Plant Systematics and Evolution

, Volume 137, Issue 1, pp 45–56

Evidence for intergeneric incompatibility in ferns

  • Johann J. Schneller
Article

DOI: 10.1007/BF00983203

Cite this article as:
Schneller, J.J. Pl Syst Evol (1981) 137: 45. doi:10.1007/BF00983203

Abstract

The archegonial mucilage ofAthyrium filix-femina andA. distentifolium paralyses spermatozoids ofDryopteris filix-mas (and in one caseD. inaequalis) before they penetrate the archegonial venter. The archegonial mucilage ofDryopteris filix-mas has a weak positive chemotactic influence on the spermatozoids of the twoAthyrium species. The spermatozoids ofDryopteris were never observed in the archegonia ofAthyrium. Incompatibility was not observed within and between the twoAthyrium species, withinDryopteris filix-mas or betweenAthyrium filix-femina and twoAsplenium species.

Key words

PteridophytaFilicopsidaAthyriumDryopterisIntergeneric incompatibilityinsemination processesspermatozoid paralysisbreeding systemgametophyte ecology

Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • Johann J. Schneller
    • 1
  1. 1.Institut für Systematische BotanikUniversität ZürichZürichSwitzerland