Published in Bulletin of the Torrey Botanical Club, in 1907, in volume 34, pages 97-104

Published in Bulletin of the Torrey Botanical Club, in 1907, in volume 34, pages 345-349

Published in Bulletin of the Torrey Botanical Club, in 1907, in volume 34, pages 583-592

Published in Bulletin of the Torrey Botanical Club, in 1907, in volume 34, issue 6, pages 305-317

Published in Bulletin of the Torrey Botanical Club, in 1907, in volume 34, pages 207-211

Published in Bulletin of the Torrey Botanical Club, in 1907, in volume 34, pages 61-84

Published in Bulletin of the Torrey Botanical Club, in 1907, in volume 34, pages 387-416

Published in Bulletin of the Torrey Botanical Club, in 1907, in volume 34, pages 465-481