New names,combinations, and lectotypifications in Heterotheca (Compositae: Astereae) |
| |
| Authors: | John C Semple |
| |
| Institution: | 1. Department of Biology, University of Waterloo, N2L 3G1, Waterloo, Ontario, Canada
|
| |
| Abstract: | The following new names and combinations are proposed:Heterotheca barbata (Rydb.) Semple,H. horrida subsp.cinerascens (S. F. Blake) Semple,H. fulcrata vararizonica Semple,H. fulcrata var.senilis (Wooton & Standley) Semple,H. oregona var.compacta (Keck) Semple,H. oregona var.rudis (Greene) Semple,H. oregona var.scaberrima (A. Gray) Semple,H. pumila (Greene) Semple,H. villosa var.pedunculata (Greene) V. Harms ex Semple, andH. zionensis Semple. The following chromosome numbers are reported for the first time:H. fulcrata var.arizonica, 2n=9 II ;H. horrida subsp.cinerascens, 2n=18 II ;H. pumila, 2n=9 II ,2n=18 II ;H. zionensis, 2n=9 II . |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
