LILY FAMILY. Liliacex. 



Twisted Stalk 



Streptopus 



amplexifolius 



Greenish 



white 



May-July 



The leaves, strongly clasping the zigzag 

 stem, are smooth and light green, with a 

 whitish bloom beneath. The curly-se- 

 paled, greenish flower is about £ inch 

 wide, and hangs by a long, crooked, 

 threadlike stem from beneath the leaves. 

 The flower is perfect and regular, with six lance-shaped 

 sepals, and is either solitary or (rarely) in pairs. The 

 name is from the Greek, for twisted, and stalk or foot. 

 The usually solitary berry is red, round, and nearly \ 

 inch in diameter. 2-3 feet high. Cold moist woods. 

 Me., west to the Rockies, and south to N. C, in the 

 mountains. 



Differs from the preceding in its dull 

 purple-pink flower, its leaves which are not 

 whitened with a bloom beneath, but are 

 altogether green and finely hairy at the 

 edge, and its earlier period of bloom. 

 1-2| feet high. In the same situations, 

 but extending farther south to Ga. , and west to Ore. 



The genus Streptopus is dependent in part upon insect* 

 for cross-fertilization. Some of the most frequent visit- 

 ors are the bumblebees, the beelike flies Bombylius, and 

 the bees of the genus Andrenidce, still, their effect upon 

 the flower is mere probability. It takes much time and 

 attention to make sure of the results of such insect visita- 

 tions. Certainly the delicate green- white coloring of 

 one species and the magenta of the other directly indi- 

 cate the adaptation of the flowers to insect visitors. 



Streptopus 



rose us 



Dull purple 

 pink 



May-early 

 July 



28 



