Abstract
In I924, ALICE MCCULLY MUNZ undertook a study of the southern California species of Collinsia. From her work it soon became evident that the genus as a whole needed revising, the most recent complete treatment being that of GRAY (Syn. Fl. N. Am. 2:255-257, supplement 439, i886). The next year DR. PHILIP A. MUNZ of Pomona College, while working in the library of the Gray Herbarium, got together notes and copied species descriptions for the group as a whole. It was at his suggestion and under his direction that, in the fall of I925, the present paper was undertaken. In addition to expressing appreciation to Dr. MUNZ for his help and direction, I wish to acknowledge with gratitude the loan of material and supplying of information by the following: Dr. B. L. ROBINSON and Dr. IVAN M. JOHNSTON of the Gray Herbarium, Dr. W. L. JEPSON of the University of California, Dr. F. W. PENNELL of the Philadelphia Academy of Natural Sciences, Dr. L. R. ABRAMS of Stanford University, and Dr. HAROLD ST. JOHN of the State College of Washington. To Mrs. ALICE MCCULLY MUNZ and Mr. DAVID D. KECK I express my thanks for field color notes of several species. In citing herbarium material the following symbols are used: Gray Herbarium of Harvard University (G), Dudley Herbarium of Stanford University (S), Jepson Herbarium (J), Pomona College Herbarium (P).
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