Chromosome numbers in the Compositae-III. Certain Mexican species B. L. TurnerMarshall C. Johnston OriginalPaper Pages: 64 - 69
Asplenium X Gravesii in Kentucky Dale M. SmithTruman R. BryantDonald E. Tate OriginalPaper Pages: 69 - 72
Chromosome numbers and breeding systems in Pycnanthemum (Labiatae) Henrietta L. Chambers OriginalPaper Pages: 116 - 128