Studies on the embryology of the Sipunculidae. I. The embryonal envelope and its homologue. ... By John H. Gerould.

no. 1

American natural history. Volume 3. Part 1.--Mastology. By John D. Godman.

3

A taxonomic and phytogeographic study of Brunswick Peninsula (Strait of Magellan) Hepaticae and Anthocerotae / John J. Engel.

v.41(1978)

Austral Hepaticae IX : Anastrophyllum tristanianum, a new species from Tristan da Cunha / John J. Engel.

v.38:no.7(1977)

The naturalist in Vancouver Island and British Columbia. By John Keast Lord ...

v. 2

The naturalist in Vancouver Island and British Columbia. By John Keast Lord ...

v. 1

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of John T. Mickel, Robbin C. Moran.

n.s. no.27(1991)

Ferns and fern allies of Guatemala. Robert G. Stolze ; the genus Elaphoglossum by: John T. Mickel ; the genus Thelypteris by: Alan R. Smith.

n.s. no.6(1981)