16 CHLORIS BOREALI-AMERICANA. 



doque latens, Carolinse Septentrionalis juxta Salem, ubi 

 detexit beat. Schweinitz ; necnon sub scopulo " Table 

 Mountain " dicto cl. Sullivant mecum legit. Prope 

 urbem Baltimore in Marylandia, cl. Griffith. Prime 

 vere floret. '' 



Very few phanerogamous plants of the United States are so little 

 known as the Schweinitzia. Excepting the discoverer, whose 

 name it bears, no botanist had met with it until it was gathered 

 in the neighbourhood of Baltimore a few years ago by Dr. Griffith. 

 In the autumn of 1843, Mr. Sullivant and myself were so fortunate 

 as to find a few specimens at the base of Table Mountain, North 

 Carolina.* Our specimens were growing in a cluster from the 

 roots of Galax, upon which they appeared to be parasitic. As we 

 removed the whole mass, with the hope of securing the plant in a 

 living state, we did not examine the mode of attachment, which is 

 so difficult to make out in other Monotropeae, and which is so 

 doubtful in the case of Monotropa itself, f The specimens already 

 (in September) bore well formed flower-buds, some of them nearly 

 full sized and ready for expansion in the spring. From them were 

 taken the specimens represented in the right and left hand figures 

 of the accompanying plate. The central figure, from a specimen 

 gathered by Dr. Griffith, represents the plant soon after flower- 

 ing ; when the short spike, which was before drooping, becomes 

 erect. 



* Amer. Journal of Science and Arts, New Series, Vol. I., p. 18. 



+ The development of Monotropa, and its mode of parasitism, if there be any, is 

 a subject upon which a series of original observations is greatly needed, and which 

 would well reward the attention of a careful observer. 



