Arthur C. Cronquist (1919–1992) was a North American botanist who wrote An Integrated System of Classification of Flowering Plants (1981) and The Evolution and Classification of Flowering Plants (1988). Jump to: navigation, search 1919 was a common year starting on Wednesday (see link for calendar). ... Jump to: navigation, search 1992 was a leap year starting on Wednesday. ... Jump to: navigation, search Botany is the scientific study of plant life. ... Jump to: navigation, search 1981 is a common year starting on Thursday of the Gregorian calendar. ... Jump to: navigation, search 1988 (MCMLXXXVIII) is a leap year starting on a Friday of the Gregorian calendar. ...
Conversely, Cronquist reveals an essentially phenetic approach to systematics on page 2: "taxonomy is a study aimed at producing a system of classification of organisms which best reflects the totality of their similarities and differences".
Cronquist makes a common error in suggesting that "taxa are properly established on the basis of multiple correlations of characters" (page 5; emphasis is mine).
Cronquist correctly rejects the hypothesis of an "Amentiferae" ancestor, in which the unisexual strobili of the Gnetales are homologised with those of hamamelid families with catkins (Wettstein 1907).
Share your thoughts, questions and commentary here
Want to know more? Search encyclopedia, statistics and forums:
Press Releases |
The Wikipedia article included on this page is licensed under the
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m