Vascular Flora of the Miller Blue Hole and Stream, Sandusky County, Ohio

Author Institution: Department of Botany and Plant Pathology, The Ohio State University, Columbus 1

Documented Chromosome Numbers 1990: 1. Miscellaneous North American Vascular Plants

The following meiotic chromosome counts are documented by specimens deposited in Herbarium of Arizona State University (ASU). Previously uncounted taxa are represented by an asterisk (*). A double asterisk (**) indicates a new number for the species

High proportion of cactus species threatened with extinction

This is the author accepted manuscript. The final version is available from Nature Publishing Group via the DOI in this record.Consejo Nacional de Ciencia y Tecnologí

Chromosome Counts of Compositae from the United States and Mexico

Chromosome counts are reported for 126 taxa representing 122 species and 61 genera of Compositae. First reports include two genera, Stylocline (n = 14) and Chromolepis (n = 19), 17 species, two infraspecific taxa, and one interspecific hybrid. Five additional taxa have chromosome numbers differing from previously published accounts. Carminatia is reinstated to generic status

Chromosome Studies in Asteraceae from the United States, Mexico, the West Indies, and South America

Chromosome counts of Asteraceae are reported from Mexico, the United States, the West Indies, Peru, and Bolivia. First counts are reported for 27 species, eight infraspecific taxa, and three interspecific hybrids in Brickellia , Chrysanthellum, Cirsium, Egletes, Erigeron, Flaveria, Gnaphalium, Heterotheca, Hieracium, Hymenothrix, Koanophyllon, Layia, Lessingia, Pectis, Sclerocarpus, Stuessya, Tagetes and Wedelia. Counts are also reported for 196 taxa or hybrids for which chromosome numbers have been published previously. Of these, nine are new numbers. Taxonomic implications of certain counts are discussed

A NEW SPECIES OF CHOLLA (CACTACEAE: OPUNTIA) FROM COAHUILA, M\uc9XICO

Volume: 23Start Page: 292End Page: 29

Colorado Flora: Western Slope by William A. Weber

Volume: 36Start Page: 56End Page: 5