A Phylogenetic Classification of Polemoniaceae

Abstract

Three hundred seventy nine species of Polemoniaceae are arranged in a phylogenetic classificat ion composed of three subfamilies, eight tribes. and 26 genera. Nomenclature of one tribe is clarified and the circumscription of several tribes differs greatly from previous classifications. Five new genera, Bryantiella, Dayia, Lathrocasis, Microgilia, and Saltugilia, are proposed. In addition, four new species are described from the genera Allophyllum, Dayia, Giliastrum, and lpomopsis. This treatment repr esents a major reclassification with 59 new combinations, and the application of several additional combinations not used in recent years .

The Vascular Flora of the Owens Peak Eastern Watershed, Southern Sierra Nevada, California

“…Plant determinations were made using several references, including The Jepson Desert Manual (Baldwin et al 2002), The Jepson Manual: Higher Plants of California (Hickman 1993), A Flora of Southern California (Munz 1974), A Flora of Kern County, California (Twisselman 1967), Intermountain Flora (Cronquist et al 1984), and the RSA-POM herbarium. All nomenclature conforms to Hickman (1993) with the exception of new treatments for Cactaceae (Griffith 2004), Polemoniaceae (Porter and Johnson 2000), and Madiinae (Baldwin 1999 …”

“…This catalog is a result of field work and herbarium searches conducted as of March 2005. Family classification follows FNA (2005), while classification of genera and species conforms to Hickman (1993), with the exception of Cactaceae (Griffith 2004), Polemoniaceae (Porter and Johnson 2000), and Madiinae (Baldwin 1999). Specimens that are cited are housed at RSA unless designated by CAS, DS, JEPS, POM, or UC.…”

A New Species of Linanthus (Polemoniaceae) from San Bernardino County, California

“…The genus Linanthus is endemic to North America and contains at least 25 species including the one newly described here (Porter and Johnson 2000). The genus is composed of annual and perennial species that are morphologically diverse, especially with respect to leaf morphology and inflorescence structure (Porter and Johnson 2000;Patterson and Porter 2012).…”

Morphological Delimitation and Molecular Evidence for Allopolyploidy in <I>Collomia wilkenii</I> (Polemoniaceae), a New Species from Northern Nevada

“…Day (1993a) noted vegetative, calyx, and pollen differences in G. capillaris as thus circumscribed and segregated the previously established Gilia sinistra M. E. Jones as a distinct species. Day's observations untangled much of the long history of confusion regarding these two species whose morphological similarities are most striking when considered in light of DNA-based phylogenies that indicate they do not form a monophyletic group exclusive of species of the vegetatively distinct genus Navarretia ( Johnson et al 1994 ;Porter and Johnson 2000 ). An iterative series of investigations within these taxa has revealed an even more striking instance of cryptic diversity.…”

“…This work, in conjunction with a thorough review of nomenclature indicates that, like Gilia sinistra hidden by synonymy in G. capillaris , the long neglected name G. linearifolia Howell should be reestablished (as Navarretia linearifolia (Howell) L. A. Johnson) for material recently considered conspecific with Gilia sinistra/ Navarretia sinistra (M. E. Jones) L. A. Johnson ( Day 1993a , b ;Grant and Day 1998 ;Porter and Johnson 2000 ).…”