Ageratum 



Agrostis 



Sartori, 8', leaves 2', light grn., pale central 

 band. A free-blooming', valuable plant (sijns. 

 csespitosa, pendula, etc.). 



utahensis, 5', leaves 3'. The hardiest of the 

 genus yet discovered, and hdy. in mild districts 

 in Great Britain. 



vivipara, 20', leaves 3'. The flowers often produce 

 bulbils, which become young plants (si/ns. Cantula 

 Kumphii, and Fourcroya Cantula). 



yuccaefolia, 20', leaves 2^'. A very fine Agave 

 (syn. cohniana). 



Other Species : 



albicans, 5', leaves 1^'. micracantha, 7', leaves 1J'. 



atrovireus, 30', leaves 4' miradorensis,20',leaves2'. 



(//. salmiana ami polyacantha, 12', leaves 2'. 



tehuacanensis). pruinpsa, leaves 2' (syne. 

 attenuata, 12', leaves 2V Ghiesbreghtii and den- 



(si/ns. glauceseeus, spec- tata). 



tabilis) (see p. 23). rigida, 15', leaves 2'. 



Botteri, "', leaves 2'. schidigera, 8', leaves 9". 



eelsiana, o', leaves 2'. Scolymus, 14', leaves U'. 



densiflora, 7', leaves 2'. seemanniana,6', leaves!)", 



ferox, leaves 2'. Shawii, 12', leaves 1'. 



heteracaiitha,10',leavesl'. striata, 8', leaves2-V (vars. 

 Hookeri, 30', leaves 4'. recurva, stricta, etc.). 



horrida, 8', leaves 1' (vars. univittata, 12', leaves 2j'. 



Gilbeyi, lievior, etc.). variegata, ,'i', leaves 1J'. 



lophautha, 15', leaves 3'. Victoria Reginje, 10', 

 lurida, 16', leaves 3'. leaves 6". 



macracantha, 3', leaves 1'. virginica, 4^', leaves 1'. 



maximiliana, leaves 2' xylonacantha, 14', leaves 



(syn. gustaviaua). 1'. 



mexicana, 18', leaves 3'. There are many others. 



AGERATUM. 



Description. Hardy and half-hardy annuals (urd. 

 Compositaj), but may be kept perennials by not 

 allowing the plants to ripen seeds, and propa- 

 gating by cuttings. Mexicanum and the numerous 

 varieties obtained from it are very useful for 

 bedding purposes. 



Propagation. From cuttings inserted over a 

 slight hotbed in spring or autumn. Garden 

 varieties are readily raised from seeds sown in 

 heat in the spring. Plant out in May. 



Soil and Culture. Ageratums like a light, rich 

 soil. Tall sorts are useful for back lines in long 

 borders and for grouping, the dwarf varieties for 

 edgins' and mixing with other bedding plants. 

 They bloom freely from June till October. 



To keep plants and freshly rooted cuttings 

 through the winter, any light position will suit 

 where the temperature does not fall below 40. 



Principal Species: 



mexicanum. 2', Je., half-hdy., bl. 



Other Species : 

 angustifolium, 1', Jy., Lasseauxii, 1^', sum., ro. 



grh., wh. latifolium, 2', Jy., hdy., 



caernleum, 1', Jy., grh., wh. 



bl. Weudlandii, 1', bl. 



A Selection : 



There are several garden varieties of Ageratum, 

 and those who want plants for the summer border 

 may choose from : 



Blue Perfection. Swanley Blue. 



Imperial Dwarf Blue. The Zoo. 



AGLAIA. 



Warm greenhouse shrubs (ord. Meliacete), of no 

 great horticultural value. A light, rich compost 



Aycnora (sec Hypochceris). 



will suit them. Cuttings of half-ripe growth root 

 freely in sandy soil. 



Principal Species : 



odorata, 8', Feb., JIcli., yel., sweet, flowers 

 used by Chinese to scent tea. 



Other Species : 



aemninatissimit. 



oxyapetala. 



rufa. 



oblougifoliuin Curtisi, 1', 



Jy., grn., wh. 

 pictuin, U', Aug., wh. 



AGLAONEMA. 



A large genus of dwarf, perennial stove plants 

 (or/I. Aroidea;), needing a compost of loam, peat, 

 and sand, and a hot, moist atmosphere. Grown 

 chiefly for the sake of their prettily variegated 

 leafage. Propagation by seeds or division, in 

 bottom heat. 



Principal Species: 



angustifolium, 1^', Jy., 



greenish wh. 

 costatum, 6", Jy. , wh. 



Other Species : 



coinmutatum, 1', Jy., wh. pumilum, 6", Aug., gru., 

 Maimii. 1A', Jy., gru. wh. wh. (KI/II. rotundum). 



oblougifoliuin, 4', Jy., simplex, li', Jy., wh. 

 crim. (A//M. uitidum). 



AGONIS. 



A small group of Australian plants (ord. Myrt- 

 aceaj), that are best accommodated in a warm 

 greenhouse, and grown in any good, light compost. 

 Propagation by seeds or cuttings. 



Principal Species : 

 flexuosa, la', sum., wh. margiiiata, sum., wh. 



AGRIMONIA. 



Hard}- herbaceous perennials (ord. Rosace;e), 

 allied to Potent iilas. Increased by division, and 

 thriving in good garden soil. 



Principal Species : - - 



Eupatoria, 4', Je., yel. odorata, 4', Jy., yel. 



leucantha, 3', Jy., yel. suaveoleus, 3', Jy., yel. 



AGROSTEMMA. 



These plants (ord. Caryophyllaceoe) are known as 

 the Rose Campions. They bear abundance of 

 bright blossoms, and are readily grown in any 

 good garden soil. Propagated either by division 

 or from seed. The various species are now re- 

 ferred to Lychnis, which see. Reference may, 

 however, be made to what is known in gardens as 

 coronaria, a plant easily raised from seed, and 

 represented now by fine silvery leaved strains 

 bearing either crimson or white flowers. 



AGROSTIS. 



Particularly elegant Grasses (ord. Graminere). 

 The flower spikes, either fresh or dried, are charm- 

 ing for association with cut flowers. Though all 

 are hardy, it is best to treat them as half-hardy 

 annuals. Good garden soil. 



Principal Species: 



alba, 2'. Jy. pulchella, 1J', Jy. 



uebulosii (Cloud Grass), 



14', Je. to Aug. 



Atjlaomorpha (sec Poll/podium). 

 Agnostus (xre Stemoaarpvjf). 



Af/onioj>tcrls (.tec Acrnstichmn). 

 Ayrioti'x (nee \Virfirorm). 

 Ayrotis (see Turnip Moth). 



