taxonID	type	description	language	source
0392513BFF93E011FF9E78D7FB08FF4F.taxon	description	Habitat & Ecology — Terrestrial. Grows in a wide variety of habitats, from mountainous, dry environments with stony soils to subtropical forests or riparian forests with humid and shady soils. Location within the reserve — This species grows in the el- evated understory of mixed forests, which never floods, together with Rumohra adiantiformis and Adiantum raddianum. These substrate conditions were not observed in any other part of the reserve. Likewise, the soil remains covered all year round by the dry leaves of a Magnolia grandiflora L. individual. Remains of old buildings were observed in that sector. Observations — Although it is located in a single area within the reserve, it forms a dense population. Illustration and morphological description reference — Ramos Giacosa (2016). Studied specimens. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 486 (BA), 18 - IX- 2018; Yañez et al. 491 (BA), 31 - V- 2019.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF93E011FCD17E3EFC39FA93.taxon	description	Habitat & Ecology — Terrestrial, marsh species. It grows in flooded soils, near bodies of water such as stream banks or ditches. Generally in areas exposed to direct sunlight. Location within the reserve — This species was found form- ing a dense population near a watercourse in the northern limit of the Eco-area, where it borders a deforested area destined to livestock. Illustration and morphological description reference — Arana (2016). Studied specimen. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 483 (BA, LP), 18 - IX- 2018.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF93E011FCD17C3CFB04FD4A.taxon	description	Habitat & Ecology — Terrestrial. Location within the reserve — A small population was found growing in the understory of mixed forests (see Blechnum auriculatum). Illustration and morphological description reference — Ponce & Arana (2016). Studied specimens. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Y añez et al. 479 (BA), 18 - IX- 2018; Yañez et al. 569 (BA), 22 - XII- 2020.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF93E016FCD178C7FE04F859.taxon	description	Habitat & Ecology — Terrestrial. Location within the reserve — It forms a dense population in exposed understory areas. Observations — The population is growing associated with rubble of old buildings that belonged to the ancient inhabitants of the area. In this sense, its presence in the area could be related to its ornamental use in a domestic environment. Later it is possible that N. cordifolia has colonized the surrounding area thanks to its fast-growing rhizomes and the origin of new individuals through the formation of typical tubers of the species. Illustration and morphological description reference — Arana (2016). Studied specimen. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 478 (BA, LP), 18 - IX- 2018. Fig 3 Ferns from Eco Área of Municipal Ecological Reserve. a. Rumohra adiantiformis; b. Nephrolepis cordifolia; c. Adiantum raddianum; d. Gastoniella chaerophylla; e. Pteris tremula; f. Microgramma mortoniana; g. Pleopeltis minima; h. Cyrtomium falcatum; i. Cyclosorus interruptus (a: Yañez et al. 479; b: Yañez et al. 478; c: Yañez et al. 570; d: Yañez et al. 567; e: Yañez et al. 489; f: Yañez et al. 481; g: Yañez et al. 484; h: Yañez et al. 482; i: Yañez et al. 477; all BA). — Photos by Agustina Yañez.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF95E017FF9E7DB7FD44FCC2.taxon	description	Habitat & Ecology — Terrestrial. Location within the reserve — Mixed forest understory (see Blechnum auriculatum). It has also been found growing in flooded soil along the banks of a stream, next to Gastoniella chaerophylla populations and under dense Equisetum giganteum populations. Observations — During the in vitro culture carried out to obtain fertile specimens of G. chaerophylla, gametophytes of A. raddianum were observed growing from the substrate collected in the field. This highlights the importance of natural spore banks present in the soil of protected areas as reservoirs of biodiversity and potential tools for the conservation of native species (Berrueta et al. 2021). Illustration and morphological description reference — Giudice (2016) Studied specimens. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 480 (BA), 18 - IX- 2018; Yañez et al. 487 (BA), 31 - V- 2019; Yañez et al. 570 (BA), 22 - XII- 2020.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF95E017FF9E7EF5FF78F984.taxon	description	Habitat & Ecology — Terrestrial. Location within the reserve — It was found growing in humid and shady environments on the edge of temporary ponds and low flow streams. During the collections carried out in 2020, new and numerous populations were found growing under the tourists walkways. Observations — Only young gametophytes and sporophytes, a few centimetres long were found during 2018 and 2019. They were cultivated in vitro until obtaining mature sporophytes with fertile fronds. Later, in the trips carried out during 2020, fertile populations were found in the field. Illustration and morphological description reference — Arana (2016). Studied specimen. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 567 (BA), 22 - XII- 2020.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF95E017FCD17C81FB7BFB1F.taxon	description	Habitat & Ecology — Epiphyte. It can grow under different conditions of solar radiation and on different substrates such as living trees, fallen trunks from the understory, supporting structures of woody origin or, occasionally, walls of old buildings (García & Rosato 2011). Plasticity for the colonization of different substrates could be related to the presence of vegetative reproduction buds associated with gametophytes (Gorrer et al. 2018). Location within the reserve — It was found growing on Erythrina crista-galli, always exposed to direct sunlight. Observations — It could be identified from its dimorphic to hemidimorphic fronds, ovate lamina scales with a markedly ciliate margin and rhizome scales with a slightly ciliate margin. Illustration and morphological description reference — Cacharani & Martínez (2016). Studied specimens. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 481 (BA), 18 - IX- 2018; Yañez et al. 571 (BA, LP), 22 - XII- 2020.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF95E017FCD17989FC39F956.taxon	description	Habitat & Ecology — Epiphyte. Location within the reserve — It forms dense populations on the trunks of Erythrina crista-galli. Observations — Guerrero & Cellini (2017) suggested that this species is in geographical expansion towards the south of the Buenos Aires province, and this would coincide with the changes in temperature and rainfall the region went through during the 20 th century. Illustration and morphological description reference — Cacharani & Martínez (2016). Studied specimen. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 484 (BA, LP), 18 - IX- 2018.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF95E017FF9E7B32FB6FFE2E.taxon	description	Habitat & Ecology — Terrestrial. Location within the reserve — Edge of the main road and near the park ranger’s house and on the edges and under the tourist walkways, in dense populations. Observations — Throughout the successive annual trips carried out, a striking growth of the populations of this species was observed. While in 2018 only one sterile population was observed on the side of the main road, during 2019 new fertile populations were found and in 2020, the species was found colonizing large sectors under the tourist walkway. A pheno- logical analysis of the population found would be necessary to understand its reproductive strategies and the potential effect of this exotic species on native flora. Illustration and morphological description reference — Kramer & McCarthy (1998). Studied specimens. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 476 (BA), 18 - IX- 2018; Yañez et al. 489 (BA, LP), 31 - V- 2019.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF95E014FCD17A41FF67FE0F.taxon	description	Habitat & Ecology — Terrestrial, it is occasionally epipetric and growing on walls. Location within the reserve — A single population of this species was found growing in a shady area of the understory. Observations — Due to its exotic origin, its traditional use as an ornamental species (Yañez et al. 2020), and its growing close to Nephrolepis cordifolia, make it likely that the origin of this species in the area could also be linked to the anthropogenic use of the reserve area prior to its foundation. Previous work has recorded its potential to colonize new habitats and displace native species (Robinson 2009). Illustration and morphological description reference — Zhang & Barrington (2013). Studied specimen. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 482 (BA, LP), 18 - IX- 2018.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF96E014FF9E784BFD19F81E.taxon	description	Habitat & Ecology — Terrestrial, grows very frequently in exposed habitats and is a colonizing species in disturbed areas such as forest clearings, roadsides or lands where vegetation was removed. It is occasionally epiphyte or epipetric and grows on walls. Location within the reserve — Edge of roads and under tourist walkways. Observations — Previous work highlights that this species can cause the displacement of populations of native species (Tejero-Díez & Torres-Díaz 2012). Illustration and morphological description reference — Ponce (2016). Studied specimens. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 485 (BA, LP), 18 - IX- 2018; Yañez et al. 488, Yañez et al. 499 (BA, LP), 31 - V- 2019.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF96E014FF9E7A88FB14FD3A.taxon	description	Habitat & Ecology — Terrestrial, marsh species. It forms dense populations at the edge of low flow streams, in flooded soil. Location within the reserve — Grows both in exposed places, next to Iris pseudacorus, and in the shady undergrowth, next to temporary streams that run through the reserve. Observations — As was mentioned for Gastoniella chaerophylla and Pteris tremula, during the collections carried out in 2020, new populations of this species were found growing on the edges of the tourist walkways. Illustration and morphological description reference — Ponce (2016). Studied specimens. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 477 (BA, LP), 18 - IX- 2018; Yañez et al. 492 (BA), 31 - V- 2019.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
0392513BFF96E014FF9E7F62FF78FB14.taxon	description	Habitat & Ecology — Aquatic, floating. It forms large populations that cover reservoirs, artificial and natural lakes and channels. Location within the reserve — It was found in small populations, growing in a temporary pond next to the park rangers’ house. Observations — Years prior to starting the present study, the temporary presence of unidentified specimens of Salvinia had been observed growing in bodies of stagnant or low-flow water found within the Eco Área (García pers. obs.). However, during the trips made in 2018 and 2019 these populations were not found, as well as any other species of aquatic fern. Recently, during 2020, a population was recorded in a flooded area where the invasive species Iris pseudacorus was removed. Illustration and morphological description reference — Arana (2016). Studied specimen. ARGENTINA, Buenos Aires, Mun. Avellaneda, Reserva Ecológica Municipal de Avellaneda (Eco Área), Yañez et al. 568 (BA), 22 - XII- 2020.	en	Yañez, A., Marquez, G. J., Berrueta, P. C., García, R. A. (2021): An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina). Blumea 66 (3): 227-235, DOI: 10.3767/blumea.2021.66.03.05, URL: https://doi.org/10.3767/blumea.2021.66.03.05
