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| Kingdom Animalia |
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Aeshna williamsoniana Calvert, 1905 – valid
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Bathyporeia guilliamsoniana (Bate, 1856) – valid
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Williamsonia Davis, 1913 – valid
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Williamsonia fletcheri Williamson, 1923 – valid – Ebony Boghaunter
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Williamsonia lintneri (Hagen in Selys, 1878) – valid – Ringed Boghaunter |
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| Kingdom Bacteria |
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Samsonia Sutra et al., 2001 – valid
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Samsonia erythrinae Sutra et al., 2001 – valid |
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| Kingdom Plantae |
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Amsonia Walter – accepted – slimpod, bluestar
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Amsonia amsonia (L.) Britton – not accepted
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Amsonia arenaria Standl. – not accepted
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Amsonia brevifolia A. Gray – not accepted
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Amsonia ciliata Walter – accepted – fringe slimpod, Texas slimpod, fringed bluestar
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Amsonia ciliata var. ciliata Walter – accepted – fringed bluestar
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Amsonia ciliata var. filifolia Alph. Wood – not accepted
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Amsonia ciliata var. tenuifolia (Raf.) Woodson – accepted – fringed bluestar
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Amsonia ciliata var. texana (A. Gray) J.M. Coult. – accepted – Texas bluestar
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Amsonia eastwoodiana Rydb. – not accepted – Eastwood's bluestar
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Amsonia fugatei S.P. McLaughlin – accepted – Kearney's bluestar, San Antonio bluestar
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Amsonia glaberrima Woodson – not accepted – smooth blue-star
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Amsonia grandiflora Alexander – accepted – Arizona bluestar
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Amsonia hirtella Standl. – not accepted
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Amsonia hirtella var. pogonosepala (Woodson) Wiggins – not accepted
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Amsonia hubrichtii Woodson – accepted – Hubricht's bluestar
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Amsonia illustris Woodson – accepted – Ozark bluestar
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Amsonia jonesii Woodson – accepted – Jones' bluestar
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Amsonia kearneyana Woodson – accepted – Kearney's blue-star, Kearney's bluestar
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Amsonia longiflora Torr. – accepted – tubular bluestar
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Amsonia longiflora var. longiflora Torr. – accepted – tubular bluestar
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Amsonia longiflora var. salpignantha (Woodson) S.P. McLaughlin – accepted – tubular bluestar
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Amsonia ludoviciana Vail – accepted – Louisiana blue-star
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Amsonia palmeri A. Gray – accepted – Palmer's bluestar
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Amsonia peeblesii Woodson – accepted – Peebles' bluestar
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Amsonia pogonosepala Woodson – not accepted
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Amsonia repens Shinners – accepted – creeping bluestar
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Amsonia rigida Shuttlw. ex Small – accepted – stiff bluestar
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Amsonia salicifolia Pursh – not accepted
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Amsonia salpignantha Woodson – not accepted
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Amsonia standleyi Woodson – not accepted
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Amsonia tabernaemontana Walter – accepted – willow slimpod, eastern bluestar
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Amsonia tabernaemontana var. gattingeri Woodson – accepted – eastern bluestar
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Amsonia tabernaemontana var. salicifolia (Pursh) Woodson – accepted – eastern bluestar
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Amsonia tabernaemontana var. tabernaemontana Walter – accepted – eastern bluestar
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Amsonia tharpii Woodson – accepted – feltleaf bluestar, Tharp blue-star
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Amsonia tomentosa Torr. & Frém. – accepted – woolly amosonia, woolly bluestar
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Amsonia tomentosa var. stenophylla Kearney & Peebles – accepted – woolly bluestar
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Amsonia tomentosa var. tomentosa Torr. & Frém. – accepted – woolly bluestar |
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| Kingdom Protozoa |
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Buliminoides williamsonianus – valid |
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