MARSH CALLA. 



77 



case, beijrs both stamens and pistils, and most of the 

 lower flowers, if not all, are perfect; 

 sometimes the upper ones consist of sta- 

 mens only. Fig. , 100 shows one of the 

 perfect flowers much enlarged. The sta- 

 mens, it will be -observed, have two-celled 



anthers, opening lengthwise. # 



MABSH OALLA. 



rig. 100. 



99. These two plants, Indian Turnip and Marsh Calla, 

 are representatives of the Order Aracece. The characters 

 which distinguish it are very well ^displayed in the two 

 types we have selected for examination. The great feature 

 is the aggregation of the flowers on a spadix. Generally, 

 though not invariably, a spathe is also present. Among 

 wild plants the Skunk Cabbage and Sweet Flag (the latter 

 without a spathe) are common Araceous types, while the 

 familiar green-house and window plant, known as the 

 Calla-Lily.will serve very well for examination in winter. 

 It may be added that the plants of this Order have a very 

 eicrid juice. 



Fig. 100. — Perfect flower of Calla. 



