STATISTICS 



I. The Number of Articles. 



Total number of entries or articles, including 

 cross-references: 



Volume 1 1270 



Volume II 1263 



Volume III 659 



Volume IV 1165 



4357 



II. The Number op Plants. 



The number of genera described: 



Volume 1 820 



Volume II 623 



Volume III 351 



Volume IV 461 



2255 



Total number of species fully described (in 

 black-faced type) : 



Volume 1 2924 



Volume II 2675 



Volume III 1405 



Total number of varieties (of species) of all 

 grades: 



Volume 1 1187 



Volume II 982 



Volume III 628 



Volume IV 838 



Total number of synonyms (in Italic type): 



Volume 1 2446 



Volume II 2104 



Volume III 1243 



Volume IV 1689 



7482 

 Total number of species in supplementary lists 

 (in Italic type) : 



Volume 1 2351 



Volume II 864 



Volume III 576 



Volume IV 733 



4524 

 Total number of Latin binomial and trinomial 

 plant names accounted for ( approximate ) 24434 



III. The Number op Species (in black -faced 



ttpe) Native to North America north 



of Mexico: 



Volume 1 668 



Volume II 631 



Volume III 416 



Volume IV 704 



2419 



IV. The Dates op Publication: 



Volume I February 14, 1900 



Volume II July 18, 1900 



Volume III April 23, 1901 



Volume IV February 26, 1902 



(XV) 



