AGLAIA 



AIR 



used for bedding. Imperial Dwarf Blue and Imperial 

 Dwarf White were among the first we had, but there are 

 now numerous names from different raisers. They all 

 come fairly true from seed, but it is desirable to propa- 

 gate from cuttings, as there is little trouble in keeping 

 plants through the winter, and cuttings root freely 

 early in the spring. 



A. angustifo'lium (narrow-leaved), i. White. July. 

 Monte Video. 1827. 



., caru'lfum (sky-blue). See A. CONYZOIDES. 



., ceclesti'num (B. M., t. 1730). See A. CORYMBOSUM. 



,. conyzoi'dfs (conyza-like). I. Light blue. July. 

 America. 1714. 



corymbo'sum. i. Blue. July. Mexico. 1732. 



Lasseau'xii (Rev. Hort., 1870, p. 90). See CONO- 



CLINIUM. 



,, latifo'lium (broad-leaved). See A. CONYZOIDES. 



mexica'num (Mexican). 2. Blue. June. Mexico. 



1822. Greenhouse. 



puncta'tum (Jacq. H. Schcenb., t. 300). 

 .. stn'ctvm (upright). See ADENOSTEMMA VISCOSUM. 

 suffrutico' sum (Gfl., t. 108). 

 ., Wendla'ndi (R. H., 1885, 9). Mexico. 



AGLA'IA. (The name of one of the three Graces. Nat. 

 ord. Meliads [Meliacea?]. Linn. $-Penlandria, \-Mono- 

 gynia.) 



Until very recently this interesting Chinese plant was 

 referred to the Citronworts. Stove evergreen shrub. 

 Light loam, decayed dung, and peat ; half-ripe cuttings 

 in sand ; in stove-propagating frame with bottom-heat. 



A. odora' ta (sweet-scented). Striped. February. China. 

 1810. 



AGLAOMO'RPHA. (From aglaos, beautiful, and 

 morphe, a form. Nat. ord. Ferns [Filices]. Linn. 

 24-Cryptogamia, i-Filices.) 



Stove herbaceous Fern. Root division and seed ; light, 

 rich loam and peat. 



A. meyenia'na (Meyenian). Yellow. May. Island of 

 Luzon. See POLYPODIUM MEYENIANUM. 



AGLAONFMA. (From aglaos, bright, and nema, a 

 thread, alluding to the shining stamens. Nat. ord. 

 Araceae.) 



Stove evergreen perennials, some of which are remark- 

 able for their beautiful variegated foliage. They require 

 a warm, moist atmosphere, and may be propagated 

 from cuttings in sand and peat ; some may be propagated 

 from divisions, and others from seeds ; pot in fibrous 

 loam, peat, and leaf-mould, with sand added. 



A. acutispa'thum. Light green ; leaves dark green, 



paler beneath. Canton. 

 commuta'tum (B. M., t. 5500). 

 ,, commute' turn pi'ctum. 

 hookeria' num. Spathe green, paler inside. India. 



1874. 



., Lava'lleei. Syn. Schismatoglottis Lavalleei. 

 Ma'nnii. (B. If., t. 5760). Whitish. W. Africa. 1868. 

 ,, marantifo' Hum. Malaya. 

 nebulo'sum. Leaves dark green, blotched with whitish 



green. Java. 1887. 

 ,, ni'tidum. See A. OBLONGIFOLIUM. 

 oblongifo'lium. Malaya. 

 pfctwn. i to 2. White ; leaves blotched. August. 



Borneo. 1880. 



compa'ctum. Shining green. Java. 1888. 

 si'mplex. 2 to 3. White. July. Java. 

 versi 'color (Bull. Cat.). E. Ind. 



AGNO'STUS. See STENOCA'RPUS. 

 AGONIO'PTERIS. See ACRO'STICHUM. 



AGO'NIS. (From agonos, without children, or a, 

 privative, and gonu, a joint. Nat. ord. Myrtaceae.) 



Evergreen greenhouse shrubs. Cuttings in sand, under 

 a bell-glass. Loam, peat, and sand. 



A. fUxuo'sa (flexuous). 2. June. Australia. 1823. 

 margina'ta (margined). 2103. White. June. Aus- 

 tralia. 1827. 



AGRLMO'NIA. Agrimony. (From agremone, a plant 

 by the Greeks in cataract of the eye. Nat. ord. 

 Roseworts [Rosaceae]. Allied to Potentilla. Linn, n- 

 Dodecandria, 2-Digynia.) 



Hardy herbaceous plants. Root division ; common 

 garden soil. 



A. Eupato'ria (Eupatoria). 3. Yellow. June. Britain. 

 ,, nepalc'nsis (Nepuul). Set- A. EUPATORIA. 

 odora' ta (scented). 4. Yellow. July. England and 



Ireland. 



,, parviflo'ra. 3. Yellow. July. Virginia. 1810. 

 suave'olens (sweet-smelling). See A. PARVIFLORA. 



AGROMTZA VIOUE. Pansy Fly. Attacks the 

 flower by puncturing the petal, and extracting the juice ; 

 the puncture causes the colouring matter to fade. Very 

 minute ; shining black ; bristly ; eyes green ; head 

 orange. Appears in May. See IRIS FLY, also INSECT 

 PESTS. 



AGROSTEMMA. Rose Campion. (From agros, afield, 

 and stemma, a crown ; referring to the beauty of the 

 flowers. Nat. ord. Cloveworts [Caryophyllaceae]. Linn. 

 lo-Decandria, 4-Tetragynia.) 



Hardy herbaceous perennials. Common soil ; division 

 or seed. All are now referred to Lychnis, which se. 



A. bungea'na (Don Bunge's). i. Scarlet. July. Russia. 



1834. 



decu'mbens (hanging-down), i. Crimson. July. 

 pyrena'ica (Pyrenean). i. Pale rose. June. Pyre- 

 nees. 1819. 

 ,, sue'cica (Swedish). See LYCHNIS ALPINA. 



AGRO'STIS. Bent grass. (From agros, a field. The 

 Greek name for a kind of grass. Nat. ord. Gramineae.) 



A. e'lfgans. i. Russia. 1834, 



nebulo'sa. i\. Spain. 



pulchSlla. i to i. Sicily. 



,, Spica-ve'nti. England. See APERA SPICA-VENTI. 



AGRO'TB. The Turnip Moth. See TURNIP. 



AGYNEIA. (From a, without, and gune, female. The 

 male and female are in different flowers. Nat. ord. 

 Euphorbiaceae.) 



Stove annual. Seeds. Loam, leaf-mould, and sand. 



A. baccifo'rmis (berry-formed). 2. Green, yellow. July. 

 India ; Malaya. 1793. 



AILA'NTHUS. (From ailanto, tree of heaven ; re- 

 ferring to its lofty growth. Nat. ord. [Simarubaceae]. 

 i Linn. 2^-Polygamia, n-Dicecia.) 



Deciduous trees. Cuttings of the roots ; sandy loam 

 and peat. Glandulosa makes a very handsome tree. 



A. exctflsa (lofty). 50. Green. E. Ind. 1800. Stove. 

 Gira'ldii (Girald's). Leaves long. China. 1907. 

 ,, glandulo'sa (glandulous). 20. Green. China. 1751. 



Hardy. 



,. pendulifo'lia. (R. H., 1906, 545, f. 205). 

 tricolor (three-coloured). Leaves with rose 



blotches becoming white. 1907. 

 sutchuend 'nsis (Sutchuen). Fruits flat, 2j in. long. 



Central China. 1907. 

 ,, vHmorinia'na (R. H., 1904, 444, f. 184). W. China. 



Syn. A. glandulosa spinosa. 



AINSL^A. (Named after Dr. Whitelaw Ainstie, an 

 authority on Indian drugs. Nat. ord. Composite.) 



A. a'tera( Bull. Cat, 1882, 13). Purple. Sikkim. Hima- 

 laya. 1882. 

 . WalkSri (B. M.. t. 6225). i. White. Hong-Kong. 



1875- 



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 in every 1000 parts 

 having admixed about one part of Carbonic Acid. The 

 average proportions are 



Air 98.9 



Watery vapour 1.0 



Carbonic Acid Gas . . . . o.i 

 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 requiring the protection of glass. 

 See LEAVES ROOTS, VENTILATION. 



