Published in American Fern Journal, in 1960, in volume 50, pages 26-32
Published in American Fern Journal, in 1960, in volume 50, pages 55-62
Published in American Fern Journal, in 1960, in volume 50, pages 78-87
Published in American Fern Journal, in 1960, in volume 50, pages 107-109
Published in American Fern Journal, in 1960, in volume 50, pages 109-113
Published in American Fern Journal, in 1960, in volume 50, pages 145-155
Published in American Fern Journal, in 1960, in volume 50, pages 194-203
Published in American Fern Journal, in 1960, in volume 50, pages 257-263
Published in American Fern Journal, in 1960, in volume 50, pages 266-267
Published in American Fern Journal, in 1960, in volume 50, pages 270-275
Published in American Fern Journal, in 1960, in volume 50, pages 276-295
Published in American Fern Journal, in 1960, in volume 50, issue 1, pages 87
Published in American Fern Journal, in 1960, in volume 50, issue 1, pages 117
Published in American Fern Journal, in 1960, in volume 50, issue 1, pages 127
Published in American Fern Journal, in 1960, in volume 50, issue 3, pages 241