196 DICOTYLEDONS. SALlCIN.t:. ScillX. 



1. Q.7?o^z/r,leavesdeciduous dilated towards the extremity obovato- 

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

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



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

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

 p. 273.--mods. 



3. CASTANEA. 



Monoecious. Barren Jl. in a very long cylindrical catkin. Perianth 

 single, of 1 leaf, 6-cleft. Statn. 5 — 20. Fertile Ji. 3, within a 

 5-lobed thickly muricated involucre or ciipule. Perimilli 5 — 6- 

 lobed, having the rudiments of 12 stam. Ovaries G-ceiled, with 

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

 \ — 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 Ji. 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 l)ccoming 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.'m a cylindrical catkin ; its scales roundish, 

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

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

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

 tive. Styles 2. M/^ ovate, striated, 1 -seeded. 



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

 2 smaller lateral lobes, p. 274. — Woods. 



Order III. SALICIN^. Mirl^. 



Flowers amentaceous, with the anthers and pistils in distinct 

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

 Stam. 1 — 3. Fertile fl. Perianth H\mp\e, free and persistent, 

 or none. Ovary \. Style s\mp\e. Stigmas '2 — 4. Ovules pen- 

 dulous. Fruit a capsule or achenium, I — 2-celled, 1 — manv- 

 seeded. Seeds pendulous. Albumen none. Radicle superior. 



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



• 1. SALIX. 



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

 bricatcdj with a nectariferous gland at their ba^c. Perianth 0. 



