GRASSES OF IOWA. 199 



3. SPARTINA. 



Spartina Schreb. Gen. PI. 43. 1789. Steud. Syn. PI. Glum. 214. Endli- 

 cher. Gen. PI. 94. Benthara & Hooker Gen. PI. 3: 1108. Hackel in Engler 

 and Prantl. Nat. Pflanz. Fam. II. 2: 58. Beauv. Agros. 25. pi. 7. f. 6. 

 Scribner. Bull. U. S. Dept. Agrl. Div. Agros. 20: 100. /. 74. (Rev. ed.) 



Trachynotia Michx. Fl. Bor. Am. 1: 63. 1803. 



Ponceletia Thou. Fl. Trist. d'achun. 36. 1896. 



Solenachne Steud. PI. Glum. 1: 12. 



Spikelets I -flowered, very much flattened laterally, jointed and ses- 

 sile, in two ranks on the outer side of a triangular rachis. Glumes 3, 

 unequal, lanceolate, strongly compressed-keeled, acute or bristle-pointed, 

 mostly rough-bristly on the keel ; palet thin, equalling or longer than the 

 flowering glume. Stamens 3. Styles long, more or less united. Peren- 

 nials, with simple and rigid, often reed-like culms, from extensively 

 creeping, scaly rootstocks, racemed spikes, very smooth sheaths and 

 long, tough leaves (whence the name from the Greek word for a cord, 

 such as was made from the bark of the Spartium or Broom.) 



Bentham & Hooker give the number of species as 5 or 6 ; Hackel 

 lists 7 ; found mostly in temperate and tropical regions, especially saline. 

 Three of the species are native to the Atlantic coast regions of North 

 America. Two species found in the interior of our country, especially in 

 brackish and saline soils; one species upon the Islands of Tristan, de 

 Cunha, Amsterdam and St. Paul. 



1. SPARTINA CYNOSUROIDES. 



Sparlina cynosuroides Willd. Enum. 80. 1809. Watson and Coulter. 

 Gray. Man. Bot. 627. 1890. Scribner. Grasses of Tenn. Bull. Univ. Tenn. 

 Agrl. Exp. Sta. 7: 87. /. 116. 1894. 



Spartina cy?iosuroides (L.) Willd. Beal. Grasses of N. A. 2: 397. f. 70. 

 1896. Nash in Britton and Brown. 111. Fl. 1: 175. /. 401. 1896. Scribaer. Bull. 

 U. S. Dept. Agrl. Div. Agros. 7: 179. /. 173. 1900. (3 ed.) 



Dacty lis cynosuroides L. Sp. PI. 71. 1753. 



