MISCBtLANBOUS SPECIFIC TYPES. — III. Ill 



mature capsule : bottom of corolla only sparingly granular, 

 the granulation of the filaments not sessile. 



Stout low plant growing along sloughs and ditches near 

 I^eeds, N. Dakota, and collected by Dr. IvUnell in flower 6 

 July, in fruit 14 Aug., 1910. 



The almost constantly verticillate character of the copious 

 inflorescence of these two species marks them almost as a 

 group of their own ; this notwithstanding that in some other 

 species one observes an occasional whorl of three or four leaves 

 and flowers. In these it is perfectly and strongly character- 

 istic, though this is far from being the principal character in 

 either species. 



Steironema pumiIvUM. Not slender, nor yet stout as the 

 foregoing, arising from a system of slender horizontal root- 

 stocks, 3 to 7 inches high, simple except at summit and 

 densely leafy : leaves all rather narrowly ovate, subcordate, 

 very acute, 1 to 1^ inches long, on short ascending or spread- 

 ing petioles, these distinctly ciliate throughout : flowers only 

 2 to 6, all at the summit of the stem : calyx-segments oblong- 

 lanceolate, not notably acute, little surpassing the capsule : 

 granulation of the bottom of the corolla dense, also extending 

 conspicuously half way up the segments : anthers much 

 longer than the filaments, these broad, but hardly subulate. 



Collected in damp meadows at I,eeds, North Dakota, 21 

 July, 1910, by Dr. Lunell, who in full notes accompanying 

 the specimens, has clearly pointed out its characters as distinct 

 from the larger plants of the region, which the collector has 

 taken for 6'. ciliatum of the books, namely, 



Steironema membranaceum. Much more slender than 

 S. ciliatum, 2 feet high, simple to the summit and there very 

 few-flowered, all but the terminal axils vacant : leaves all 

 ovate, acute, obtuse at base but not subcordate, 2 to 3 inches 

 long, deep-green and of thinnest texture, the margins deli- 

 cately and closely serrulate-ciliolate, their petioles }^ to ^ 

 inch long, distinctly but delicately ciliate : segments of calyx 



