HAMAMELACE^. 152 PHILADELPHTJS. 



1. H. ARBORES'CENS. 



Leaves ovate, obtuse or cordate at base, acuminate, dentate, smooth; flow- 

 ers in fastigiate cymes. An elegant shrub, common in the Middle States, and 

 cultivated in the Northern, attaining the hight of 5 — tj feet on its native sha- 

 dy banks. Flowers small, white, becoming rose-colored, very numerous, 

 mostly radiate. July. Aug. Common Hydrangea. 



2. H. quercifo'lia. 



Cymes radiate ; leaves oblong, sinuate, lobed, dentate, tomentose beneath. 

 A beautiful shrub, with very large and numerous sterile flowers. Native of 

 Florida, cultivated in gardens. Leaves very large. Flowers becoming red- 

 dish. Oak-leaved Hydrangea. 



3. H. horte'nsis. 



Cymes radiate; Zca»es elliptical, narrowed at each end, dentate, smootli. 

 A well known cultivated plant, probably native of China, where it has long 

 been cultivated in gardens. It produces a great profusion of very elegant 

 flowers, which, at first green, pass successively through straw-color, sulphur- 

 yellow, yellow, white, blush-color and pink ; but, although mostly complete, 

 they are barren like those of the snow-ball (Viburnum Opulus). By certain 

 kinds of culture, soil, &c. they become blue. It is to be reared in large pots 

 and supplied with an abundance of water. Peat mixed with loam is said to 

 change the hue of the flowers. Changeable Hydrangea. 



Suborder III, PHILADELPHEiE. 



Petals convolute in cestivation. Capsule 3 — A-celled, loculicldal. Shrubs. 



7. PHILADE'LPHUS. 



Calyx 4 — 5-partecl, half-superior, persistent; corolla 4 — 5- 

 petaled ; style 4-cleft ; stamens 20 — 40, shorter than the pe- 

 tals; capsule 4-celied, 4-valved, with loculicidal dehiscence; 

 seeds many, arilled. 



A name used by AthenfEus for a tree now unknown. — Handsome flowering 

 shrubs. Leaves opposite, exstipulate. 



1. P. GRANDIFLO'ruS. p. p. inodorus. Mx. 



Leaves ovate, acuminate, denticulate, 3-nerved, axils of the veins hairy ; 

 stigmas 4, linear; style undivided. A very showy shrub, 6 feet hish, native 

 at the South, cultivated in shrubberies. Branches smooth, long and slender. 

 Flowers large, in a terminal umbel of 2 or 3, white, nearly inodorous. Calyx 

 divisions conspicuously acuminate, and much longer than the tube. June. 

 The upper leaves are often entire and quite narrow. Large-jlowered Syringa. 



2. P. corona'rius. 



Leaves ovate, subdentate ; styles distinct. Natn'e country unknown. It is 

 a handsome flowering shrub, often cultivated in our shrubberies. The flow- 

 ers are numerous, white, showy, resembling those of tlie orange both in form 

 and fragrance, but are more powerful in the latter respect. It grows 5 — 8 

 feet high, with opposite, smooth, ovate, stalked leaves, and opposite, reddish 

 twigs Ijearing leafy clusters of flowers. False Syringa. 



