826 



A TEXTBOOK OF THEORETICAL BOTANY 



Fig. 825. — RhizopJiora mucrotiata. Entangled stilt roots in a 

 Mangrove swamp. 



{Froni Wilson, " Plant Huntitig," Straiford House, New York.) 



Fig. 826. — Ficus bi'n<^halensis. Development of prop roots from the 

 horizontal branches. (From Schimper, "Plant Geography.") 



with the compact mantle of roots which encloses the stem in the Tree Ferns 

 and in their fossil relative Psaronius. 



Root Buds 



One of the most fundamental characters of roots is that they bear no 

 leaves, but they may and frequently do, in certain species, produce buds, 



