160 PLANTS OF MASSACHUSETTS. 



country, but most to Siberia ; about 20 species have been intro- 

 duced into England ; generally ornamental plants. The species 

 often called Lady of the Lake is now common in gardens ; 

 branched, long dense spikes of beautiful flowers, continuing long 

 in blossom. Had it been named Lady of the Gardens, the desig- 

 nation would have been very appropriate, if not so poetic. 



Limosella. L. 13. 2. Mudwort. 

 From the Latin for mud and seat, the usual place of growth. 



L. subulata. Ives. A very small flowering plant ; stem an 

 inch high, bearing one flower with radical linear leaves, as long as 

 the stem or scape ; corolla short, bell-form, 5-cleft, and unequal, 

 bluish-white ; August. Nantucket. 



L. tenuifolia. Nutt. Is also found in this State. 



LlNDERNIA. L. 13. 2. 



From F. Lindern, a botanist of Sweden ; a genus of few 

 species, all belonging to North America except one ; some of the 

 species are rather beautiful ; 2 stamens. 



L. pyxidaria. Ph. Has its specific name from the resem- 

 blance of its foliage to that of Box ; stem small, square, smooth, 

 with oblong, ovate leaves, dentate and sessile ; flowers axillary, 

 pale-blue ; August. Common to Europe. 



L. dilatata, Muhl., and L. attenuata, Muhl., often called False 

 Hedge Hyssop, both grow on inundated banks ; flower in August ; 

 of little consequence. 



Penstemon. L. 13. 2. 



Besides the 4 stamens, this genus has a long, distinct rudiment 

 of a fifth, hence its name from the Greek, five and stamen ; a 

 North American genus of a dozen species, most of which have 

 been cultivated in England ; one species common at the North. 



P. pubescens. L. Beard-tongue. A fine plant, 2 or more 



