ADVENTINA. 
68 
place and season : smaller, but flowers larger^ 
Autumnal, annual, 6 to 10 inches high, hardly 
ramose or nearly simple. Messrs. Carr owners 
of Bartram’s garden cannot account for the 
spontaneous production of these plants and sev- 
eral others in their garden^ 
Figure AutikomO. Icon. n. sp. 6. 
X must conclude here this beginning and mo- 
del of a proper Lexicon of our N. American 
Flora. To continue the whole Flora even in 
this concise form, would fill several large vol- 
umes. This specimen contains about 40 arti- 
cles and Genera, whereof many are new, and 
includes nearly 150 species, whereof many were 
undescribed. 
North America, excluding the Mexican States 
contains probably 2000 Genera and 10,000 spe- 
cies of trees and plants, exclusive ol the Cel- 
lular or Cryptogamic plants ; but including 
Palms, Grasses and Ferns, Shrubs and Vines . .. 
Our Botanists know or admit of hardly more 
than one half. Botanical Works are filled with 
plants neglected by them, because rare and lit- 
tle known. Our Herbals or Botanical Collec- 
tions contain a crowd of plants as yet unnoticed 
and undescribed. Baldwin’s Herbarium has 
been a Botanical mine for 20 years past, for Elli- 
ot, Nuttal, Torrey, &,c. and will continue so a 
long while. Nuttal will soon increase the Ore- 
gon Western Botany by perhaps 1000 N. Sp. — 
Whoever applies to the proper study of a single 
Genus or family increases or doubles our know- 
ledge of it. Torrey has lately increased our 
Cyperacea alone to 25 genera and 326 species 
and he has not exhausted this tribe ; but omit- 
