Published in Hedwigia, in 1880, in volume 19, pages 17-29

Created: 2017-10-18, modified: 2017-10-18

Published in Hedwigia, in 1880, in volume 19, pages 33-45

Created: 2017-10-18, modified: 2017-10-18

Published in Hedwigia, in 1880, in volume 19, pages 132-135

Created: 2017-10-18, modified: 2017-10-18