440 



THE HABIT OF PLANTS. 



but in Alnus they bear leaves only;. ..in Populus, Fraxinus, 

 and some species of Salix, they bear leaves and flowers distinct- 

 ly;. ..in Corylus and Carpinus, leaves and female flowers ;... in 

 Pinus and Abies, leaves and male flowers ;... and in Daphne, Ul- 

 mus, Cornus, and Amygdalus, leaves and bisexual flowers: ...in 

 Dentaria, Ornithogalum, Lilium, and Saxifraga, the buds 

 are deciduous. 



In several plants there are no buds, as in Phi ladelphus,... Fran - 

 gula,...Alaternus,...Paliurus,...Jatropha,...Hibiscus,...Baho- 

 bab, . . . Justici a,...Cassi a, . . .Mimosa,...Gleditsia,...Erythrina,... 

 Anagyris,. . .Medicago, . . .Nerium, . . .Viburnum, ...Rhus,... Tama- 

 iux, . . .Hedera, . . .Erica, . . .Malpighi a, . . . Lavatera, . . . Solanum, 

 ... Asclepias, ...Ruta, . . .Geranium, . . .Petiveri a, ...Pereskia,. 

 Cupressus,... Thuya,... and Sarin a. 



In cold countries there are but few plants without buds, and m 

 hot countries but few that have any. 



CHAP. X. 



OF THE HABIT OF PLANTS. 



BY the Habit, or external face of plants, is to be understood 

 a certain conformity between vegetables that belong to the same 

 genus, or are near of kin to each other*. This conformity may 



* This definition of the habit of plants, which we have taken from the Phi losophia 

 Botanica. seems to agree better with the old state of botany, when plants were ac- 

 tually ranged according to their external face, than with the modern system that 

 ranges them by the fructification : for plants that, by the system, are neither of the 



