270 



the Piaroptis was not known as a wild plant in the United States 

 until about 25 years ago.* From the manner in which they 

 associate in Tallahassee it is not likely that the Habenaria was 

 there first, and they both may have been introduced at the same 

 time, perhaps by means of seeds carried on the feet of aquatic 



Fig. 2. Near view of the plants. Flowers and foliage of P^aro^Ms in foreground and 

 several spikes of Habenaria and leaves of Sagiltaria latifolia a little farther back. 



birds. The introduction may have been quite recent, for I 

 made my headquarters in Tallahassee during most of 1909 and 

 1910, without seeing either plant then, though the water-hyacinth 

 is quite conspicuous when in bloom, and easily visible now from 

 a railroad along which I often rode and walked. 

 College Point, 

 Long Island 

 all native distinguishes them sharply from most unnatural habitats. For descrip- 

 tions of more or less similar vegetation in other states see Blankinship, Rhodora 5: 

 131, 132. 1903 (Mass.); Nichols, Bull. Torrey Club 42: 192. 1915 (Conn.). 

 Harshberger, Bull. Torrey Club 31: 153. 1904 (Pa.); Harper, Torreya 10: 63. 

 1910 (N. C); Bull. Torrey Club 27: 322, 416. 1900 (Ga.). 



* See Small, Bull. Torrey Club 23: 125. [1896; Webber, U. S. Dept. Agr., Div. 

 Botany, Bull. 18. 1897; Curtiss, Plant World 3: 38-30. 1900. 



