Published in American Fern Journal, in 1972, in volume 62, pages 1-8

Published in American Fern Journal, in 1972, in volume 62, pages 16-20

Published in American Fern Journal, in 1972, in volume 62, pages 21

Published in American Fern Journal, in 1972, in volume 62, pages 22-23

Published in American Fern Journal, in 1972, in volume 62, pages 24-26

Published in American Fern Journal, in 1972, in volume 62, pages 27-29

Published in American Fern Journal, in 1972, in volume 62, pages 30

Published in American Fern Journal, in 1972, in volume 62, pages 33-43

Published in American Fern Journal, in 1972, in volume 62, pages 44-46

Published in American Fern Journal, in 1972, in volume 62, pages 47-48

Published in American Fern Journal, in 1972, in volume 62, pages 49-56

Published in American Fern Journal, in 1972, in volume 62, pages 57-64

Published in American Fern Journal, in 1972, in volume 62, pages 65-79

Published in American Fern Journal, in 1972, in volume 62, pages 82-87

Published in American Fern Journal, in 1972, in volume 62, pages 88-92

Published in American Fern Journal, in 1972, in volume 62, pages 93-95

Published in American Fern Journal, in 1972, in volume 62, pages 95

Published in American Fern Journal, in 1972, in volume 62, pages 96

Published in American Fern Journal, in 1972, in volume 62, pages 97-99

Published in American Fern Journal, in 1972, in volume 62, pages 100

Published in American Fern Journal, in 1972, in volume 62, pages 101-120