254 HARPER 



TIPULARIA Nutt., Gen. 2 1195. 1818. 

 Plectrurus Raf., Neogen. 4. 1825. 

 TMiscolor (Pursh) Nutt., 1. c. 

 ' (?) Limodorum unifolium Muhl., Cat. 81. 18 13. {nomen nudum.) 

 emanuel: Hammock of Little Ohoopee River, April 5, 1904. 

 More common in the upper parts of the coastal plain, and 

 northward. Also in Thomas County, a little south of our 

 limits. Fl. August. 

 Vermont to Michigan, Middle Florida, and Louisiana. 

 For notes on the mycorhiza of this species see Clifford, Bull. 

 Torrey Club 26 1635-638. pi. 372. 1899. 



POGONIA Juss., Gen. PI. 65. 1789. 

 P. divaricata (L.). R. Br. in Ait. f. Hort. Kew. ed. 2, 5: 203. 1813. 

 Moist pine-barrens, especially near branch-swamps; not 

 common, bulloch (883), emanuel (812, 816), coffee, 

 wilcox, Irwin, berrien. Rarely as many as a dozen 

 specimens can be seen at one time. Fl. May- June. 

 New Jersey to northern Florida and Alabama, mostly in the 

 pine-barrens. Also in the mountains of East Tennessee 

 (Gattinger) . 

 P. ophioglossoides (L.) Ker., Bot. Reg. 2: pi. 148. 1816. 



In similar situations to the preceding, but commoner, bul- 

 loch (2l62), TATTNALL, COFFEE, WILCOX, IRWIN, BERRIEN, 



colquitt. Fl. April-May. 

 Widely distributed in the coastal plain and glaciated region 

 of temperate Eastern North America, but rare in the 

 mountains and Piedmont region. Also reported from Japan. 



LIMODORUM L., Sp. PI. 950. 1753. 

 L. tuberosum L., 1. c. 



Moist pine-barrens, bulloch (#77), coffee, wilcox, irwin, 

 berrien. Fl. May- July. Inland to the vicinity of Amen- 

 cus and coastward to Charlton County. 



General distribution in North America similar to that of the 

 preceding. Also reported from the Bahamas (Northrop). 

 L. graminifolium (Ell.) Small, Fl. 322, 1329. 1903. 



In similar situations to the preceding, of which it is perhaps 



