Recommended Citation
Published in SIDA Contributions to Botany, Volume 21, Issue 1, January 1, 2004, pages 207-219. Copyright © 2004 Botanical Research Institute of Texas. The definitive version is available at Biodiversity Heritage Library.
Abstract
Six new varieties are proposed in North American Cirsium (Asteraceae: Cardueae): C. arizonicum (A. Gray) Petrak var. tenuisectum D.J. Keil var. nov., C. eatonii (A. Gray) B.L. Rob. var. viperinum D.J. Keil, var. nov., C. edule Nutt. var. wenatchense D.J. Keil, var. nov., C. occidentale (Nutt.) Jeps. var. lucianum D.J. Keil, var. nov., C. scariosum Nutt. var. robustum D.J. Keil, var. nov., C. scariosum Nutt. var. toiyabense D.J. Keil, var. nov. Additionally, twenty new combinations are presented: C. arizonicum (A. Gray) Petrak var. bipinnatum (Eastw.) D.J. Keil, comb. nov., C. arizonicum (A. Gray) Petrak var. chellyense (R.J. Moore & Frankton) D.J. Keil, comb. et stat. nov., C. arizonicum (A. Gray) Petrak var. rothrockii (A. Gray) D.J. Keil, comb. et stat. nov., C. clavatum (M.E. Jones) Petrak var. americanum (A. Gray) D.J. Keil, comb. nov., C. clavatum (M.E. Jones) Petrak var. osterhoutii (Rydb.) D.J. Keil, comb. et stat. nov., C. cymosum (Greene) J.T. Howell var. canovirens (Rydb.) D.J. Keil, comb. et stat. nov., C. eatonii (A. Gray) B.L. Rob. var. eriocephalum (A. Nelson) D.J. Keil, comb. nov., C. eatonii (A. Gray) B.L. Rob. var. hesperium (Eastw.) D.J. Keil, comb. et stat. nov., C. eatonii (A. Gray) B.L. Rob. var. peckii (L.F. Hend.) D.J. Keil, comb. et stat. nov., C. eatonii (A. Gray) B.L. Rob. var. var. clokeyi (S.F. Blake) D.J. Keil, comb. et stat. nov., C. edule Nutt. var. macounii (Greene) D.J. Keil, comb. et stat. nov., C. horridulum Michx. var. megacanthum (Nutt.) D.J. Keil, comb. et stat. nov., C. inamoenum (Greene) D.J. Keil, comb. nov., C. inamoenum (Greene) D.J. Keil var. davisii (Cronquist) D.J. Keil, comb. et stat. nov., C. ochrocentrum A. Gray var. martinii (P. Barlow-Irick) D.J. Keil, comb. et stat. nov., C. pulcherrimum (Rydb.) K. Schum. var. aridum (R.D. Dorn) D.J. Keil, comb. et stat. nov., C. scariosum Nutt. var. americanum (A. Gray) D.J. Keil, comb. nov., C. scariosum Nutt. var. citrinum (Petrak) D.J. Keil, comb. nov., C. scariosum Nutt. var. coloradense (Rydb.) D.J. Keil, comb. et stat. nov., C. scariosum Nutt. var. congdonii (R.J. Moore & Frankton) D.J. Keil, comb. et stat. nov. Lectotypes are designated for several of these taxa.
Disciplines
Biology
URL: http://digitalcommons.calpoly.edu/bio_fac/197