Lawton, Elva, 1896- <br/><br/>
Keys for the identification of the mosses of the Pacific Northwest 
Elva Lawton 
 - Nichinan  Hattori botanical laboratory  1971 
 - 66 p.; 26 cm. 
<br/><br/> 'Reprinted from the author's Moss flora of the Pacific Northwest.' 
<br/><br/><label>LCCN: </label>72-190513 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mosses--Northwest, Pacific--Identification<br/>Mosses--Identification