Class XIII. Order I. 131 



oval, purple. Germ nearly globular, surrounded by the broad, 

 spreading stigma, expanded like an umbrella, and divided at 

 its margin into five lobes alternating with the petals. Swamps 

 and meadows. 'June. Perennial. 



160. TILIA. 

 TILIA AMERICANA. L. Lime tree or Bass wood. 



Leaves roundish-heart shaped, abruptly acu- 

 minate, sharply serrate, smooth; petals truncated 

 at top ; nut ovate. Mich. f. 



A tree of the middle size, remarkable for the neatness of 

 its foliage, and the regularity of its form. The leaves are large, 

 roundish, heart-shaped at base, finely serrated. The footstalk 

 supporting a bunch of flowers, proceeds from the centre of an 

 oblong, pale, floral leaf or bracte, as in the others of the genus. 

 Flowers greenish white, succeeded by small, hard, greyish cap- 

 sules. The wood of this tree is white, smooth, and soft. It is 

 used in the manufacture of certain kinds of furniture, and of 

 the pannels of carriages. The bark is fibrous, strong, and flex- 

 ible, and makes tolerable ropes. July. 



161. SANGUINARIA. 

 SANGUINARIA CANADENSIS. L. Blood root. Puccoon. 



One of the earliest spring flowers. Leaves radical, somc- 

 Avhat heart-shaped, parted into numerous lobes. The first leaf 

 which appears, is rolled round the stalk and flower, which it 

 seems to embrace and protect. Flowers single, erect, with two 

 deciduous calyx leaves, and eight beautiful spreading white pe- 

 tals. The leaves increase greatly in size after the flowers have 

 fallen. The root is fleshy and abrupt, and abounds with a bright 

 orange coloured juice. It possesses active, medicinal proper- 

 ties. Grows in thickets at South Boston, Cambridge, Sec. 

 April, May. Perennial. 



