LlLlACEAE. 55 



the world, indispensable for the maintenance of lawns, etc. 

 Several large .species are frequently used in massed planting and 

 some few of these, not easily denned, with woody switch-like 

 stems, constitute the bamboos of temperate borders. 



Family LILIACEAE. Lily Family. 



A large family, chiefly of herbs, comprising many of the 

 "Dutch bulbs," "smilax," "asparagus fern" and other green- 

 house and bedding plants, onions, asparagus, of the vegetable 

 garden, and the dracaenas, yuccas, etc., of warm regions. 



SMILAX. Greenbrier. 



Mostly deciduous woody plants climbing by stipular tendrils, 

 with " endogenous" wood lacking pith and medullary rays; 

 moderately slender green often striate or angled mostly prickly 

 stems ; alternate raised ragged petiole-bases rather than leaf- 

 scars ; conical buds with a single exposed scale ; ovate to 

 oblong entire or somewhat prickly-toothed or lobed leaves with 

 tendrils on their petioles ; small dioecious greenish polypetalous 

 flowers in stalked axillary clusters ; and small few-seeded dark 

 berries. 



1. Leaves whitened beneath. 2. 

 Leaves not whitened beneath. 3. 



2. Leaves ovate. S. glauca. 

 Leaves oblong. S. laurifolia. 



.3. Leaves not lobed. 4. 



Leaves often halberd-shaped or 3-lobed. S. Bona-nox. 



4. Fruit black. S. -rotundifolia. 



Fruit red. S. Walteri. 



Class DICOTYLEDONEAE. "Exogens." 



Family SALICACEAE. Willow Family. 



A small family of deciduous trees and shrubs, chiefly of 

 temperate or cold regions, yielding the "osiers" used in basketry 

 and some lumber of inferior quality. Some of the poplars greatly 

 .abused in street planting. 



