Two New Species of &lt;I&gt;Burmeistera&lt;/I&gt; (Campanulaceae: Lobelioideae) from the Cordillera de Talamanca of Costa Rica and Panama, with a Key to the Central American Species

Lagomarsino, Laura P.; Aguilar, Daniel Santamar{ 'ıa; Muchhala, Nathan

doi:10.1600/036364415x689339

Cited by 3 publications

(2 citation statements)

References 23 publications

(28 reference statements)

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“…Burmeistera H. Karst. & Triana (Campanulaceae: Lobelioideae) is a Neotropical genus of ∼120 species of herbs, terrestrial and hemiepiphytic shrubs distributed from Guatemala to northern Peru (Lammers 2007;Knox et al 2008;Garzón-Venegas and González 2012;Lagomarsino et al 2015). The genus attains its highest diversity in the cloud forests of Colombia and Ecuador, where up to six to eight species may co-occur at a given site (Moreno and Muchhala 2011;Vallejo et al 2018).…”

Section: Study System and Sitementioning

confidence: 99%

“…primary pollinators of Burmeistera, with only a few species pollinated by hummingbirds (Muchhala 2003(Muchhala , 2006. Burmeistera fruits are berries that are either fleshy or inflated (hollow and with thin walls; Lammers 2002;Lagomarsino et al 2015;Gamba et al 2017) and contain hundreds to thousands of seeds !1 mm long (J. I. Moreira-Hernández and N. Muchhala, unpublished data).…”

Section: Moreira-hernández Et Al-heterospecific Pollen Effects In Bur...mentioning

confidence: 99%

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Differential Tolerance to Increasing Heterospecific Pollen Deposition in Two Sympatric Species of Burmeistera (Campanulaceae: Lobelioideae)

Moreira-Hernández

Terzich

Zambrano-Cevallos

et al. 2019

International Journal of Plant Sciences

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Premise of research. Heterospecific pollen deposition on stigmas can impact plant reproduction by decreasing seed set or inducing fruit abortion. Pollinating bats often carry pollen from many species on their fur, and thus bat-pollinated flowers may exhibit tolerance to heterospecific pollen deposition, but to our knowledge this has never been studied. We investigated the relative impact of increasing heterospecific pollen deposition on female reproduction of two sympatric species of Burmeistera that experience pollen transfer between them by their shared bat pollinators.Methodology. We simulated heterospecific pollen deposition by applying pollen mixtures that differed in the ratio of heterospecific to conspecific flowers used to make them (3∶1; 2∶2, and 1∶3) and measured female reproduction by quantifying fruit abortion, seed number, and seed mass.Pivotal results. For Burmeistera borjensis, applying a higher relative amount of heterospecific pollen led to decreased seed production and lighter seed mass, whereas no significant effect of increasing heterospecific pollen was detected in Burmeistera ceratocarpa. Burmeistera borjensis aborted more fruits than B. ceratocarpa (44.1% vs. 18.8%); however, in both species the probability of fruit abortion was not affected by pollination treatment.Conclusions. We detected asymmetric impacts on female reproduction between this pair of sympatric Burmeistera: while increasing heterospecific pollen deposition decreased seed production and seed mass for B. borjensis, it had no detectable effect on B. ceratocarpa. Prior work shows that in nature B. borjensis receives much lower amounts of heterospecific pollen than B. ceratocarpa, and thus results suggest that B. ceratocarpa may have stronger gametic or postzygotic isolating barriers to be able to tolerate heterospecific pollen deposition. Future work should explore how different isolation mechanisms contribute to the asymmetric effects on female reproduction that we report here and whether tolerance to heterospecific pollen deposition is a common response among bat-pollinated plants and other plant taxa relying on low-fidelity pollinators.

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Section: Study System and Sitementioning

confidence: 99%

Section: Moreira-hernández Et Al-heterospecific Pollen Effects In Bur...mentioning

confidence: 99%

Differential Tolerance to Increasing Heterospecific Pollen Deposition in Two Sympatric Species of Burmeistera (Campanulaceae: Lobelioideae)

Moreira-Hernández

Terzich

Zambrano-Cevallos

et al. 2019

International Journal of Plant Sciences

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Phylogenetic relationships of Burmeistera (Campanulaceae: Lobelioideae): Combining whole plastome with targeted loci data in a recent radiation

Uribe‐Convers

Carlsen

Lagomarsino

et al. 2017

Molecular Phylogenetics and Evolution

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Morphometrics in the Recurved Corolla Clade of Burmeistera (Campanulaceae) Clarifies Species Limits and Identifies a New Species

Mashburn,

Trigueros,

Ulloa

et al. 2024

Systematic Botany

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Abstract— The genus Burmeistera consists mostly of cloud forest species occurring from Guatemala to Peru. Molecular work on this group has revealed previously established subgeneric groupings to be non-monophyletic, while also identifying several monophyletic groups with recognizable synapomorphies. One such monophyletic group is a clade of species with recurved corolla lobes which contains three species: B. crispiloba, B. sodiroana, and B. succulenta. As many as nine names have been recognized previously for these species, though the most recent taxonomic treatments recognize only these three. Additional collections of these species made in the last forty years have uncovered phenotypic variation showing that characters traditionally used to differentiate them no longer do so clearly and suggest the possibility of introgression between them. Here, we report morphometric analyses of herbarium specimens of the recurved corolla clade, using both hierarchical and normal mixture model-based clustering methods to test the current species hypotheses. Our results support the recognition of the three known species plus the newly described Burmeistera kitrinaima sp. nov. We provide complete descriptions of all four species, and include photographs, distributions maps, taxonomic discussion, and an identification key. Keywords—Andes, biodiversity, cluster analysis, hybridization, taxonomy.

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Two New Species of <I>Burmeistera</I> (Campanulaceae: Lobelioideae) from the Cordillera de Talamanca of Costa Rica and Panama, with a Key to the Central American Species

Cited by 3 publications

References 23 publications

Differential Tolerance to Increasing Heterospecific Pollen Deposition in Two Sympatric Species of Burmeistera (Campanulaceae: Lobelioideae)

Differential Tolerance to Increasing Heterospecific Pollen Deposition in Two Sympatric Species of Burmeistera (Campanulaceae: Lobelioideae)

Phylogenetic relationships of Burmeistera (Campanulaceae: Lobelioideae): Combining whole plastome with targeted loci data in a recent radiation

Morphometrics in the Recurved Corolla Clade of Burmeistera (Campanulaceae) Clarifies Species Limits and Identifies a New Species

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