Moss Flora of North America north of Mexico, in 12 parts bound in three volumes, complete

Pp. (volume I): pp. 264, 129 plates (fine line-drawings); (volume II): pp. 284, 115 plates (fine line-drawings and black-and-white photos); (volume III): pp. 276, 80 fine line-drawings  Contemporary moss-green cloth, lettered in gilt on the spine and with gilt panel lines, all 12 original printed dark blue wrappers are bound in place, sm 4to (10.5 x 8 inches).  This work is the first major revision of the North American moss flora since the appearance of Barnes and Heald’s 1896 “Analytical Keys to the genera and species of North American mosses.”  The contents are as follows: Volume I - Part 1: Andreaeaceae by A. J. Sharp, Archidiaceae by Stanley A. Cain; Part 2: Polytrichaceae by T. C. Frye, Calymperaceae by William C. Steere; Part 3: Encalyptaceae by Seville Flowers, Tortella by Inez M. Haring, Didymodon and Barbula by William C. Steere; Part 4: Aloina by Ethelda J. Craig, Tortula by William C. Steere, Pottia and Pterygoneurum by W. T. Wareham.  Volume II - Part 1: Grimmiaceae by George Neville Jones; Part 2: Erpodiaceae by William C. Steere; Splachnaceae by Geneva Sayre; Part 3: Bartramiaceae by Seville Flowers; Timiaceae and Aulacomniaceae by Geneva Sayre, Bryaceae (I) by A. LeRoy Andrews; Part 4: Bryaceae (II) by A. LeRoy Andrews.  Volume III - Parts 1-3 by A. J. Grout; Part 4: Leskea and Pseudoleskea by A. J. Sharp, Fontinalaceae by Winona H. Welch.  From the research collection of botanist Elizabeth Schmidt with her custom bookplate on the front endpaper of each volume.  No other ownership marks.  Scarce work.