Supplementary file 1_Hidden diversity in the Trichostomum brachydontium complex (Pottiacea

A 2026 study by Omar Rodríguez applied integrative taxonomy to reassess the Trichostomum brachydontium complex in South America. Analyses of five molecular markers and 67 morphological characters revealed 11 distinct lineages, leading to the exclusion of T. brachydontium from the South American flora. The dataset supports findings on cryptic speciation and biogeographic divergence, including new distribution records and a proposed taxonomic combination.

Use Cases

• Training species classification models based on 67 morphological characters described in the study.
• Conducting phylogenetic analyses using the five molecular markers (ITS, atpB–rbcL, trnG, trnL–F, rps4) referenced in the description.
• Performing multivariate statistical analyses (PCA, LDA) on phenotypic differentiation data.
• Studying biogeographic patterns of bryophyte lineages across South America.

Strengths

• Integrates data from five molecular markers for phylogenetic analysis.
• Includes 67 morphological characters for detailed phenotypic assessment.
• Multivariate statistical support with a reported LDA accuracy of 96.6%.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the South American sampling scope.

Provenance

Source

figshare, authored by Omar Rodríguez.

Collection Method

Integrative taxonomic approach combining multilocus phylogenetics, morphoanatomical analyses, and multivariate statistics.

Freshness

Last updated 2026-04-21 05:20:05; freshness should be verified.

Geography

South America.