Class VI. Order ILL 85 



or umbel, with very unequal branches. Calyx leaves crowded, 

 linear-lanceolate, very acute. Perennial. 



TRIGFNM. 



106. MEDEOLA. 



MEDEOLA VIRGINICA. L. Cucumber root. 



Leaves in whorls. 



Few plants exceed this in geometrical regularity of struc- 

 ture and appearance. The stem is erect, smooth, and com- 

 monly invested with loose tufts of cotton-like down. The 

 leaves are in two whorls, the lowermost a few inches from the 

 top, consisting of about seven or eight broad lanceolate leaves, 

 the uppermost of three, and rarely four ovate ones. The flow- 

 ers are terminal, and bend down through the interstices of the 

 upper leaves. Petals greenish white, revolute. Styles three, 

 long, reflexed. The root is tuberous, with a flavour resembling 

 the cucumber. In low woods and swamps. June, July. Per- 

 ennial. 



107. TRILLIUM. 



TRILLIUM CERNUUM. L. Nodding Trillium. 



Flower on a footstalk, drooping. Willd. 



This is the only species I have observed in the neighbour- 

 hood of Boston. Leaves three, large, roundish, or rhomboid, 

 pointed. Flower terminal, from the bosom of the leaves, bend- 

 ing down so as to be sheltered beneath them. Calyx leaves 

 three. Petals three, alternate with the calyx leaves, nearly 

 white, reflexed. Stigmas three, recurved. In shady thickets. 

 May, June. Perennial. 



108. TRIGLOCHIN. 



TRIGLOOHIN MARITIMUM. L. Sea arrow grass. 



Capsule six celled, grooved, ovate. Willd. 



