156 HAMAMELACE.E. (WITCH-HAZEL FAMILY.) 



12. PHILADELPHUS, L. SYRINGA. 



Calyx-tube turbinate, cohering with the ovary , the limb 4 - 5-parted, persist- 

 ent. Petals 4-5, convolute in the bud. Stamens 20-40, shorter than the 

 petals. Styles mostly 4, more or less united. Capsule mostly 4-celled, loculi- 

 cidally 4-valved, many-seeded. Shrubs with simple opposite 3 - 5-ribbed leaves, 

 without stipules, and large white solitary or cymose flowers. 



1. P. grandiflorus, Willd. Branches and leaves pubescent; leaves 

 ovate or ovate-oblong, acuminate, sharply serrate ; flowers solitary, or 2 or more 

 in a terminal cyme ; calyx-lobes ovate, acuminate, much longer than the tube. 

 Banks of streams, Florida to North Carolina. April and May. Shrub 6 - 10 

 high, with long and slender branches. 



2. P. inodorus, L. Smooth ; leaves entire or nearly so, ovate or ovate- 

 oblong, acute ; calyx-lobes ovate, acute, as long as the tube. Upper districts 

 of Alabama to South Carolina. May. Flowers smaller than in the last. 



3. P. hirsutus, Nutt. Hairy ; leaves small, ovate, acute, sharply serrate ; 

 flowers 1-3 together, terminal, and on short lateral branches ; calyx-lobes ovate, 

 as long as the tube. North Carolina and Tennessee, A small shrub. Leaves 

 1' lon. Flowers ' wide. 



ORDER 65. HAMAMELACEJG. (WITCH-HAZEL FAMILY.) 



Trees or shrubs, with Alternate leaves, deciduous stipules, and clustered 

 or spiked, often polygamous or monoecious flowers. Calyx-tube coherent 

 with the base of the ovary. Petals 4-5, long and linear, or none. Sta- 

 mens twice as many as the petals, with the alternate ones sterile, or nu- 

 merous and perfect. Styles 2. Capsule woody, 2-celled, opening at the 

 summit. Seeds anatropous, bony, 1 - 2 in each cell. Embryo large and 

 straight, in scarce albumen. 



Synopsis. 



1. HAMAMELIS. Calyx-lobes and petals 4. Fertile stamens 4. Ovules solitary in each cell, 



suspended. 



2. FOTIIERGILLA. Calyx 5-7-toothed. Petals none. Stamens numerous, all fertile. 



Ovules solitary, suspended. 



3. LIQUIDAMBAR. Calyx and corolla none. Flowers polygamous or monoecious, capitate. 



Stamens numerous. Ovules several. 



1. HAMAMELIS, L. WITCH-HAZEL. 



Calyx 2-3-bracted, 4-parted. Petals 4, long and linear. Stamens 8, the 

 alternate ones short and sterile. Styles 2. Capsule loculicidally 2-valved at 

 the apex, the outer coat separating from the inner one, which encloses the seed, 

 but soon splits elastically into 2 valves. Seeds large, bony. Shrubs. Leaves 

 short-petioled. Flowers yellow, clustered. 



