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Taxonomic novelties and changes in Philippine Timonius (Rubiaceae, Guettardeae)
Author(s) -
Chavez Jayson G.,
Meve Ulrich,
LiedeSchumann Sigrid
Publication year - 2020
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/njb.02730
Subject(s) - biology , herbarium , rubiaceae , botany , taxonomy (biology) , archipelago , genus , flora (microbiology) , type (biology) , nomenclature , zoology , type species , ecology , paleontology , bacteria
The Philippine species of the genus Timonius present numerous taxonomic problems resulting from poorly defined species boundaries, misinterpretation of the origin of type specimens, and historical collections that often bear residual reproductive structures. Based on field observations and examination of herbarium materials, the following taxonomic amendments are proposed: conspecificity of T. philippinensis with T. finlaysonianus , and T. panayensis with T. valetonii , and transfer of T. quadrasii to Ridsdalea . This study also describes six new species from the archipelago: T. alejandroanus , T. dumagat , T. pseudoarboreus , T. ridsdalei , T. spes‐vitarum and T. stevendarwinii . Finally, T. nitidus is excluded from the Philippine flora.