Published in American Fern Journal, in 1970, in volume 60, pages 1-6

Published in American Fern Journal, in 1970, in volume 60, pages 7-12

Published in American Fern Journal, in 1970, in volume 60, pages 13-27

Published in American Fern Journal, in 1970, in volume 60, pages 28-29

Published in American Fern Journal, in 1970, in volume 60, pages 30-32

Published in American Fern Journal, in 1970, in volume 60, pages 32-34

Published in American Fern Journal, in 1970, in volume 60, pages 34-38

Published in American Fern Journal, in 1970, in volume 60, pages 38-39

Published in American Fern Journal, in 1970, in volume 60, pages 39

Published in American Fern Journal, in 1970, in volume 60, pages 49-61

Published in American Fern Journal, in 1970, in volume 60, pages 62-65

Published in American Fern Journal, in 1970, in volume 60, pages 65-67

Published in American Fern Journal, in 1970, in volume 60, pages 68-72

Published in American Fern Journal, in 1970, in volume 60, pages 73-83

Published in American Fern Journal, in 1970, in volume 60, pages 84-86

Published in American Fern Journal, in 1970, in volume 60, pages 89-97

Published in American Fern Journal, in 1970, in volume 60, pages 98-101

Published in American Fern Journal, in 1970, in volume 60, pages 103-106

Published in American Fern Journal, in 1970, in volume 60, pages 107-118

Published in American Fern Journal, in 1970, in volume 60, pages 118-119

Published in American Fern Journal, in 1970, in volume 60, pages 119-128

Published in American Fern Journal, in 1970, in volume 60, pages 129-134

Published in American Fern Journal, in 1970, in volume 60, pages 134-136

Published in American Fern Journal, in 1970, in volume 60, pages 137-143

Published in American Fern Journal, in 1970, in volume 60, pages 144-160

Published in American Fern Journal, in 1970, in volume 60, pages 161

Published in American Fern Journal, in 1970, in volume 60, pages 162-163

Published in American Fern Journal, in 1970, in volume 60, pages 164

Published in American Fern Journal, in 1970, in volume 60, pages 167-169