110 LBAFLBT8. 



short, as also its peduncle, this very rough with short strigose 

 points and glandless. 



Sterile low riparian state with leaves no larger, thinner, alto- 

 gether glabrous except us to margin and the midvein beneath, 

 these much less emphatically scabrous than in the flowering 

 plants. 



Aquatic state sterile, the floating leaves larger, 4 inches 

 long or more, subcordate-oblong, acutish, glabrous in every 

 part, even marginally; petioles stouter than in aquatic states of 

 other species but 2 inches long. 



This is the smallest species of the group that I have seen, as 

 to the height of the land plant, the size of its leaves and also 

 of its spikes. It is even smaller than many of the common 

 annual Persicarias as to foliage, inflorescence, and even as to 

 stem. It is from what Mr. Andrews calls Misery Swamp, near 

 Southington, 21 Sept., 1904, which my correspondent describes 

 as "a wet meadow of possibly six acres, with a small slow stream 

 running through it. This meadow is so wet as Lo require the 

 use of rubber boots to get about in it ; there being many pools 

 of water of varying size, and the land between them very wet. 

 The plants were quite numerous all about the meadow, some 

 standing in the pools of water, some on the drier land, others 

 along the banks of the stream where they often extend down 

 into the water and assume a floating form of stem and leaves. 

 But very few flowers were found." 



I must add that under the same cover containing the new 

 species, were a number of sterile stems of P. Hartwrightii, 

 showing that this also inhabits the same swamp. 



What is Nuttallia Davidiana? 



in a lately offered recension of Osmaronia (Pitt. v. 309) I 

 made no note of Nuttallia Davidiana, not being able to iden- 

 tify it as a species of that genus. The name makes its first 

 appearance in the Kew Index, where it is credited to Baillon ; 



