A Taxonomic Revision of <i>Vriesea corcovadensis</i> Group (Bromeliaceae: Tillandsioideae) with Description of Two New Species

Gomes‐da‐Silva, Janaína; Costa, Andrea

doi:10.1600/036364411x569499

Cited by 22 publications

(14 citation statements)

References 6 publications

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“…For example, in most of its natural range Vriesea arachnoidea A.Costa primarily occupies tussocks on leaf litter, whereas epiphytic individuals are rare. However, in the Serra da Araponga (Minas Gerais), this species almost exclusively grows as an epiphyte (Gomes‐da‐Silva & da Costa, ). Finally, in tropical montane forests, the distinction between epiphytes and terrestrials is often vague, because growth conditions on moss‐laden branches of stunted trees hardly differ from those on moss‐covered ground, as already mentioned by Schimper ().…”

Section: Introductionmentioning

confidence: 99%

The systematic distribution of vascular epiphytes - a critical update

2013

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Vascular epiphyte species exclusively, or at least primarily, germinate and grow on other plants without contact with the soil and, in contrast to mistletoes, without parasitizing their hosts. The last review of the systematic distribution of this diverse group of plants dates back more than two decades. The present study pursues three major goals: (1) it critically discusses conceptual problems arising from the distinction of epiphytes from non‐epiphytes; (2) it presents a compilation of epiphytic diversity derived from a vast number of sources; and (3) it arranges epiphyte diversity in an up‐to‐date taxonomic framework. The resulting compilation, which identifies 27 614 species of vascular epiphytes (including primary hemiepiphytes) representing 913 genera in 73 families, or approximately 9% of extant vascular plant diversity, is meant to be an important tool for studies on the ecology and evolution of epiphytes, but also for comparative studies with a focus on other life forms. © 2013 The Linnean Society of London

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Section: Introductionmentioning

confidence: 99%

The systematic distribution of vascular epiphytes - a critical update

2013

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“…Clade V supports the monophyly of the group V. corcovadensis , which was revised (Gomes‐da‐Silva and Costa, ) and shown to be polyphyletic in a cladistic analysis with a reduced taxonomic sampling of Vriesea compared with this analysis, and based only on morphological data (Gomes‐da‐Silva et al., ). On the other hand, this group was recovered as monophyletic in a morphological analysis of the genus by Costa et al.…”

Section: Discussionmentioning

confidence: 58%

“…The genus increase is also difficult to work with because it is morphologically diverse and widely distributed. Recent studies have therefore focused on small groups of species with similar morphology (Costa et al, 2009;Gomes-da-Silva and Costa, 2011;Gomes-da-Silva et al, 2012;Moura and Costa, 2014).…”

Section: Introductionmentioning

confidence: 99%

What actually is Vriesea? A total evidence approach in a polyphyletic genus of Tillandsioideae (Bromeliaceae, Poales)

Gomes‐da‐Silva

Souza-Chies

2017

Cladistics

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The taxonomic delimitation of Vriesea is challenging because several diagnostic traits of the genus are shared with other genera in Tillandsioideae. The genus has no unique morphological features that distinguish it from other taxa. Earlier phylogenetic studies suggested a polyphyletic status of this genus, but taxon sampling was limited, and tests of congruence for morphological characters have not yet been performed. Here we used a total evidence approach and a more comprehensive Brazilian taxon sampling to help circumscribe Vriesea s.s. (the lineage that contains the type species). We concatenated morphological and molecular datasets for the first time to reconstruct phylogenetic hypotheses. We used 99 morphological characters and ~4 kb of plastid data (psbA‐trnH, trnK5′‐rps16, matK, trnL‐trnF) for 172 terminals, including nine genera of Tillandsioideae. We analysed datasets by parsimony analyses, with several weighting schemes considered for character‐state changes (equal weights and an implied weighting scheme that we used as a sensitivity analysis). The concatenated data resulted in a well‐resolved phylogenetic inference that provided strong evidence that the genus is not monophyletic as traditionally circumscribed. Given the congruence between morphological, molecular and geographical sources of data, we separated Vriesea into distinct lineages, and proposed a new circumscription that includes only species of Vriesea s.s. found in the Chacoan and Parana subregions.

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“…In its natural habitat, individuals resemble some species of Tillandsia L. (Reitz, 1983). Vriesea flammea occurs in the Atlantic Forest domain within the states of Rio Grande do Sul and Bahia, as well as the state of Pernambuco (Gomes-da-Silva and Costa, 2011;Forzza et al, 2018), but there is little scientific information on its biology and ecology in the specialized literature (Reitz, 1983;Machado and Semir, 2006;Gomes-da-Silva and Costa, 2011;Forzza et al, 2018). In addition, there have been no reports of ex situ propagation and conservation initiatives for V. flammea.…”

Section: Introductionmentioning

confidence: 99%

Conservation of Vriesea flammea L.B.Sm., an endemic Brazilian bromeliad: effects of nutrients and carbon source on plant development

2020

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Abstract Bromeliaceae is restricted to the Neotropical region and has a high degree of endemism, which contributes to increased biodiversity because of the diverse morphological characteristics of individuals. In order to develop an in vitro conservation technology to obtain plants for reintroduction, seeds of Vriesea flammea L.B.Sm. were collected, sterilized and germinated in culture medium. The plants obtained were cultured for 180 days in MS medium with different concentrations of mineral nutrients (25 and 50% of nitrogenous salts and macronutrients), and different concentrations of sucrose (20, 30, 40, 50 and 60 g L-1), and then acclimatized for 150 days on commercial substrate. When seeds were sterilized directly, only 4% of them were contaminated, whereas sterilization of capsules resulted in 43.6% contaminated seeds. Germination rates above 80% were recorded. Low concentrations of nitrogenous salts and macronutrients produced greater than 76% survival and promoted greater in vitro plant development than the complete MS medium. The development of the aerial system, root system, fresh mass and photosynthetic pigments were positively related to sucrose concentration in vitro. The highest sucrose concentration also indirectly promoted greater development of the aerial system and fresh mass of acclimatized plants. We established conditions for in vitro cultivation and acclimatization for efficient propagation of V. flammea with a view towards conservation of the species or reestablishment of natural populations.

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A Taxonomic Revision of Vriesea corcovadensis Group (Bromeliaceae: Tillandsioideae) with Description of Two New Species

Cited by 22 publications

References 6 publications

The systematic distribution of vascular epiphytes - a critical update

The systematic distribution of vascular epiphytes - a critical update

What actually is Vriesea? A total evidence approach in a polyphyletic genus of Tillandsioideae (Bromeliaceae, Poales)

Conservation of Vriesea flammea L.B.Sm., an endemic Brazilian bromeliad: effects of nutrients and carbon source on plant development

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