VIII PREFACE. 



dentally to an inquiry into the natural supply of food for fishes 

 in those lakes. The remaining papers are: A Revision of the- Sub- 

 genus Cyclobothra of the Genus Calochortus, by the late Joseph 

 H. Painter; A Revision of the Cichoriaceous Genera Krigia, Cynthia, 

 and Cymbia, by Paul C. Standley, assistant curator in the Division 

 of Plants; New or Noteworthy Plants of the Eastern United States, 

 by E. S. Steele, editorial assistant in the Division of Plants; and 

 Two New Shrubs from Lower California, by Paul C. Standley and 

 E. A. Goldman. 



Part 11, an additional paper by Mr. Standley, is an account of the 

 Mexican and Central American plants of the family Allioniaceae. 

 It follows a similar paper dealing chiefly with the representatives 

 of the family in the United States, published in volume 12 of this 

 series, and embodies the results of field work and of a study of speci- 

 mens found in all the larger herbaria of this country. As in many 

 other f amilies of Mexican plants, the material of the Allioniaceae was 

 found in a very confused state. The total number of representatives 

 of the family reported from the region under discussion is 113, 

 several of which are described here for the first time. 



Part 12 is the third number of Mr. Pittier's series already mentioned. 

 An imperfectly known group of the mulberry family is revised, 

 with the addition of three new species, and new species are described 

 and old ones discussed in several other families. A large part of 

 the species are trees, some of them of economic value. The results 

 offered are based on actual field work by Mr. Pittier. 



Frederick V. Coville, 

 Curator of the United States National Herbarium. 



