P. Peterson

Publications181
h-index28
Citations3,563
Highly Influential Citations220
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A worldwide phylogenetic classification of the Poaceae (Gramineae)
TLDR
Based on recent molecular and morphological studies, this work presents a modern worldwide phylogenetic classification of the 771 grass genera and divides them into 12 subfamilies.
RECOGNITION OF PHRAGMITES AU STRAUS SUBSP. AMERICANUS (POACEAE: ARUNDINOIDEAE) IN NORTH AMERICA: EVIDENCE FROM MORPHOLOGICAL AND GENETIC ANALYSES
Horn Point Laboratory Department ofBotany University ofMaryland Center National Museum ofNatural History for Environmental Science Smithsonian Institution PO Box 775 Washington, District ofColumbia…
Dated historical biogeography of the temperate Loliinae (Poaceae, Pooideae) grasses in the northern and southern hemispheres.
TLDR
Bayesian estimates of divergence and dispersal-vicariance analyses indicate that the broad-leaved and fine-leaves Loliinae likely originated in the Miocene in the panMediterranean-SW Asian region and then expanded towards C and E Asia from where they colonized the New World.
Earlier plant flowering in spring as a response to global warming in the Washington, DC, area
TLDR
Advances of first-flowering in these 89 species are directly correlated with local increase in minimum temperature (Tmin), which is inferred from spring advances in first- Flowering in plants.
A classification of the Chloridoideae (Poaceae) based on multi-gene phylogenetic trees.
TLDR
The maximum likelihood and Bayesian analysis of DNA sequences provides strong support for the monophyly of the Chloridoideae; a new tribal and subtribal classification for all known genera is proposed.
A worldwide phylogenetic classification of the Poaceae (Gramineae) II: An update and a comparison of two 2015 classifications
TLDR
A new worldwide phylogenetic classification of 11 506 grass species in 768 genera, 12 subfamilies, seven supert tribes, 52 tribes, five supersubtribes, and 90 subtribes is presented and a radial tree illustrating the hierarchical relationships among the subtribes, tribes, and subfam families is included.
A worldwide phylogenetic classification of the Poaceae (Gramineae) II: An update and a comparison of two 2015 classifications
We present a new worldwide phylogenetic classification of 11 506 grass species in 768 genera, 12 subfamilies, seven supertribes, 52 tribes, five supersubtribes, and 90 subtribes; and compare two…
Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
TLDR
The phylogenetic hypothesis supports the recognition of the following genera and groups and monophyly of Phaenospermateae including Duthieinae is demonstrated, and its inclusion within or treatment as sister to Stipeae is rejected.
A 250 plastome phylogeny of the grass family (Poaceae): topological support under different data partitions
TLDR
resolution of these and other critical branch points in the phylogeny of Poaceae will help to better understand the selective forces that drove the radiation of the BOP and PACMAD clades comprising more than 99.9% of grass diversity.
Catalogue of new world grasses (Poaceae): III. Subfamilies Panicoideae, Aristidoideae, Arundinoideae, and Danthonioideae.
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