DICOTYLEDONS 



209 



with the parts in threes and 

 with a brightly colored and 

 often conspicuous corolla. 

 They have bulbs, rootstalks, 

 etc., which enable them to 

 grow rapidly at the coming 

 of a favorable season. The 

 yucca, well known in our South- 

 west, is one of this family. 



The Arum Family. The 

 members of this family may be 

 told by their peculiar flower 

 cluster, a spikelike structure 

 known as a spadix. In the 

 Jack-in-the-pulpit this is sur- 

 rounded by a large leaflike 

 structure called the spathe. 

 The calla lily and skunk cab- 

 bage are our best-known ex- 

 amples. 



The Orchid Family. These 

 plants are noted for their 

 beautiful flowers. In the 

 tropics one member of this 

 group is conspicuous because 

 of its habit of living in trees 

 as an air plant or epiphyte. A 

 few orchids live in secluded 

 places in our north temperate 

 zone, but most have disap- 

 peared because of overpicking. 

 Never pick an orchid, if you 

 are lucky enough to find one ; 

 photograph it instead. 



Dicotyledons. Legume Fam- 

 ily. This is one of the best- 

 known and most easily recog- 



L. W. j 

 Perennial peas (legume family) 



Srownell 





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L^&IIS 



L. W. Brownetl 

 Wild strawberry blossoms (rose family). 



