DEMOGRAPHIC STATUS OF CENTAUREA-CORYMBOSA POURRET (ASTERACEAE), HORMATOPHYLLA-PYRENAICA (LAPEYR) CULLEN-AND-DUDLEY (BRASSICACEAE) AND MARSILEA-STRIGOSA WILLD (MARSILEACEAE-PIERIDOPHYTA), 3 RARE PLANTS IN THE SOUTH OF FRANCE
B. Colas et al., DEMOGRAPHIC STATUS OF CENTAUREA-CORYMBOSA POURRET (ASTERACEAE), HORMATOPHYLLA-PYRENAICA (LAPEYR) CULLEN-AND-DUDLEY (BRASSICACEAE) AND MARSILEA-STRIGOSA WILLD (MARSILEACEAE-PIERIDOPHYTA), 3 RARE PLANTS IN THE SOUTH OF FRANCE, Acta botanica gallica, 143(2-3), 1996, pp. 191-198
During 1994, we studied the demographic status of three rare species o
f the south of France : Centaurea corymbosa Pourret (Asteraceae), Herm
otophylla pyrenaica (Lapeyr.) Cullen & Dudley (Brassicaceae) et Marsil
ea strigosa Willd. (Marsileaceae-Pteridoridophyta). The number of popu
lations and the population sizes are given. Some observations on biolo
gy and life-history traits are also discussed.