Published in Botanical Museum Leaflets, Harvard University, in 1978, in volume 26, pages 1-38

Published in Botanical Museum Leaflets, Harvard University, in 1978, in volume 26, pages 39-54

Published in Botanical Museum Leaflets, Harvard University, in 1978, in volume 26, pages 177-197

Published in Botanical Museum Leaflets, Harvard University, in 1978, in volume 26, pages 199-201

Published in Botanical Museum Leaflets, Harvard University, in 1978, in volume 26, pages 203-209

Published in Botanical Museum Leaflets, Harvard University, in 1978, in volume 26, pages 211-223

Published in Botanical Museum Leaflets, Harvard University, in 1978, in volume 26, pages 225-236

Published in Botanical Museum Leaflets, Harvard University, in 1978, in volume 26, pages 237-255