Published in Bulletin of the Torrey Botanical Club, Volume 104, Issue 1, January 1, 1977, pages 10-11.
NOTE: At the time of publication, the author David J. Keil was not yet affiliated with Cal Poly.
Floristic investigations in the Cuatro Cienegas basin and nearby mountain ranges in Coahuila, Mexico, have resulted in the discovery of a previously undescribed species of Clematis (Ranunculaceae). The new species, Clematis coahuilensis, is apparently restricted to the Chihuahuan Desert Region and adjacent segments of the Sierra Madre Oriental. Its known distribution is centered in Coahuila.
1977 Torrey Botanical Society.
The definitive version is available at http://www.jstor.org/stable/2484658.