Volume 12, Issue 3 (1989)
This issue of Volume 12 was published 9th January, 1990.Front Matter
Articles
The Fascinating History of the Early Botanical Exploration and Investigations in Southern California
Mildred E. Mathias
Wood and Bark Anatomy of the New World Species of Ephedra
Sherwin Carlquist
Wood and Bark Anatomy of Degeneria
Sherwin Carlquist
Wood and Bark Anatomy of Empetraceae; Comments on Paedomorphosis in Woods of Certain Small Shrubs
Sherwin Carlquist
Morphological Stasis abd Molecular Divergence in the Intercontinental Disjunct Genus Datisca (Datiscaceae)
Aaron Liston, Loren H. Rieseberg, and Thomas S. Elias
Steps Toward the Natural System of the Dicotyledons
William C. Dickison
Stem and Leaf Anatomy of the Alseuosmiaceae
William C. Dickison