaceae) in Chile <p><em>Arenaria </em>L. <em>sensu lato </em>is a genus of Caryophyllaceae of which around 100 species are known, distributed on all continents. The existence of four species of the genus <em>Arenaria </em>(Caryophyllaceae) for the vascular flora of Chile, three native and one introduced, is reported, thus reducing the historical number of names referring to this genus and accepting <em>A. digyna </em>Schltdl. <em>A. rivularis </em>Phil., <em>A. serpens </em>Kunth and <em>A. serpyllifolia </em>L., as currently accepted. New synonyms are proposed: <em>A. microphylla </em>Naudin, <em>A. oligosperma </em>Naudin, <em>Arenaria pleurantha </em>Phil., <em>A. cordillerana </em>Iamonico and <em>A. philippii </em>Iamonico, all of them are treated as <em>A. serpens </em>Kunth.</p> Daniel Montesinos-Tubée Sebastián Teillier Copyright (c) 2022 Daniel Montesinos-Tubée, Sebastián Teillier 2022-12-31 2022-12-31 79 2 124 139 10.4067/S0717-66432022000200124 Taxonomic revision of the genus Poa L. (Poaceae: Pooideae: Poeae) in Chile <p>A taxonomic revision of the genus <em>Poa </em>in Chile is given. Forty-two species, 5 subspecies and 5 varieties distributed in 4 subgenera, 15 sections and one informal group “Punapoa” are recognized. Synonyms, bibliographic references, notes on distribution and habitat, distinctive characters, and keys to species and subspecific taxa are provided for each species. The names <em>Poa algida </em>Trin., <em>P. annua </em>L. var. <em>eriolepis </em>E. Desv., <em>P. ariguensis </em>Steud., <em>P. chilensis </em>Trin., <em>P. chrysantha </em>Lindm., <em>P. fuegiana </em>(Hook.f.) Hack. var. <em>involucrata </em>Hack., <em>P. maullinica </em>Phil., and <em>P. yaganica </em>Speg. are lectotypified. A new combination and status is established for <em>P. parviceps </em>Hack. [<em>P. scaberula </em>Hook.f. subsp. <em>parviceps </em>(Hack.) Finot, Giussani &amp; Soreng]. <em>Poa dialystostachya </em>is proposed as a new synonym of the endemic <em>P. paposana</em>.</p> Víctor L. Finot Robert J. Soreng Liliana M. Giussani Florencia R. Sabena Nicolás Villalobos Copyright (c) 2022 2022-12-31 2022-12-31 79 2 159 253 10.4067/S0717-66432022000200159 Divergence among the subspecies of Alstroemeria garaventae Ehr. Bayer (Alstroemeriaceae) on fundamental karyotype and chloroplast DNA data <p>A comparative study of the two recognized subspecies of <em>Alstroemeria garaventae </em>Ehr. Bayer in Chile was conducted using chromosomes and chloroplast DNA as sources of taxonomic evidence. Both characters indicate both subspecies as separate entities, supporting previous taxonomic hypotheses. Yet, nuclear DNA analyses will be necessary to confirm their taxonomic status.</p> Carlos Baeza Perry Oscar Toro-Núñez Eduardo Ruiz David Santos Ariel Salvatierra Eitel Thielemann Copyright (c) 2022 Carlos Baeza Perry, Oscar Toro-Núñez, Eduardo Ruiz, David Santos, Ariel Salvatierra, Eitel Thielemann 2022-12-31 2022-12-31 79 2 140 146 10.4067/S0717-66432022000200140 The fruit-color polymorphism in Gaultheria mucronata (L.f.) Hook. & Arn. does not affect pre- dispersive germination <p>The germinative dynamics of <em>Gaultheria mucronata </em>(L.f.) Hook. &amp; Arn. seeds from fruits of different colors were compared. Seeds from white, pink and dark-pink fruits were subjected to germination trials, evaluating the final germination percentage, accumulated germination percentage and the mean germination period (T<sub>50</sub>). The results did not show statistically significant differences between the treatments, implying that the fruit color polymorphism does not show differences in the germinative behavior analyzed here.</p> Sergio A. Castro Edith Jerez Copyright (c) 2022 Sergio A. Castro, Edith Jerez 2022-12-31 2022-12-31 79 2 147 150 10.4067/S0717-66432022000200147 New records of macrofungi associated with a willow grove (Salix babylonica) at Estación de Biología Terrestre de Hualpén, Biobío Region, Chile <p>A preliminary inventory of macrofungi associated with <em>Salix babylonica </em>in south central Chile is presented. Sporomas of twelve basidiomycetes and one ascomycete were recorded during the 2021 season, functionally dividing into four ectomycorrhizal symbionts and nine wood decomposers. <em>Pholiota conissans </em>and <em>Xerocomellus ripariellus</em>, specialists in alluvial forests, are first records for Chile, along with <em>Cortinarius saniosus </em>and <em>Junghuhnia nitida</em>. Compatibility of endemic lignicolous <em>Anthracophyllum discolor</em>, <em>Clitocybe pleurotus </em>and <em>Pluteus brunneoolivaceus </em>with wood of allochthonous <em>S. babylonica </em>could also be shown.</p> Götz Palfner Javiera Farías Angélica Casanova-Katny Copyright (c) 2022 Götz Palfner, Javiera Farías, Angélica Casanova-Katny 2022-12-31 2022-12-31 79 2 151 158 10.4067/S0717-66432022000200151