Patricia K. Holmgren’s research while affiliated with New York Botanical Garden and other places

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Publications (36)


A new species of Eremogone (Caryophyllaceae) from northern Utah and southeastern Idaho, U.S.A
  • Article

March 2011

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28 Reads

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2 Citations

Brittonia

Noel H. Holmgren

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Patricia K. Holmgren

A name (Eremogone loisiae) is provided for those plants from northern Utah and southeastern Idaho that have gone under the misapplied name Eremogone kingii subsp. uintahensis. Eremogone loisiae, named in honor of Lois A. Arnow, is distinguished from E. kingii by its longer and narrower, flexuous leaves and its longer sepals, petals, styles, capsules, and seeds.


New combinations and lectotypifications of North American taxa in Caryophyllaceae, Chenopodiaceae, Fumariaceae, Montiaceae, Papaveraceae, and Ranunculaceae

September 2010

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31 Reads

Brittonia

During preparation of manuscript for volume 2A of Intermountain Flora, we recognized the need to publish 11 new combinations and three second-step lectotypifications. The new combinations are: Eremogone fendleri var. plateauensis, E. fendleri var. porteri, E. fendleri var. brevicaulis, and E. kingii var. compacta (Caryophyllaceae), Atriplex gardneri var. robusta (Chenopodiaceae), Corydalis caseana var. brachycarpa (Fumariaceae), Claytonia parviflora var. utahensis (Montiaceae), Argemone parva and Eschscholzia californica var. mexicana (Papaveraceae), and Aquilegia micrantha var. loriae and Ranunculus adoneus var. caespitosus (Ranunculaceae). Second-step lectotypifications are provided for Talinum confertiflorum and Talinum pygmaeum (Montiaceae) and Platystemon termini (Papaveraceae). Key WordsCaryophyllaceae-Chenopodiaceae-Fumariaceae-Montiaceae-Papaveraceae-Ranunculaceae- Intermountain Flora




Manual of Vascular Plants of Northeastern United States and Adjacent Canada

May 2004

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173 Reads

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181 Citations

Taxon

Rudolf Schmid

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Henry A. (Allan) Gleason

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Arthur Cronquist

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[...]

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Laura Vogel

Phylogenetic hypotheses for the largely South African genus Pelargonium L'Hér. (Geraniaceae) were derived based on DNA sequence data from nuclear, chloroplast and mitochondrial encoded regions. The datasets were unequally represented and comprised cpDNA trnL­F sequences for 152 taxa, nrDNA ITS sequences for 55 taxa, and mtDNA nad 1 b/c exons for 51 taxa. Phylogenetic hypotheses derived from the separate three datasets were overall congruent. A single hypothesis synthesising the information in the three datasets was constructed following a total evidence approach and implementing dataset specific stepmatrices in order to correct for substitution biases. Pelargonium was found to consist of five main clades, some with contrasting evolutionary patterns with respect to biogeographic distributions, dispersal capacity, pollination biology and karyological diversification. The five main clades are structured in two (subgeneric) clades that correlate with chromosome size. One of these clades includes a "winter rainfall clade" containing more than 70% of all currently described Pelargonium species, and all restricted to the South African Cape winter rainfall region. Apart from (woody) shrubs and small herbaceous rosette subshrubs, this clade comprises a large "xerophytic" clade including geophytes, stem and leaf succulents, harbouring in total almost half of the genus. This clade is considered to be the result of in situ proliferation, possibly in response to late­Miocene and Pliocene aridification events. Nested within it is a radiation comprising c. 80 species from the geophytic Pelargonium section Hoarea , all characterised by the possession of (a series of) tunicate tubers.


New Mentzelias (Loasaceae) from the Intermountain Region of western United States

October 2002

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29 Reads

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17 Citations

Systematic Botany

Three new species and two new varieties of Mentzelia belonging to the multistemmed subshrub group of section Bartonia are described. Typical of the group, they are narrow endemics occurring in relatively barren clay soils in the Intermountain Region of interior western U.S. Mentzelia tiehmii and Mentzelia argillicola are from Nevada, Mentzelia memorabalis from northern Arizona, Mentzelia multicaulis variety uintahensis from northeastern Utah and northwestern Colorado, and Mentzelia multicaulis variety flumensevera from central Utah.


Additions to Index Herbariorum (Herbaria), Edition 8-Thirteenth Series

August 2002

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71 Reads

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7 Citations

Taxon

Nineteen additional herbaria have been called to our attention since the last installment of this series was published in February 2002. Information on these herbaria is presented below in alphabetical order by country. This brings the total number of herbaria added since the publication of Edition 8 to 393. Information for 3175 herbaria and 9623 people in 165 countries is available for searching by country, institution, city, state, acronym, staff member, correspondent, and research specialty at http://www.nybg.org/bsci/ih/ih.html. Telephone and fax numbers as well as e­mail and URL addresses are included. Note that the Index is fully searchable on research specialty, so it also serves as a PLANT SPECIALISTS INDEX.





Citations (23)


... The goal of this study was to identify phytoconstituents in Z. capitata through docking studies of major components as well as antimicrobial and antioxidant activity assessments of subsequent fractions of Ziziphora capitata L. .-Arish University, according to [15,16]. A voucher herbarium specimen was deposited in the herbarium of the Desert Research Center (CAIH) with code number CAIH-1251-R. ...

Reference:

Applying UPLC-QTOF-MS/MS to profile the phytochemical constituents associated with docking studies of major components of Ziziphora capitata L as well as antimicrobial and antioxidant activity assessments of its subsequent fractions
INDEX HERBARIORUM
  • Citing Article
  • November 1991

Taxon

... Plant names follow Brummitt and Powell (1992). Acronyms of herbaria are as indicated in Index Herbariorum and its supplement (Holmgren et al. 1990;Holmgren and Holmgren 1993;Thiers (updated continuously)). A key is provided to distinguish all Sideritis that can reach high elevations in the Iberian mountains. ...

ADDITIONS TO INDEX HERBARIORUM, PART I, THE HERBARIA OF THE WORLD, EDITION 7(III)
  • Citing Article
  • November 1985

Taxon

... Cover percentage was estimated using the quadrant technique (Necchi et al., 1995) in river segments measuring 10 m long, and five samples from each segment were obtained. Part of the samples were preserved alive for observation and subsequent cultivation in the laboratory, while another part was preserved in 4% formaldehyde (Holmgren et al., 1990) to be deposited in the Freshwater Algal Herbarium (FCME). Herbarium abbreviations follow the online Index Herbariorum (Thiers, 2023). ...

ADDITIONS TO INDEX HERBARIORUM, Part I, THE HERBARIA OF THE WORLD, EDITION 7
  • Citing Article
  • November 1983

Taxon

... Aronia (Aronia melanocarpa) was collected in the area of southern Serbia (territory of Leskovac, Latitude: 42°59′ 46.9536″ N; Longitude: 21°56′ 38.5224″ E) in August 2015. Voucher specimens for the plant material (Aronia melanocarpa L. 1753 "Nero" No 2-1485, determinator: Goran Anačkov) were confirmed and deposited at the Herbarium of the Department of Biology and Ecology -BUNS Herbarium, Faculty of Natural Sciences, University of Novi Sad (Holmgren and Holmgren, 2003). Aerial parts of the plant (berries, leaves and stems) were stacked in a crate with perforated bottom, in order to ensure air flow. ...

Additions to Index Herbariorum (Herbaria), Edition 8-Thirteenth Series
  • Citing Article
  • August 2002

Taxon

... bolanderi [2]. This species represents one of the largest native conifer distributions in North America, from the Pacific Northwest eastward to South Dakota and as far south as regions in Mexico [3,4]. Specific to the state of Utah, P. contorta var. ...

Intermountain Flora. Vascular Plants of the Intermountain West, U.S.A.
  • Citing Article
  • January 1979

Kew Bulletin

... Seeds of Gentianopsis barbellata have also been described as papillate (Cronquist et al. 1984;Engelmann 1878;Gillett 1957), although it is excluded from the monocarpic clade. In our images of G. barbellata obtained using low vacuum mode, the outer periclinal walls are slightly collapsed and do not appear to protrude at all ( Figure 2C); however, in micrographs taken using high vacuum conditions, outer periclinal walls of this species appear slightly protruding (data not shown) although not to the extent seen in seeds of the monocarpic clade. ...

Intermountain Flora. Vascualr Plants of the Intermountain West, U.S.A. Volume 4.
  • Citing Article
  • October 1984

Bulletin of the Torrey Botanical Club

... Type material was collected under CapeNature permits CN 35À28À15,073 and AAA 008À00,222À0028. We also examined all relevant material in BOL, MO, NBG, PRE and SAM (abbreviations following Holmgren et al., 1990), the herbaria containing the most significant holdings of southern African flora. No additional material of any of the taxa was found. ...

Index herbariorum 1. The herbaria of the world. Edn 8
  • Citing Article
  • January 1990

... Below the genus level, variation in these characters is important in differentiating among closely related species for which macromorphological differences are scarce or difficult to interpret. Indeed, these characters have been used to differentiate species within many genera, including Allium (Alliaceae; Fritsch et al. 2006), Ephedra (Ephedraceae; Ickert-Bond and Rydin 2011), Frailea (Cactaceae; Metzing and Thiede 2001), Lathyrus (Fabaceae; Güneş and Ali 2011), and Mentzelia (Loasaceae; Thompson and Prigge 1986;Holmgren and Holmgren 2002;Schenk and Hufford 2010). Tes-tal microsculpturing traits have also been used to infer deeper evolutionary relationships within families but with mixed success (e.g., Barthlott 1981;Shetler and Morin 1986;Johnson et al. 2004;Zhang et al. 2005;Cupido et al. 2011;Kasem et al. 2011;Sousa-Baena and Menezes 2014;Gunathilake et al. 2015). ...

New Mentzelias (Loasaceae) from the Intermountain Region of western United States
  • Citing Article
  • October 2002

Systematic Botany