258 PLANTS OF MASSACHUSETTS. 



small and slender plant on the borders of ponds, in dense cespi- 

 tose patches and tufts ; a dehcate plant. 



<S. capillaris^ L. and Muhl. Found near Boston ; a small, 

 densely cespitose plant, in sandy fields ; occurs also in other 

 parts of the State. 



S. subsquarrosiis. Muhl. Grows in tufts about 2 inches high, 

 capillary, with fine bristly leaves, on sandy banks of rivers ; 

 Deerfield. 



/S. intermedins. Muhl. About 2 inches high, cespitose and 

 diffuse, strong ; projects from running water. 



S. planifolius. Muhl. Rises 4 or 5 inches high, and has 

 wide grassy leaves, rough on their edges, and long as the plant ; is 

 spread over the State on cold and hard soils, and in open woods 

 or fields ; very different in appearance from the rest of the genus, 

 as all remark who notice the plant ; common, but not very abun- 

 dant. 



S. capitatus. Muhl. Grows in muddy bottoms of pools and 

 sluggish streams, in clusters, sometimes forming small clumps. 

 It is S. obtusus, Willd., and distinguished by its obtuse, sub- 

 globose heads of flowers. It is not S. capitatus, L., which 

 grows in the Southern States. Torrey. 



S. tenuis, Willd., and S. quadrangulatus, Muhl. Catalogue. 

 A slender rush-grass, growing in wet places, and shallow waters, 

 leafless, with a slender head of flowers ; 4-8 inches high ; begins 

 to flower early in spring ; Boston, Salem, Amherst, Berkshire 

 County, and probably throughout the State. 



S. autumnalis. Muhl. Found in situations like the last ; 

 Amherst, Boston ; July to October. Culm 8-12 inches high, 

 cespitose. This is Fimbristylis, Vahl., from the form of the 

 style. 



