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Generic classification of Amaryllidaceae tribe Hippeastreae
Author(s) -
García Nicolás,
Meerow Alan W.,
ArroyoLeuenberger Silvia,
Oliveira Renata S.,
Dutilh Julie H.,
Soltis Pamela S.,
Judd Walter S.
Publication year - 2019
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.1002/tax.12062
Subject(s) - subgenus , amaryllidaceae , biology , genus , clade , botany , phylogenetic tree , tribe , zoology , genetics , sociology , anthropology , gene
A robust generic classification for Amaryllidaceae has remained elusive mainly due to the lack of unequivocal diagnostic characters, a consequence of highly canalized variation and a deeply reticulated evolutionary history. A consensus classification is proposed here, based on recent molecular phylogenetic studies, morphological and cytogenetic variation, and accounting for secondary criteria of classification, such as nomenclatural stability. Using the latest sutribal classification of Hippeastreae (Hippeastrinae and Traubiinae) as a foundation, we propose the recognition of six genera, namely Eremolirion gen. nov., Hippeastrum , Phycella s.l., Rhodolirium s.str., Traubia , and Zephyranthes s.l. A subgeneric classification is suggested for Hippeastrum and Zephyranthes to denote putative subclades. In Hippeastrum , we recognize H . subg. Hippeastrum and H . subg. Tocantinia . In Zephyranthes , Z . subg. Eithea , Z . subg. Habranthus , Z . subg. Myostemma (= core Rhodophiala clade), Z . subg. Neorhodophiala subg. nov., and Z . subg. Zephyranthes are recognized. Descriptions, synonymy, taxonomic keys, and new combinations are provided for each genus and subgenus.