Rhynchospora alba and R. fusca. 



677 



leafy, triangular. Leaves keeled, their edges and keels, as well 

 as those of the bracteas, and also the angles of the flower 

 stems, scabrous. Root creeping. In the spikelets of R. alba 

 are two flowers, both fertile. 



At Bomere Pool, and on Twyford Vownog, near Westfel- 

 ton, Shropshire, I find two varieties growing intermixed with 

 the above state of the plant, and in nearly equal abundance ; 

 one having the corymb as long as the outer bracteas, and the 

 other having the spikelets in a somewhat oval head, shorter 

 than the outer bracteas. 



c, Magnified representation of the fruit, style, stamens, and bristles. b> Magnified represent- 

 ation of one of the bristles, c, Diagram exhibiting the relative position of the bristles, 

 stamens, and fruit: the stamens are represented by the larger dots, and the fruit by a 

 straight line, d, Magnified representation of the toothed style, e, Transverse section of 

 the fruit. 



Rhyncho'spora fu'sca. {'fig. 75.) 



Spikelets in an oval head considerably shorter than the 

 broad outer bracteas ; stamens three, filaments dilated, mem- 



3 B 3 



