The development of the shoot, male flower and seedling of Batis maritima L. von Johnson, Duncan S.

Development of antheridium and spermatozoid in Plagiochila adiantoides Lindb. (Swartz) von Johnson, Duncan S.

The influence of insolation on the distribution and the developmental sequence of the flowers of the giant cactus of Arizona von Johnson, Duncan S.

On the development of Saururus cernuus L. von Johnson, Duncan S.

Structure and development of Regnellidium diphyllum von Johnson, Duncan S., Chrysler, Mintin A.

Littoral vegetation on a headland of Mt. Desert Islands, Maine von Johnson, Duncan S., Skutch, Alexander Frank

A maritime station for Schistostega osmundacea von Johnson, Duncan S.

Invasion of virgin soil in the tropics von Johnson, Duncan S.

On the dEndosperm and embryo pf Peperomia pellucida von Johnson, Duncan S.

On the leaf and sporocarp of Pilularia von Johnson, Duncan S.

Littoral vegetation on a headland of Mt. Desert Islands, Maine von Johnson, Duncan S., Skutch, Alexander Frank

The fruit of opuntia fulgida a study of perennation and proliferation in the fruits of certain cactaceæ von Johnson, Duncan S.

Inhaltsverzeichnis

The relation of plants to tide-levels a study of factors affecting the distribution of marine plants von Johnson, Duncan S., York, Harlan H. 1875-1961

On the development of the leaf and sporocarp in Marsilia quadrifolia, L. von Johnson, Duncan S.

On the Development of the Leaf and Sporocarp in Marsilia quadrifolia, L. dissertation von Johnson, Duncan S.

Littoral vegetation on a headland of Mt. Desert Islands, Maine von Johnson, Duncan S., Skutch, Alexander Frank