626 JUNG ACRE. 



* * * Stems leafy ; leaves, cylindrical, or but slightly 



flattened, jointed internally. 



* The most common species in this group are : 



J. acutiflorus (Sharp-flowered jointed Rush), a slender 

 plant, 1 2 feet high, with slightly flattened stems and 

 leaves, and terminal panicles of brown sharp-pointed 

 flowers : J. lampocarpus (Shining-fruited jointed Rush), 

 resembling the last, but distinguished by its large, 

 brown, glossy capsule : J. obtusiflorus (Blunt-flowered 

 jointed Rush), rather smaller than J. acutiflorus, and 

 well distinguished by its blunt flowers ; and 7. uliginosus 

 (Lesser Bog jointed Rush), a small and very variable 

 plant, 3 8 inches high, bearing a few clusters rather 

 than panicles of flowers. All these are common in boggy 

 ground. 



* * * * Stems leafy ; leaves not cylindrical nor jointed. 



* In this group there are but two common species ; 

 J. compressus (Round-fruited Rush), a slender plant, 

 about a foot high ; the leaves are linear, and grooved 

 above ; the stem is slightly flattened, and terminates in 

 a panicle of greenish-brown flowers.; the capsule is 

 nearly round, with a point : and J. bufonius (Toad 

 Rush), a very small species, 4 6 inches high, with re- 

 peatedly forked stems, and solitary green flowers, which 

 grow mostly on one side of the stem. For several other 

 species growing among the mountains in the north, the 

 student is referred to "Hooker and Arnott's British 

 Flora." 



2. LUZULA (Wood-Rush). 



1. L. sylvdtica (Great Wood-Rush). Leaves hairy; 

 * panicle spreading, much branched ; flowers in clusters 

 of about 3. Woods, abundant. A common woodland 

 plant, with more of the habit of a Grass than a Rush,, 

 The leaves are flat and clothed with long, scattered, 

 white hairs ; the stalk rises to the height of about 2 

 feet, and bears a terminal loose cluster of brownish 



