30 FERNS AND FLOWERING PLANTS. 



RUMEX, L. 



britannica, L. swamp dock, 

 obtusifolius, L. bitter dock, 

 crispus, L. curled dock. 



s. 



SALJX, Tourn. willow. 



nigra, Marsh, black do. 



alba var vitellina, L. yellow. 



sericea, Marsh, silky-leaved. 



babylonica, Tourn. weeping. 

 SCIRPUS, L. clubrush. 



lineatus, L. 

 SCUTELLARIA, L. skull-cap. 



versicolor, Nut. 



saxatillis, Riddell. 

 SILENE, L. 



regia, Sims, royal catchfly. 

 SMILAX, Tourn. 



rotundifolia, L. greenbriar. 

 SOLANUM, L. 



dulcamara, L. 

 SOLEA, Oing. 



concolor, Ging. green violet. 



T 



TRIFOLIUM, L. 



pratense, L. red clover. 



u. 



URTICA, Tourn. 



canadensis, L. 

 UVULARIA, L. 



perfoliata, L. bellwort. 



VIOLA, L. 



palmata, L. 

 tricolor, Ait. 



T. 



ZIZANIA, Gronov. 



aquatica, L. Indian rice. 



