NATURAL AND ARTIFICIAL HYBRID GENERIC NAMES OF ORCHIDS 1887-1965Published in Botanical Museum Leaflets, Harvard University, in 1966, in volume 21, pages 141-212NOTES ON THE SPECIES OF TREE DATURASPublished in Botanical Museum Leaflets, Harvard University, in 1966, in volume 21, pages 229-248
NOTES ON THE SPECIES OF TREE DATURASPublished in Botanical Museum Leaflets, Harvard University, in 1966, in volume 21, pages 229-248