Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 49-69

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 71-90

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 91-98

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 99-104

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 105-107

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 109-130

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 131-149

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 151-159

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 161-181

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 221-242

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 243-257

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 259-272

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 273-287

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 289-320