A GUIDE TO THE WILD FLOWERS ii 



red Green Dragon no. 28 



Leaves simple and undivided 

 Leaves long and narrow, sword-shaped . . Calamus Root no. 29 

 Leaves not so 



Spathe completely surrounding the spadix ; leaves arrow- 

 head-shaped Arrow-arum no. 30 



Spathe only partially surrounding the spadix; leaves heart- 

 shaped at the base 

 Leaves 15^-4 in. wide, appearing before or 



with the flower Water Arum no. 31 



Leaves 9-14 in. wide, appearing after 

 the flower Skunk-Cabbage no. 32 



27. Jack-in-the-pulpit. Arisaema triphyllum. Nearly erect, 

 1-3 ft. high. Leaves only i or 2, composed of three oval 

 leaflets, pointed at both ends and inequilateral at the base. 

 Spadix with the flov^ers mostly at the base, 2-3 in. long, 

 slightly thicker tow^ard the top, surrounded by the green 

 or purple-striped spathe. Berries red, nearly 3^ in. in diam- 

 eter. May. Nova Scotia to Florida, and v^^estward. Fig. 27. 

 Forms with a uniformly thickened spadix have been dis- 

 tinguished as Arisaema pusillum, and another with a fluted 

 spathe as Arisaema Stewardsonii. The latter is rare. 



28. Green Dragon. Arisaema Dracontiiim. Leaves mostly 

 only I, simple, but divided into 5-17 oblong segments, 

 pointed at the tip. Spadix bearing flowers at the base, the 

 naked tip often protruding 1-7 in. beyond the tubular, but 

 not hooded spathe. Berries orange-yellow. May. Maine to 

 Florida, and westward. Not on Long Island, N. Y., nor in 

 the pine barrens of New Jersey. 



29. Calamus Root. Acorus Calamus. Leaves narrow, sword 

 shaped, 2-6 ft. high, with roughened margins and prominent 

 mid-vein. Spadix 2-3 in. long crowded with flowers, the 

 spathe a narrow leaf-like appendage, often projecting much 

 beyond it. Fruit a gelatinous berry. Often forming dense 

 growths in wet places. Nova Scotia to Louisiana and west- 

 ward. June. Fig. 29. Also known as Sweet Flag. 



30. Arrow-arum. Peltandra virginica. A coarse marsh 

 plant, often growing in open water, with arrowhead-shaped 

 leaves often 25 in. long, usually smaller. Spadix long-stalked, 

 often turning downward at maturity, 3-6 in. long, en- 



