Two new species of Umbelliferae from the southwestern United States
By: [By] Mildred E. Mathias, Lincoln Constance and William L. Theobald
Published: 1969
Language: eng
Number of pages: 219
Subjects: Umbelliferae
Notes: (Repr. Madroño, vol. 20, no. 4, 1969).

Includes bibliographical references.