Enumeration of the ligneous plants of northern China ...
Subtitle: pt. 1-4
Published: 1923
Place of publication: Cambridge, Mass
Language: eng
Subjects: Trees; Shrubs
Notes: Reprinted from: Journal of the Arnold Arboretum. 1923. 4: 118-192 ; 1924. 5: 137-224 ; 1926. 7: 151-227. 1932. 13: 385-409

Part 4, Additions and continuation.