670 UEOURAPHICAL DISTUIBUTION. 



Texas claims 59. California, usually so prolific in local specios of 

 large genera, has only 11 in all, and none which are peculiar to 

 that state. 



*' Paspalum, with its 39 species, has a still more marked liking 

 for the southern country, having 29 species in Florida and 28 in 

 Texas, against 3 in New England, none in Minnesota, and only 1 in 

 Oregon. It is a genus which flourishes best in heat and moisture, 

 and is almost wholly absent from the plains or among the moun- 

 tains ; Tennessee having 9 species, the greatest number in any in- 

 land state. 



" Poa, with its 63 species, finds a place for some of its forms in 

 every state, but it is most at home in the cool mountain regions 

 of the North. Oregon and Colorado each luis 26 species, many 

 of them being local, while California follows closely witli 23, and 

 Utah with 19. New England, New York, and Pennsylvania each 

 has 10, while Texas has but 6, and Florida 3. 



*' SiegUugia {Triodia), with its 18 species, is almost wholly 

 Southern and largely Southwestern, Arizona and New Mexico having 

 10 eacli, Texas 16, and the other Gulf States 5 each. 



"• Spartina, with its 7 distinct forms, whether they be called 

 species or varieties, has some representatives in marshy soils every- 

 where. 



" Stipa, with its 29 species, has but 3 species east of the Missis- 

 sippi River and but 3 south of the Ohio, but is more abundant 

 westward, having 7 in Colorado, 15 in Arizona, and 18 in Cali- 

 fornia. 



" Trisctum finds a place for just one-half of its species in Cali- 

 fornia, while Oregon and Colorado have 4 each, and Texas 3." 



