Published in Bulletin of the Torrey Botanical Club, in 1897, in volume 24, pages 28-32

Published in Bulletin of the Torrey Botanical Club, in 1897, in volume 24, pages 81-86

Published in Bulletin of the Torrey Botanical Club, in 1897, in volume 24, pages 137-147

Published in Bulletin of the Torrey Botanical Club, in 1897, in volume 24, pages 207-209