120 ORDER 48. IIOLORAGEvE. 



ORDER XL VII, HAMAMELACE^E. WITCH HAZELWORTS. 



Shrubs or trees with alternate simple leaves and deciduous stipules. 

 Flowers in heads or spikes, often 6 $ $ or 8 . Calyx adherent. P&tah 

 linear, or 0. Stamens twice as many as the petals, the opposite sterile and 

 scale-like, or oo. Ovaries of 2 carpels, 2-celled, 2-styled, ovules 2 or oo. 

 Fruit a woody capsule, 2-beaked, 2-celled, 1-2-seecled. 



Petals4. Calyx 4-lobed. Stamens 4. Flowers mostly g HAMAMKI.I&. 1 



Petals 0. Calyx truncate. Stamens 20 28. Flowers g FOTHKKGIU.A. 2 



SPetalsO. CalyxO. Stamens OO. Flowers $, in globular heads LIQUIDAMBAR. 3 



1. HAMAMELIS, L. WITCH HAZEL. Calyx with an involucel of 

 2 3 bracts at base. Pet. very long, linear. Sterile stamens scale-like, 

 opposite the petals, alternating with the 4 fertile ones. Caps, nut-like, 

 2-celled, 2-beaked. ^> ^ Flowers yellow. 



H. Virginia na L. Lvs. oval or obovate, acuminate, crenate-dentate, obliquely cm- 

 date ; fls. sessile, 3 4 together, blooming in late autumn and winter. Woods. Sterna 

 crooked, 10 15f. Pet. twisted, 9" long. 



2. FOTHERGILLA, L. filius. Calyx campanulate, truncate and ob 

 scurely 5-7- toothed, bearing the stamens in one marginal row. Styles 

 distinct. Caps. 2-lobed. > Lvs. oval or obovate, expanding after the 

 dense spikes of flowers. 



F. alnifolia L./. Swamps, Va. to Fla. 2 4f. Calyx white, fringed with the long 

 white or pink filaments. Styles long, recurved. March, April. 



3. LIQUIDAMBAR, L. SWEET GUM TREE. Involucre 4-parted, 

 deciduous. $ Ament conical. $ Ament globular. Calyx a scale, if any. 

 Fruit a globular sorosis ($ 171), woody, consisting of the scales, and 

 capsules which open between their beaks. Ovules oo, 1 or 2 maturing. 

 5 Leaves and gum fragrant. Twigs winged with corky bark. 



L. styraciflua L. Lvs. palmate, with 5 acuminate, serrate lobes; veins villous at 

 their bases. A large and handsome tree, Conn, to 111. and S. 60f. May. 



ORDER XLVIIL HALORAGE^E. THE HIPPURIDS. 



Herbs mostly aquatic, with incomplete or minute </ y flowers. Calyx 

 tube adherent. Petals 4. Stamens 1 8. Pollen 4-grained. Ovary 1-4- 

 celled. Styles 1 4, distinct, one pendulous ovule in each cell. Fruit in- 

 dehiscent, 1-4-cellcd, 1-4-seeded. Seed pendulous, anatropous, albuminous. 

 (Formerly joined to Onagraceas.) 



* Flowers 3-partcd, apetalons, perfect PROSKRPIKACA. 1 



* Flowers 4-parted, monoecious ; petals 4 or MYRIOPHTLLUM. 2 



Flowers 1 -parted, apetalous, perfect HIPPURIS. 3 



1. PROSERPINAOA, L. MERMAID WEED. Calyx tube adherent to 

 the ovary, 3-sided, limb 3-parted. Pet. none. Sta. 3. Stig. 3. Fruit 3- 

 ungled, 3-celled, bony, crowned with the calyx. ? Roots creeping. Lvs. 

 alternate. Fls. greenish. 



