University of Wisconsin - Madison
Catalog #: v0261838WIS
Taxon: Packera paupercula var. savannarum R.R.Kowal
Family: Asteraceae
Determiner: Mahoney, Alison & Soderholm, Sarah (2015)
Show Determination History
Collector: Kowal, Robert R.   2880   
Date: 1975-05-24
Verbatim Date: 1975-05-24
Locality: United States, Wisconsin, Grant, S of Woodman, SW of Big Green River & Green River School.
Habitat: On rock outcrop in pasture. Loamy soil between rocks where individuals are rooted with pH = 7.8-8.0 (the same as in a nearby corn field); clay soil of pasture with pH 5.6-5.8. Some in light shade of Betula papyrifera & Tilia american. With Poa compressa, P. angustifolia Daucus Carota, Achillea Millefolium, Erigeron strigosus, Rhus glabra, Euphorbia, Ambrosia artemisia folia, Tragopogon dubius, Plantago lanceolata, Toxicodendron radicans, Aquilegia canadensis, Lobelia spicata, Potentilla arguta, Campanula rotundifolia, Aster.
Occurrence Remarks: Originally collected by R.R. Kowal, 1970 Jun 25. Population Primary Sampling Unit (PSU) 3, Individual 5, grown in Test Garden 2, positions G25 & C6 (the smaller flowering stalk). Voucher for chromosome count: 2n = ca 85-88, 1 cell in Anaphase I counted (1971 Mar 20). A tetraploid (presumably with x = 22) within a diploid population! Chromosome counts of cultivated Individuals 2, 3, 6, 9 & 10: 2n = 22 II with 7, 5, 4, 11 & 8 cells counted, respectively (1972 Jun 11 & 12, 1971 Feb 22, 1972 Jun 11, 1972 Mar 31, 1972 Apr 6, respectively).
Record Id: 5d3eec5a-f83f-4e32-8b62-c4ef5ce21058
Occurrence ID (GUID): 10717a9c-e269-4426-80c7-6405f1eb107b
For additional information on this occurrence, please contact: Mary Ann Feist (mfeist@wisc.edu)
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