Published in American Fern Journal, in 1964, in volume 54, pages 1-9

Published in American Fern Journal, in 1964, in volume 54, pages 9-19

Published in American Fern Journal, in 1964, in volume 54, pages 20-25

Published in American Fern Journal, in 1964, in volume 54, pages 25-38

Published in American Fern Journal, in 1964, in volume 54, pages 38-39

Published in American Fern Journal, in 1964, in volume 54, pages 57-62

Published in American Fern Journal, in 1964, in volume 54, pages 62-67

Published in American Fern Journal, in 1964, in volume 54, pages 68-70

Published in American Fern Journal, in 1964, in volume 54, pages 71-73

Published in American Fern Journal, in 1964, in volume 54, pages 73-76

Published in American Fern Journal, in 1964, in volume 54, pages 76-82

Published in American Fern Journal, in 1964, in volume 54, pages 82-87

Published in American Fern Journal, in 1964, in volume 54, pages 87-89

Published in American Fern Journal, in 1964, in volume 54, pages 89-91

Published in American Fern Journal, in 1964, in volume 54, pages 91-93

Published in American Fern Journal, in 1964, in volume 54, pages 93-94

Published in American Fern Journal, in 1964, in volume 54, pages 94

Published in American Fern Journal, in 1964, in volume 54, pages 95-98

Published in American Fern Journal, in 1964, in volume 54, pages 105-113

Published in American Fern Journal, in 1964, in volume 54, pages 113-126

Published in American Fern Journal, in 1964, in volume 54, pages 126-128

Published in American Fern Journal, in 1964, in volume 54, pages 129-136

Published in American Fern Journal, in 1964, in volume 54, pages 141-143

Published in American Fern Journal, in 1964, in volume 54, pages 143-146

Published in American Fern Journal, in 1964, in volume 54, pages 147-148

Published in American Fern Journal, in 1964, in volume 54, pages 149-150

Published in American Fern Journal, in 1964, in volume 54, pages 150-151

Published in American Fern Journal, in 1964, in volume 54, pages 151-152

Published in American Fern Journal, in 1964, in volume 54, pages 189-196

Published in American Fern Journal, in 1964, in volume 54, pages 197-205

Published in American Fern Journal, in 1964, in volume 54, pages 206-207