Abstract
SummaryThe style of the Asteraceae varies in the direction of its branching. In examples studied in the subfamily Asteroideae the disk flowers or flowers of homogamous heads have style branches diverging radially to the center of the head. In that subfamily, the style branches in the ray flowers are usually tangentially directed in the Heliantheae, Inuleae and Senecioneae, and are radially directed in the Astereae and Anthemideae. In examples studied in the subfamily Cichorioideae, the Lactuceae and Vernonieae have tangential style branches in all flowers, Carduus of the Cardueae has styles all radial, they vary in the Liabeae, and they have a Helianthean pattern in Haplocarpha of the Arctoteae. It seems significant that tribes with basically different style orientations in the ray and disk flowers of the same head are usually tribes where many members have sterile gynoecia in either the rays or the disk.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
