Notes on the Jungermanniineae of the world

Abstract

THE SUBORDER JUNGERMANNIINEAE INCLUDES FIVE FAMILIES, 47-49 GENERA AND 570-575 SPECIES. GENERALLY, ENDEMIC TAXA HAVE A GONDWANALANDIC DISTRIBUTION WHEREAS TAXA WITH A LAURASIAN DISTRIBUTION ARE USUALLY WIDELY DISTRIBUTED; THE MAJORITY OF SPECIES IS TERRICOLOUS OR SAXICOLOUS. THE MAIN THREAT IS HABITAT DESTRUCTION, BUT THE LIGNICOLOUS AND EPIPHYTIC SPECIES SEEM TO BE MORE ENDANGERED THAN THE SAXICOLOUS AND TERRICOLOUS ONES. WITH REGARD. IN GENERAL, THE TAXA REPRODUCING BY GEMMAE ARE LESS THREATENED THAN THE TAXA REPRODUCING ONLY SEXUALLY.