THE NURSERY LIST. 203 



Hibiscus. Malvaceae. 



Seeds sometimes. Also by divisions and layers. Cuttings 

 of green wood are commonly used, made in summer for hardy 

 species or in early spring for tender ones. Cuttings of rip- 

 ened wood may be taken in fall, and stored until spring in a 

 rather dry place. The variegated sorts do better if grafted 

 upon strong stocks. 



Hicoria, Carya (Hickory, Pecan, etc.). Juglandece. 



Increased chiefly by seeds, which should be stratified ; also 

 by root-sprouts. Seeds are sometimes planted at intervals 

 in the field where the trees are to stand ; but this practice is 

 not to be recommended. The hickory can be grafted. Best 

 results are obtained by veneer or splice-grafting in winter, 

 on potted stocks. Cleft-grafting can be employed out-doors. 

 Saddle-grafting upon young twigs is sometimes used. See 

 also Pecan. 

 Hippeastrum (Equestrian Star). Amaryllidece. 



Seeds may be sown as soon as ripe in well-drained pots or 

 pans of sandy loam, slightly covered, and placed in a tem- 

 perature of about 65. For increasing by divisions which 

 is the usual way the old bulbs should be taken from the 

 pots and carefully separated, with the least possible injury 

 to the roots. This should be done when the plants are at 

 rest, and the offsets should be placed singly in pots. Keep 

 the bulb about two-thirds above the level of the soil, dispose 

 the roots evenly, and plunge in bottom heat, in a position 

 exposed to the light. 

 Hippomane, Mancinella. Euphorbiacecc , 



Propagated by cuttings, placed in sand under glass. 

 Hippophae (Sallow Thorn, Sea Buckthorn). Elaagnacece. 



May be increased by seeds, suckers, layers, and cuttings of 

 the roots. 

 Hoffmannia, Higginsia. Rubiacecc. 



Insert cuttings in sandy soil under cover, in bottom heat. 

 Hog Plum. See Spondias. 

 Holbcellia. Berberidece. 



In spring, cuttings may be made of half-ripened shoots. 

 Holly. See Ilex. 

 Hollyhock (Althasa). Malvaceae. 



Seeds should be sown as soon as ripe in summer in pots 

 or pans, and placed in a slight bottom heat or in the open 



