liv GARDEN BOTANY. 



Order SAXIFRAGACE^l. Saxifrage Family. 



Manual, p. 141. — Several are cult, for ornament, especially shrubby species. 



Herbs : stamens 10 : pod 2-celIed and 2-beakcd, or else two pods. 1. SAXIFRAGA. 

 Shrubs, with opposite leaves : calyx coherent with the ovary. 

 Stamens twice as many as the petals : styles mostly 2. 



Flowers in cymes, the marginal ones much larger and neutral. 2. HYDRANGEA. 



Flowers panicled or racemed, and all alike : filaments dilated. 3. DEUTZIA. 



Stamens very numerous : filaments slender : style 3-5-cleft. 4. VHILADELPHUS. 



1. Saxifraga sarmentosa, Beefsteak Saxifrage, is an old-fashioned 

 house-plant, from Japan, with Strawberry-like runners ; the leaves round- 

 cordate, toothed, rather fleshy, on shaggy petioles, the lower surface reddish, 

 the upper green variegated with white ; flowers on a scape, panicled, three of 

 the petals pink and spotted, two of tltem much larger, paler, and hanging. 



S. crassifolia is a showy hardy species, with large and thick roundish 

 leaves, and an ample cluster of large rose-colored flowers on a scape, from a 

 short creeping rootstock, in early spring. 



2. Hydrangea Hortensia, the Common Hydrangea of house culture, 

 from Japan, is very smooth, with large and oval, coarsely toothed, bright- 

 green leaves, and the flowers of the cyme nearly all neutral and enlarged, blue, 

 purple, pink, or white. 



H. radiata, of the South, is hardy in our gardens, and differs from H. 

 arborescens (Man. p. 146) in having the leaves white-downy beneath. 



H. quercifolia, also of the Southern States, has the leaves sinuate- 

 lobed and pubescent underneath ; not quite so hardy. 



3. Deutzia. Fine ornamental white-flowered shrubs, from Japan, now be- 

 coming common, and mostly hardy. 



D. gracilis, the least hardy, is low and smooth, with ovate-lanceolate 

 pointed leaves, and bright white flowers. 



D. SCafora is a tall shrub, with the leaves rough, veiny, nearly sessile, 

 oblong-ovate, and the filaments not toothed on each side, as they are in both 

 the others. The shrub generally cultivated under this name is 



D. erenata, with the filaments toothed, leaves ovate, crenulate, rough, 

 short-petioled, flowering in summer. 



4. Philadelphia coronarius, Mock-Orange, also called Syringa. 

 Shrub with erect branches, oblong-ovate leaves having the taste and smell of 

 cucumbers, and crowded clusters of handsome and odorous cream-white flow- 

 ers ; styles distinct almost to the base. A common shrub, flowering rather 

 earlier and for a shorter time than 



P. inodorus, var. grandifiorus, Man. p. 146 ; varieties of which are 

 often planted ; its flowers are pure white, larger but less numerous than in 

 the last, and nearly scentless 



3S. 



Order UMBELLIFEBJE. Parsley Family. 



Manual, p. 148. — The plants of this family arc classified mainly by the fruit. 

 It will not be difficult to make out the common cultivated species, with much 

 recourse to technical characters. 



Flowers yellow : fruit flat, wing-margined : leaflets coarse, incised. Man. p. 152. PASTINACA 

 Flowers yellow : fruit terete, wingless : leaflets filiform, aromatic. 1. FCENICULUM. 



