Volume 7, Issue 2 (1970)
Front Matter
Articles
Pilularia Americana on the Santa Rosa Plateau, Riverside County, California
Robert F. Thorne and Earl W. Lathrop
A New Astragalus from NYE County, Nevada
R. C. Barnaby
Laboulbeniales on Semiaquatic Hemiptera. II. Autophagomyces, Dioicomyces, and Prolixandromyces Gen. Nov.
Richard K. Benjamin
Wood Anatomy of Echium (Boraginaceae)
Sherwin Carlquist
The Rediscovery of Abronia Alpina, A Rare Specialized Endemic of Sandy Meadows in the Southern Sierra Nevada, California
Ruth C. Wilson
Variations in Seed Germination and Morphology among Populations of Salvia Columbariae Benth. In Southern California
Brian Capon and Patrick E. Brecht
Pollination Mechanisms in Three Species of Salvia Native to Southern California
Frank J. Visco and Brian Capon
Comparative Serology of the Order Nymphaeles I. Preliminary Survey on the Relationships of Nelumbo
Jean-Pierre Simon
The Anatomy and Cytology of Pilostyles Thurberi Gray (Rafflesiaceae)
Robert James Rutherford