THE MOCK-OEANGE AND THE LOBELIA FAMILIES. 319 



XCIII — THE STYLIDIUM YKhllLY.—Stylididcece. 



A little family belonging chieflj'^ to the swamps of New Holland, 

 and interesting to Manchester botanists as containing the very curious 

 plant from which it takes its name, and which occurs in good green- 

 houses. The foliage is simple ; the flowers are numerous, irregular, 

 small, and inconspicuous, but distinguished from those of all other 

 exogens, by having the filaments of their two stamens blended with 

 the style into a long column, which hangs over one side of the corolla 

 until it is touched, when it starts up, and shifts to the opposite side, 

 like a frightened animal. The stigma lies in a cavity at the apex of 

 the column, concealed by the anthers. 



XCIV.— THE MOCK-ORANGE FAMILY. PMladelphdcecB. 



A little family of ornamental shrubs and small trees, foreign in 

 every species, and hence only known in gardens. The only very 

 common one, out of doors, is the deliciously fragrant " syringa," or 

 mock-orange {Philadelphus corondrius), a tree usually rising to the 

 height of eight or ten feet, with ovate, acuminate, finely serrate, and 

 glabrous leaves ; and racemes of large cream-white flowers, usually 

 four-petaled, with numerous stamens, and a powerfully-aromatic odour, 

 resembling that of the orange blossom. The Deutzia scabra occurs 

 now and then in shrubberies, and the Deutzia Jnimilis, a tiny shrub, 

 with abundant milk-white flowers, in delicate racemes, is becoming^ 

 almost as common as the fuchsia. These two may be known by their 

 oval-lanceolate leaves, and the remarkably broad and flattened fila- 

 ments of their numerous stamens. The leaves of the Deutzia scabra 

 are rough, and when examined with the microscope, found to be 

 covered with minute stars. 



XCV.— THE LOBELIA FAMILY. Lobelidcew. 



A family of elegant plants, resembling the Campanulas in habit, 

 shape of leaves, milky sap, inflorescence, and the general structure of 

 the flowers and fruit, but difiering from them in their almost invariably 

 united anthers, and the irregularity of the corolla, which consists of a 

 cylindrical tube, expanded at the upper part into five long and narrow 



