430 ARRANGEMENT OF THE GENERA 



capitate or in catkins, sometimes with a membranous perianth. Sta- 

 mens inserted on the scales, often monadelphous. Fertile flowers clus- 

 tered, solitary, or in catkins. Ovary generally simple; stigmas one or 

 more. Fruit as many as the ovaries, bony or membranous. 



BETULINE*. CCPULIFERJE. 



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



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



SALICINE*. 7. Corylus, 345, 365. 



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



4. Populus, 367, 380. 



Order LXXV1I. MYRICE^. 



Flowers monoscious, or dio3cious, amentaceous. Perianth none. 

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

 thers, 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 LXXVIII. 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 outwards, often terminated 

 by a scale-like crest. Fertile flowers usually in cones, sometimes soli- 

 tary. 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. 



ABIETINE.*. CUPRESSINEVE. 



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



TAXIXE.S. 

 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 ENDOGEJSOUS. Cotyledon one ; or, 

 if more, they are alternate. 



Section I. FLORID JE. 



Perianth petaloid, its pieces verticillate. 



I. Ovary free. 

 Order LXXIX. ALISMACE^E. 



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



