106 I^BAFIvBTS. 



the Atlantic States ; but the corollas are very different in form 

 as well as color. 



BaTrachitjm usnkoidbs. Doubtless perennial, certainly 

 wholly submersed, the naked basal part of the long stems 

 slender, gradually stouter upwards, from below the middle 

 made up of short internodes, the ample dense coarsely capil- 

 lary and sessile leaves concealing the stem whether in the 

 water or withdrawn from it ; leaf-segments unusually coarse 

 and firm, not collapsing, scarcely reduceable by pressure and 

 not drying to a flattened mass, the whole branch thus densely 

 clothed appearing much like a tuft of some dark-colored 

 lichen : flowers on stout peduncles and little exserted from the 

 mass of usneoid leaves ; sepals oval, glabrous, spreading ; 

 corolla white, apparently almost % inch wide in full expan- 

 sion : carpels not seen. 



lyake City, Arkansas, collected by A. H. Howell, 1 May, 

 1910. The label carries no information as to whether this 

 grows in stagnant or running water. By the density, coarse- 

 ness and stiffness of its foliage, it is strongly in contrast with 

 all other species known to me. 



Gerardia Neoscotica. lyow annual, 6 to 9 inches high, 

 the smaller simple, the larger branched from near the base, the 

 branches ascending, floriferous almost throughout and very 

 leafy : stem and branches plainly angular, wholly glabrous : 

 leaves large for the plant, an inch long or more and of notable 

 breadth, being narrowly lance-linear rather than linear, only 

 sparsely scabrous-roughened above, the margins strongly 

 scabrous-serrulate : flowers small for the plant, mostly alter- 

 nate, shortly and slenderly pedicellate ; calyx-tube veinless, 

 its teeth or segments notably large and foliaceous, also obvi- 

 ously unequal, the larger exceeding the tube in length, glabrous 

 except as to the plainly scabrous-serrulate margins ; corolla 

 purple, little exceeding a half inch in length, the lobes of the 

 not widely spreading limb extremely short. 



Known only as collected by the writer, in an open space 



