Fruit morphology in Anthurium sect. Pachyneurium from Brazil (Araceae) and its taxonomic implications

Abstract

The revision of Anthurium section Pachyneurium from Brazil provided the opportunity to expand the knowledge of berry attributes. Through examination of infructescence, fruits, and seeds from 11 species A. sect. Pachyneurium from Brazil, we aimed to uncover morphological variations in berry shape, size, color, ornamentation, and seed characteristics are crucial for taxonomic insights within the broader Anthurium genus. The study presents diagnostic descriptions for 11 Pachyneurium species, complemented by an identification key, diagnoses, illustrations, and a comparative table, based on infructescence, fruit and seeds. Pachyneurium species have oblong to obovoid berries, rarely globose shape, purple or reddish color and 1–2 seeds per berry, 1 is generally aborted. By elucidating the taxonomic value of these attributes, we provide essential tools for accurate species identification and classification, thus advancing botanical taxonomy and enriching our comprehension of this specific plant group.