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The Eragrostis Pectinacea-pilosa Complex in North and Central America
Eragrostis is a world-wide genus of approximately 300 species. (Eragrostis pectinacea is a species of grass known by the common name tufted lovegrass.) These are primarily tropical and warm temperate in distribution, the genus being especially well-developed in tropical and Southern Africa. The Eragrostis pectinacea-pilosa
complex is a group of seven taxa: six species, one of which is composed of two varieties. All but one variety of one species are restricted geographically to North and Central America, the exceptional variety having a pantropical distribution. All are annuals, three of the taxa are widespread weeds, three are narrow endemics, and one is infrequent within its range.
For the most part, this paper is adapted from a dissertation accepted by the University of Michigan in partial fulfillment of the requirements for the degree of Doctor of Philosophy in 1969.
Dr. Stephen D. Koch is now on the faculty of the Department of Botany, Postgraduate College, National School of Agriculture, Chapingo, Mexico. For the past five years he had taught at North Carolina State University, Raleigh, where he was an assistant professor in the Department of Botany. He held an earlier teaching position at Duke University. He received his B.A. degree from Swarthmore College in Pennsylvania, and his Ph.D. from the University of Michigan at Ann Arbor.
complex is a group of seven taxa: six species, one of which is composed of two varieties. All but one variety of one species are restricted geographically to North and Central America, the exceptional variety having a pantropical distribution. All are annuals, three of the taxa are widespread weeds, three are narrow endemics, and one is infrequent within its range.
For the most part, this paper is adapted from a dissertation accepted by the University of Michigan in partial fulfillment of the requirements for the degree of Doctor of Philosophy in 1969.
Dr. Stephen D. Koch is now on the faculty of the Department of Botany, Postgraduate College, National School of Agriculture, Chapingo, Mexico. For the past five years he had taught at North Carolina State University, Raleigh, where he was an assistant professor in the Department of Botany. He held an earlier teaching position at Duke University. He received his B.A. degree from Swarthmore College in Pennsylvania, and his Ph.D. from the University of Michigan at Ann Arbor.
96 pages, Paperback
First published March 1, 1974
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