430 AKBANGEMENT OF THE GENERA 



capitate or in catkins, sometimes with a membranous perianth. 

 Stamens inserted on the scales, often monadelphous. Fertile 

 flowers clustered, solitary, or in catkins. Ovary generally sim- 

 ple ; stigmas one or more. Fruit as many as the ovaries, bony or 

 membranous. 



BETULINE^E. CUPTJLIFEIUE. 



1. Betula, 345, 364. 5. Fagus, 344, 363. 



2. Alnus, 344, 358. 6. Quercus, 345, 363. 



SALICINE.E. 7. Corylus, 345, 365. 



3. Salix, 366, 368. 8. Carpinus, 345, 364. 



4. Populus, 367, 380. 



Order LXXVII. MYRICE^E. 



Flowers monoecious, or dioecious, amentaceous. Perianth none.. 

 Barren flower, with six or eight stamens, and two- or four-celled 

 anthers, opening longitudinally. Female flowers with a one-celled 

 ovary, surrounded by hypogynous, persistent scales ; stigmas two,. 

 Fruit drupaceous. Seed solitary, erect. 



1. Myrica, 367, 379. 



Order LXXVIIL CONIFERS. 



Flowers monoecious or dioecious. Barren flowers with one or 

 several monadelphous stamens, collected in a deciduous catkin 

 about a common stalk ; anthers of two or more lobes opening out- 

 wards, often terminated by a scale-like crest. Fertile flowers 

 usually in cones, sometimes solitary. Ovary spread open, like a 

 flat scale, without style or stigma, and arising from the axil of a 

 membranous bractea. Ovules naked, in pairs on the face of the 

 ovary, and inverted. Fruit a cone, or a solitary naked seed. 

 Testa crustaceous, embryo in the axis of a fleshy albumen. 



ABIETINEJE. CUPRESSINE^E. 



1. Pinus, 345, 366. 2. Juniperus, 368, 382, 



TAXINE^E. 

 3. Taxus, 368, 383. 



CLASS II. MONOCOTYLEDONE^E. 



Stem with no distinction of bark, wood, and pith, destitute 

 of medullary rays, and consisting of cellular tissue, in the midst 

 of which the vascular tissue is disposed in bundles. It in- 

 creases by the addition of new matter in the centre, and hence 

 these plants are also called ENDOGENOUS. Cotyledon one ; or, 

 if more, they are alternate. 



Section I. FLORIDA. 

 Perianth petaloid, its pieces verticillate. 



I. Ovary free. 



Order LXXIX. ALISMACE^E. 

 Perianth free, six-parted, coloured. Stamens six, nine, or more. 



