The native flowers and ferns of the United States in their botanical, horticultural and popular aspects Q Science
Dudley memorial volume, containing a paper by William Russel Dudley and appreciations and contributions in his memory by friends and colleagues .. Q Science
An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian Q Science
An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian Q Science
