196 DICOTYLEDONS.- SALICIN^E. 



l.Q.#o>w,leavesdeciduous dilated towards the extremity obovato- 

 oblong sinuated and lobed, their sinuses rather acute, their lobes 



' obtuse, fruitstalks elongated, p. 273. Woods. 



2. Q. sessiliflora, leaves deciduous petiolate oblong sinuated and 

 lobed, the sinuses rather acute, the lobes obtuse, fruit sessile, 

 p. 273. Woods. 



3. CASTANEA. 



Hfoncecious. 'Barren fl. in a very long cylindrical catkin. Perianth 

 single, of 1 leaf, 6-cleft. Stam. 520. Fertile fl. 3, within a 

 5-lobed thickly muricated involucre or cupule. Perianth 5 6- 

 lobed, having the rudiments of 12 slam. Ovaries 6-celled, with 

 the cells 2-seeded, 5 of them mostly abortive. Styles 6. Nut 

 1 2-seeded, invested with the enlarged involucre. 



1. C. vulgaris, leaves oblongo- lanceolate acuminate mucronato- 

 serrate glabrous on each side. p. 273. Plantations. 

 4. FAGUS. 



Monoecious. Barren fl. in a globose catkin. Perianth campanu- 

 late, 6-cleft. Slam. 5 12. Fertile fl. within a four-lobed 

 prickly involucre or cupule. Perianth with 4 5 minute lobes. 

 Ovaries 3-celled, 2 of the cells becoming abortive. Styles 3. 

 Nuts 1 -seeded, invested with the enlarged involucre. 



1. F. sylvatica, leaves ovate glabrous obsoletely dentate their mar- 

 gins ciliated, p. 274. Woods. 



5. CARPINUS. 



Monoecious. Barren fl.'in a cylindrical catkin ; its scales roundish, 

 ciliated at the base. Stam. 8 20. Fertile fl. in a lax catkin ; 

 its scales large, foliaceous, 3-lobed, 1 -flowered. Perianth urceo- 

 late, adherent with the 2- celled ovary, of which 1 cell is abor- 

 tive. Styles 2. Nut ovate, striated, 1 -seeded. 



l.C. Betulus, scales or bracteas of the fruit oblong serrated with 

 2 smaller lateral lobes, p. 274. IVbods. 



ORDER III. SALICIN^E. Mirb. 



Flowers amentaceous, with the anthers and pistils in distinct 

 flowers. Barren fl. Perianth either none, or bearing the starti. 

 Stam. 1 3. Fertile fl. Perianlh simple, free and persistent, 

 or none. Ovary 1. Style simple. Stigmas 2 4. Ovules pen- 

 dulous. Fruit a capsule or achenium, 1 2-celled, 1 many- 

 seeded. Seeds pendulous. Albumen .none. Radicle superior". 



Shrills or trees with alternate simple leaves and stipules. Mirl. 



1. SALIX. 



Dioecious. Barren fl. Scales of the catkin single-flowered, im- 



: bricated, with a nectariferous gland at their base. Perianth 0. 



