HOL 



C J 



HOR 



shoots. See Aphis. Slugs will also 

 attack the young shoots. They must 

 be diligently sought for and destroyed, 

 or, if very numerous, give the ground a 

 watering with clear lime water occa- 

 sionally. In new ground, a brown grub 

 is sometimes very destructive hy eating 

 off the young shoots just level with the 

 ground. Nothing will kill these except 

 hand-picking, the soil must be stirred 

 with the hand, and the insects found 

 and destroyed, 



Diseases. Sometimes they die off 

 suddenly, the consequence of a too 

 rich or too damp soil. Whenever a 

 plant is struck with this disease it 

 should he instantly removed. If it has 

 any young healthy shoots they may be 

 taken off and put in as cuttings. The 

 place must have the soil removed for a 

 foot square, fresh soil put in, and anew 

 healthy plant inserted. 



HOLMSKIO'LDIA. (Named after T. 

 Holmskiold, a Danish botanist. Nat. 

 ord., Labiates or Lipwarts [Labiacea^]. 

 Linn., 14:-Didynamia 2-Angiospermia.} 



Stove evergreens, with scarlet flowers, from 

 the East Indies. Cuttings of young shoots just 

 getting firm at the base, in sandy soil, under 

 glass, and in heat ; sandy peat, and light fibry 

 loam. Summer temp., 60 to 90; winter, 50 

 to 60. 



H. Sangui'nea (bloody). 4. 17Q6. Shrub. 

 sca'ndens (climbing). May. 1824. Climber. 



HOMALONE 'JIA. (From homalos, re- 

 gular, and nemo,, a filament ; in refer- 

 ence to the regularity of the numerous 

 stamens. Nat. ord., Arads [Araceee], 

 Linn., 21-Moncecia 7-Heptandria. Al- 

 lied to Eichardia.) 



Greenhouse herbaceous perennial. Offsets 

 from the roots, and dividing the plant ; rich 

 open loam. Winter temp., 40 to 45. 

 H, corda'ta (heart- leaved). White. June. 

 China. 1820. 



HONESTY. Luna'ria. 



HONEY-BERRY. Melico'cca. 



HONEY-DEW. See Extravasated Sap. 



HONEY-FLOWER. Mella'nth us. 



HONEY- GARLIC . Nectarosco'rditm. 



HONEY-LOCUST. Gledi'tschia trica'n- 

 thos. 



HONEYSUCKLE. Caprifo'lium. 



HONEYWORT. Ceri'nthe. 



HOOP-PETTICOAT. Narci'ssus bulboco'- 

 dium. 



HOOP-ASH. Ce'ltis crassifo'lia. 



HOP. Hu'mulus. 

 HOP-HORNBEAM. Phologo'phora. 

 HOREHOUND. Marru'bium. 

 HORKE'LIA. (Named after J. Horkel, 

 a German botanist. Nat. ord., Hose- 

 ', worts [Eosacese]. Linn., 10-Decandria 

 \-Monoyynia, Allied to Potentilla.) 



Hardy herbaceous perennial- Seeds and di-< 

 viding the plant in spring ; common garden 

 soil. 



H. conge'sta (croviAed.flowered). 2. White. 

 August. California. 1826. 



HORMI'NUH. (From Iwrmao, to ex- 

 cite ; its medicinal qualities. Nat. ord., 

 Lip worts [Lamiaceee]. Linn., I-Didy- 

 namia l-Gymnospermia. Allied to Mo- 

 narda.) 



Hardy herbaceous perennial. Division of the 

 plant, and seeds in spring; requires a dry 

 situation, or a damp winter will injure it. 



H. Pyrena'icum (Pyrenean). 1. Blue. June. 



Pyrenees. 1820. 



HORN. See Animal Matters. 

 HORNBEAM. Carpi'nm. 

 HORN-OF-PLENTY. Fe'dia. 

 HORN-POPPY. Gla'-ucium. 



HORSE-CHESNUT. JE'sCUlvS. 



HORSE-RADISH. Cochlea' riu Armo- 

 ra'cia. Delights in a deep, rich soil, 

 banks of a ditch, &c. Should the ground 

 require manure, it should be dug in at 

 the depth at which the sets are intended 

 to be planted. It is propagated by 

 sets, provided by cutting the main root 

 and offsets into lengths of two inches. 

 The tops, or crowns of the roots, form 

 the best ; those taken from the centre 

 never becoming so soon lit for use, or 

 of so fine a growth. Each set should 

 have at least two eyes ; for without one 

 they refuse to vegetate at all For a 

 supply of the crowns, any inferior piece 

 of ground, planted with sets six inches 

 apart and six deep, will furnish from 

 one to five tops each, and may be col- 

 lected for several successive years with 

 little more trouble than keeping them 

 clear of weeds ; but the times for plant- 

 ing are in October and February. 



Insert the sets in rows eighteen 

 inches apart each way. The ground 

 trenched between two and three feet 

 deep, the cuttings being placed along the 

 bottom of the trench, and the soil turned 

 i'rom the next one over them. The 

 earth ought to lie lightly over the sets ; 



