YELLOW-EYED GRASSES. 427 



XYRIDACEAE. Yellow-eyed Grass Family. 

 XYRIS L. Sp. PL 1 : 42. 1753.' 



About 50 species, mostly of the tropical and subtropical zone. Perennials, chiefly 

 in America, Australia, Africa. North America, 14. 



Xyris ambigua Beyr. in Kunth, Enum. 4 : 13. 1843. 



BEYRICH'S YELLOW-EYED GRASS. 



Xyris stricta Chap. Fl. 500. 1860. 



X. rhomMpetala Sauv. Fl. Cub. 160. 1868. 



Chap. Fl. 500. 



CUBA. 



Louisianiau area. North Carolina to Florida, west to eastern Texas. 



ALABAMA: Lower Pine region. Coast plain. Sandy wet borders of pine-barren 

 streams, ponds, ditches. Washington County, Yellowpine. Escambia, Mobile, and 

 Baldwin counties. Flowers yellow, July, August; frequent. 



Type locality: "Georgia, adripas paludum." 



Herb. Geol. Surv. Herb. Mohr. 



Xyris flexuosa Muhl. Cat. 5. 1813. BULBOUS YELLOW-EYED GRASS. 



Xyris bulbosa Kunth, Enum. 4 : 11. 1843. 



EU. Sk. 1 : 51. Gray, Man. ed. 6, 537. Chap. Fl. 500. Coulter, Contr. Nat. Herb. 

 2 : 442. 



Alleghenian to Louisianian area. Ontario and New England west to Minnesota, 

 south to New Jersey, Florida, Texas, Arkansas, and southern Missouri. 



ALABAMA: Mountain region to the Coast plain. Wet sandy soil. Lee County, 

 Auburn (Baker $ Earle). Dekalb County, De Soto Falls. Cullman County, 800 fe< t 

 altitude. Chilton County (E. A. Smith). Washington County, Yellowpine. Autauga 

 and Mobile counties. July, August ; frequent. 



Type locality : " Georgia, Virginia/' 



Herb. Geol. Surv. Herb. Mobr. 



Xyris elliottii Chap. Fl. 500. 1860. ELLIOTT'S YELLOW-EYED GRASS. 



Chap. FL 1. c. 



Louisianian area. South Carolina to Florida, Mississippi. 



ALABAMA : Coast Pine belt. Coast plain. Sandy swamps. Clarke County, Choc- 

 taw Corner. Monroe County, Claiborne. Escambia, Mobile, and Baldwin counties. 

 July to October; common. 



Type locality : " Wet grassy pine barrens, Florida to South Carolina." 



Herb. Geol. Surv. Herb. Mohr. 



Xyris commuiiis Kunth, Euum. 4 : 12. 1843. COMMON YELLOW-EYED GRASS. 



Xyris difformis Chap. Fl. 500. 1860. 



X. gymnoptera Griseb. Cat. PL Cub. 223. 1866. 



X. laxifolia Mart. Flora, 24, Beibl. 2 : 53. 1841. 



Chap. FL 1. c. 



CUBA, WEST INDIES TO BRAZIL, ARGENTINA. 



Carolinian to Louisianian area. Maryland to Florida and western Louisiana. 



ALABAMA: Lower hills to Coast plain. Damp grassy banks, etc. Dekalb County, 

 Valley Head. Lee County (J. D. Smith). Mobile County. July; infrequent. 



Type locality: "Cajenna (Deaf.), Caracas (E. Otto). 



Herb. Geol. Surv. Herb. Mohr. 



Xyris serotina Chap. FL 500. 1860. LATE-FLOWERING YELLOW-EYED GRASS. 



Louisianiau area. Western Florida. 



ALABAMA: Coast plain. Shallow pine-barren ponds. Mobile County, Kelly's pond. 

 October; rare. 



Type locality: " Pine-barren swamps, west Florida." 



Herb. Geol. Surv. Herb. Mohr. 



Xyris caroliniana Walt. Fl. Car. 69. 1788. 



Xyris elata Chap. Fl. 501. 1860. 



Gray, Man. ed. 6, 537. Chap. FL 501. 1860. 



Alleghenian to Louisianian area. New England, New York, south to Florida and 

 the Gulf States, to western Louisiana. 



1 Heinrich Eies, Review of the North American species of Xyris, Bull. Torr. Club, 

 vol. 19, pp. 35 to 43. 1892. 



