224 THE NURSERY-MANUAL 



^schynanthus : Trichosporum. 



j*Esculus (Horse-Chestnut. Buckeye). Plippocastanacece. 



Propagated readily by stratified seeds in spring, and by layers 

 in spring or autumn ; and by grafting or budding on the 

 common horse-chestnut or native buckeye, usually under glass. 



Aganisia. Orchidacece. 



Propagated by dividing the pseudobulbs just before growth 

 starts. See Orchids, page 372. 



Agapanthus (African Lily). Liliaceos. 



Propagated by offsets, and more commonly by dividing the old 

 plants in early spring ; also sometimes by seeds, if procurable. 



Agave. AmaryllidacccB. 



Increased by seeds, to secure the production of which the flowers 

 usually need to be pollinated. Propagated more commonly by suck- 

 ers, which spring naturally from the old plant, or by underground 

 shoots. Some kinds produce buds from the stem which may be 

 detached and planted; a few species bear bulbels in the flower- 

 clusters. The century-plant belongs here. 



Ageratum. Composite. 



Easily grown from seeds in the open or started in the greenhouse, 

 growing in any garden soil. 



Aglaonema. Araceoe. 



Propagated by division and cuttings. Put the parts into sand bed 

 previous to potting, to develop new roots. See Aracece, page 239. 



Agrostis (Bent-Grass). Graminece. 



Increased easily by seeds, sown in spring in the open ; sometimes 

 kept in pots for ornament. Some kinds are agricultural field grasses, 

 sown broadcast or by a drill. 



Ailanthus (Tree of Heaven). Simarubacece. 



Propagated by suckers, and by root-cuttings. Seeds are used 

 when large quantities are desired ; they grow readily if sown soon 

 after maturing. 



Ajuga (Bugle). Labiates. 



Perennials are propagated by seeds sown in the open in spring 

 or autumn, and by division ; annuals, by seeds sown where 

 plants are to stand, The plants are readily divided. 



