103 



American country. Specimens in herbaria from El Salvador 

 were very few, and the only list of the plants was the very im- 

 perfect "Flora Salvadorena" of Dr. J. Samuel Ortiz. The col- 

 lections made in El Salvador in 192 1-2 by Mr. Paul C. Standley 

 of the U. S. National Museum, together with extensive collec- 

 tions made then and subsequently by Dr. Salvador Calder6n, 

 co-author of the work under consideration, and other Ujcal 

 botanists, have made possible the preparation of this Preliminary 

 List of the Plants of El Salvador, which is the first approximately 

 complete flora of any Central American country to be published. 

 The introduction gives an account of collections made in ¥A 

 Salvador, of vernacular names (in which the Nahuatl element is 

 especially noteworthy), of the affinities of the Salvador flora, and 

 of persons who assisted in the collection of material for the work. 

 The list proper, containing some 2070 species, is arranged in 

 systematic order by families, the genera and species being listed 

 alphabetically. Under each species are given the vernacular 

 names (1500 of these are recorded altogether), the localities 

 where collected, notes on economic uses, these sometimes of 

 considerable length, and often (always in the case of trees or 

 shrubs) a brief note of the color of the flowers or the habit. The 

 bulk of the list consists of flowering plants and ferns, but the 

 fungi, lichens, hepatics, and mosses so far known are included, 

 although this part of the work is necessarily very incomplete. 

 Cultivated plants are included, and distinguished by an asterisk. 

 The proof reading of the list has been carefully done, and its 

 appearance is a credit alike to the authors and to the printers. 



The identifications have been made principally by Mr. Stand- 

 ley, with the assistance of specialists in various families. A 

 considerable number of species discovered by the authors or 

 their correspondents are indicated as new, without characteriza- 

 tion. A few of these are nomina nuda, but nearly- all those to 

 which the name of Mr. Standley is attached were described by 

 him in a series of papers in the Journal of the Washington 

 Academy of Sciences in 1923 and 1924. The new combinations 

 published in this work appear to be the following (all by Mr. 

 Standley) : 



Ananas magdaJenae (Andre) (p. 45), Athyrocarpiis rufipes 

 (Seub.) (p. 47), Dichorisandra hexandra (Aubl.) (p. 48), Sabadilla 

 officinalis (S. &: C.) (p. 49), Taetsia fruticosa \ar. ferrea (Baker) 



