Rosacea —Spirea. 143 
Herbaceous Species. 
1. S. Ulmaria. Meadow Sweet.—This attains a height of 
3 or 4 feet in moist places. Leaves 1 to 2 feet long, inter- 
ruptedly pinnate, serrate, clothed with a white tomentum 
beneath. Flowers white, very fragrant, in large terminal 
cymes. Carpels twisted, glabrous. This is one of our hand- 
somest native plants, of which there is a double-flowered 
Fig. 81. Spireea Aruncus. (j nat. size.) 
variety worthy of cultivation-in a large garden. It flowers in 
Summer. 
2. S. Filipéndula. Dropwort.— A tuberous-rooted plant 
