120 



fungus mycelium is necessary to tuber-formation in orchids, 

 though he states that infection occurs first in the root of the 

 orchid. * In view of the above facts, Hexalectris aphyllus may be 

 regarded as a true saprophyte, deriving its nourishment from the 

 disintegrating organic matter of the soil, by the direct absorption 

 of its epidermal cells, with no roots, hairs, or other organs differ- 

 entiated for absorption. 



The herbarium of the New York Botanical Garden contains 

 specimens of Hexalectris apliyllus collected as follows : Ala- 

 bama, Auburn, Lee Co., L. M. Undcnvood, 1896; vS. M. Tracy, 

 1897. Arkansas, Little Rock, Dr. H. E. Hasse, 1885. Florida, 

 Jacksonville, H. D. Keeler, 1870-76; Lake Co., Geo. V. Nash, 

 1895. Georgia, Alcovy Mt., Oconee Co., J. K. Small, 1893; 

 Kenesaw Mt, R. M. Harper, 1900; Mt. Rachel, Dalton, Percy 

 Wilson, 1900. Kentucky, Lexington, Dr. C. W. Short, 1835- 

 Missouri, Kennett, B. F. Bush, 1895 ; St. Louis, H. Eggert, 

 1 89 1. North Carolina, Swain Co., H. C. Beardslee & C. A. 

 Kofoid, 1 89 1. South Carolina, Paris Mt, J. K. Small, 1896. 

 Tennessee, Nashville, Dr. A. Gattinger, 1898 ; Wolf Creek Sta- 

 tion, Thos. H Kearney, 1897. Mexico, San Luis Potosi, Dr. J. 

 G. S chaff ner, 1879. 



Explanation of Figures 



Hexalectris aphyllus. I, cells from epidermis with overlying fungus hyphae ; 2, 

 epidermal cells (e) and raphide-containing cells (r); 3, cells from epidermis showing 

 reticulations {re); 4, rhizome; 5> rhizome with branches and scape (s). 



Laboratory of the New York Botanical Garden. 



SOME PLANTS OF SOUTHEASTERN VIRGINIA 

 AND CENTRAL NORTH CAROLINA 



By Roland M. Harper 



On my way to Georgia in June of this year I made in passing 

 through Virginia and North Carolina the following observations, 

 which will add something to our knowledge of the distribution 

 of several interesting plants. 



* Bernard, Rev. Gen. Bot. 14: 17. 1902. 



