108 



FLORESTINA Cass. Bull. Soc. Philom. 175 (1815). 

 Florestina tripteris DC. Prodr. 5 : 655 (1836). 



On the edge of the "Flats" at Corpus Christi, at the base of the 

 plateau. 



June 8 (1828) ; type locality, Laredo, Texas. 



POLYPTERIS Nutt. Gen. 2; 139 (1818). 

 Polypteris callosa (Nutt.) A. Gray, Proc. Am. Acad. 19: 30 (1883). 



Stevia callosa Nutt. Jour. Acad. Phila. 2: 121 (1821). 

 An occasional plant was found in the then dry and gravelly beds of 

 Town Creek and the Guadalupe, altitude 1600 feet. Probably plentiful, 

 but just coming into bloom. 



June 27 (1919); type locality, "gravelly banks of the Arkansas." 

 Polypteris Hookeriana (T. & G.) A. Gray, Proc. Am. Acad. 19 : 

 3 i-(iS8 3 ) 



Palafoxia Hookeriana T. & G. Fl. N. A. 2: 368 (1842). 

 Growing in sand near the shore at the Oso, and in the shell deposit 

 at the upper end of Corpus Christi.- Rather plentiful at both places. 

 April 12 (1562); type locality, Texas. 



HYMENATHERUM Cass. Bull. Soc. Philom. 1817, 12 (1817). 

 Hymenatherum tagetoides (T. & G.) A. Gray, Mem. Am. Acad. 



4: 88(1849). 



Dysodia tagetoides T. & G. Fl. N. A. 2 : 361 (1842). 



Found only on the upper slopes of the hills at Kerrville, altitude 1800- 

 1900 feet, growing in open, grassy pasture land. Plants scattered, but 

 plentiful. 



June 14 (1855); type locality, Texas. 

 Hymenatherum Wrightii A. Gray, Mem. Am. Acad. 4: 89 (1849). 



At Corpus Christi, near the- water tank of the Texas and Mexican Rail- 

 way, this species grew in dense patches in an inclosed piece of ground. 

 A few plants were also found at the Oso, where they were larger and 

 more vigorous, the situation being more favorable for growth. 



March 23 (1494) ; type locality, Texas. 



HELENIUM L. Sp. PL 886 (1753). 

 Helenium elegans DC. Prodr. 5 : 667 (1836). 



This handsome, though small -flowered species, was found at Kerrville 

 in moist or wet ground, ranging from the banks of Town Creek and the 



