AGE 



[22] 



ALA 



Very minute ; shining black ; bristly ; 

 eyes green ; head orange. Appears in 

 May. 



AGROSTE'MMA. Eose Campion. (From 

 agros, field stemma, a crown, referring to 

 the beauty of the flowers. Nat. ord., 

 Cloveworts [Caryophyllaceae]. Linn., 10- 

 Decandria, ^-tetragynia]. Hardy herba- 

 ceous perennials. Common soil ; division 

 or seed. 



A. Bungea'na (Don Bunge's). 1. Scarlet. 

 July. Russia. 1834. 



dccu'mbensl Decumbent). 1. Crimson. July. 



pyrena' lea (Pyrenean) . 1. Pale rose. June. 



Pyrenees. 1819. 



sueci'ca (Swedish). Pink. August. Swe- 



den. 1824. 



AILA'NTHTJS. (From ailanto, tree of 

 heaven, referring to its lofty growth. 

 Nat. ord., Xanthoxyls [Xanthoxylacese]. 

 Linn., 1^-Polygamia,\\-di(ecia}. Decidu- 

 ous trees. Cuttings of tbe roots ; landy 

 loam and peat. 



A. exce!lsa (lofty). 50. Green. East Indies. 

 1800. Stove. 



glandultfsa (glandulous). 20. Green. 



China. 1751. Hardy. 



AIR. Atmospheric air is uniformly 

 and universally composed of ' 



Oxygen, 21 



Nitrogen, 79 



Every 100 parts, even in the driest 

 weather, containing, in solution, one 

 part of water ; and every 1000 parts 

 having admixed about one part of Car- 

 bonic Acid. The average proportions are 



Air, 98.9 



Watery Vapour, . . . 1.0 

 Carbonic Acid Gas, . . 0.1 



All these are absolutely necessary to 

 every plant to enable it to vegetate with 

 all the vigour of which it is capable ; 

 and on its due state depends; in a great 

 measure, the health of any plant requir- 

 ing the protection of glass. See Leaves, 

 Roots, Ventilation. 



AIR (GIVING) is a term commonly used 

 by gardeners, who mean by the term 

 lowering the upper sashes of the house, 

 pit, or frame, to allow the escape of ex- 

 cessive heat, bad air, and vapour, and 

 opening at the same time the front sashes 

 to admit fresh air. The openings should 

 be so regulated as to equalize the escape 

 and supply, and according to the liveli- 

 ness of the current of air desired to be. 

 maintained. 



AIR-PLANT, Aerides. 



AITO'NIA. (In honour of Mr. W. 

 Alton, once head gardener at Kew. Nat. 

 ord., Meliads [Meliaceae]. Linn., 16- 

 Monadelphia, 5-pentandria) . Greenhouse 

 evergreen shrub. Loam and peat ; cut- 

 tings of young wood, in sandy loam, 

 under a glass, with bottom heat. 



A. cape'nsis (Cape). 2. Pink. July. Cape 

 of Good Hope. 1777. 



AJAR. Used to denote the smallest 

 amount of opening to allow the entrance 

 of air, and usually applied to the front 

 sashes or lights. 



A'JUGA. Bugle. (From , not, and 

 zugon, a yoke, in reference to the calyx 

 being one leaved. Nat. ord., Labiates, or 

 Lipworts [Lamiaceae]. Linn., \-Didy- 

 namia, \-gymnospermia). Hardy plants. 

 Common garden soil ; division, or seeds. 



ANNUALS. 



A. Chamafpitys (ground-pine). 1. Yellow. 

 July. England. 



I'va (iva). 1. Yellow. May. South of 



Europe. 1759. 



PERENNIALS. 



A. amtra' lis (southern). 1. Blue. July. New 

 Holland. 1822. 



folio' sa (leafy). 1. Blue. August. Swit- 



zerland. 1826. 



genevffnsis (Geneva). 1. Flesh. July. 



Switzerland. 1656. 



integrifo' lia (entire-leaved). 1. Blue. June. 



Nepaul. 1821. 



orienta'lis (oriental). 2. Blue. June. Le- 



vant. 1752. 



pyramida'lis (pyramidal). \. Blue. May. 



Britain. A beautiful plant. 



rutbra (red-flowered). 1. Red. May. Bri- 



tain. 



variega'ta (variegated-leaved). 1. Blue. 



April. Britain. 



rupe'stris (rock). 1. Blue. May. Swit- 



zerland. 1826. 



AKE'BIA. (The name it bears in Japan. 

 Nat. ord., Lardizabalads [Lardizaba- 

 lacere]. Linn. 21-Monwcia -hexandria}. 

 The fruit of Akcbm quinata, is used in 

 Japan as an emollient medicine. Green- 

 house evergreen twiner. Root division 

 and cuttings ; sandy loam and peat. 



A. quina'ta (five-leafleted) . Lilac pink. March. 

 Chusan. 1845. 



AKEE-TREE, Blighia sapida. 



ALA'NGIUM. (The Malayan name for 

 two trees, bearing fruit not palatable to 

 Europeans. T$&t.ardi.,Alangiads [Alangia- 

 ceaej. Linn. 12-Icosandria \-inonog i ynid). 

 Stove evergreen trees. Loam mixed with 



