ARUM FAMILY. Araceae. 



plant is 1-3 feet high, and grows in wet woods or low 



grounds from Me., south, and west to Minn. 



. The rich green leaves are arrow-shaped 



Arrow Arum .,, . 



Peltandra with one prominent vein or nerve. The 



undulata flowers are staminate and pistillate on the 



Green same plant, covering the long tapering 



May-June spadix ; the pointed green spathe, rolling 



and wavy on the margin, is 4-7 inches long. The clus- 

 ter of berries is green, and is at first enclosed in a green 

 sheath, the fleshy base of the spathe. The plant grows 

 1-1 £ feet high, in shallow water, from Me. south, and 

 west to Mich. It derives its name from rtsXry, a target 

 or shield, and vvrfp, stamen, from the targetlike form 

 of the latter. 



Water Arum ^ little swamp flower resembling the 



Calla palustris so-called calla-lily ; the latter is, of course, 

 White not a lily, and, curiously enough, not a 



June true calla, it is a Ricliardia. The deep 



green leaves of the water arum are long-heart-shaped 

 with long stems. The open and rolling edged spathe is 

 white above and greenish beneath. The yellow spadix 

 is entirely covered with flowers, the lower ones perfect, 

 i. e., with all the parts complete, and the upper ones 

 often staminate. Fertilization is assisted by insects and 

 pond-snails. The berries, red and distinct, in a head like 

 those of the Jack-in-the-pulpit, are ripe in August. The 

 plant grows 5-10 inches high and is at home in cold 

 bogs, from Me., south to Va., and west to Minn. The 

 name Calla is ancient and obscure, palustris is the Latin 

 name for swamp. 



12 



