AL Y 



28 



AM B 



3,300, and on tlie northern, scarcely at 

 1,800 feet. The fir grows on Siilitel- 

 ina, in Lapland (68 degrees north lati- 

 tude), scarcely at the height of 1,200 

 feet. On the other hand, upon the Alps 

 ■which divide Italy from France and 



mental plunged at the side of a warm 

 sandy pond, forming a good contrast 

 with Crinum, capenae, Nymphcea alba, 

 &c. About October they are removed 

 into winter quarters, increase pretty 

 fast by offsets, taken off and fresh potted 



Switzerland, oaks and birches grow at , in April, and treated as the parent bulbs, 

 3,600; firs at 4,800; and the same i which should at that time have their 

 plants grow on the Pyrenees above the , decayed outer skin removed." — Gard. 



height of 600 feet. In Mexico, the 

 mountain chains, and in particular the 

 Nevado of Toluca, are covered, above 

 12,000 feet high, with the occidental 

 pine (Pinus occidentalis), and above 

 9,000 feet, with the Mexican oak (Quer- 



Chron. 



AMBURY is a disease peculiar to the 

 Brassica tribe, and is known by the 

 various names of H anbury. Anbury, and 

 Club Root. Fingers arid Toes, a name 

 applied to it in some parts, alludes to 



cus Mexicana spicata), as also with the the swollen state of the small roots of 

 alder, of Joruilo (Alnus Jorullensis). I the affected plants. 



On the Andes, palms grow at the height ! Cabbage plants are frequently in- 

 of 3,000 feet. The woody ferns (Cya- j fected with ambury in the seed-bed, 

 thea speciosa, Meniscium arborescens, j and this incipient infection appears in 

 Aspidium rostratuml are found as high the form of a gall or wart upon the 

 as 6,600 feet; as are also the pepper j stem immediately in the vicinity of the 

 species, MelastomesB, Cinchona;, Dor- 1 roots. If this wart is opened, it will 

 steniae ; and some Scitaminese rise to i be found to contain a small white mag- 

 the same elevation. At the height of|got, the larva of a little insect called 

 14,760 feet, we still find the wax palms, \ the weevil. If, the gall and its tenant 

 some CinchoncB, Winterae, Escalloma?, ; being removed, the plant is placed 

 Espelettii, Culcitia, Joannea;, Vallea j again in the earth, where it is to re- 

 stipularis, Bolax aretioides, and some ] main, unless it is again attacked, the 

 others." — De Candolle's Philos. o/i vvound usually heals, and the growth is 

 Plants. ; little retarded. On the other hand, if 



ALYSICARPUS. Two species. Stove j the gall is left undisturbed, the maggot 



herbaceous perennials. Seeds, and root 

 division. Rich light soil. 



ALYSSUM. Twenty-one species. 

 All hardy plants. Seeds, cuttings, and 

 division. Common soil. 



ALYXIA. Five species. Green- 

 house evergreen shrubs. Cuttings. 

 Sandy loam. 



A L Z A T E A verticillata. Green- 

 house evergreen tree. Root cuttings. 

 Sandy loam and peat. 



AMARANTHUS. Eighteen species. 

 Hardy annuals. Seed. Rich garden 

 soil. 



AMARYLLIS. Seventy-six species, 

 and many varieties. A. aulica and bel- 

 ladonna are hardy ; the others, a few 

 green-house, but mostly hot-house bulbs. 



A (Vallota) purpurea. " Pot in good- 

 sized pots, in a mixture of loam, sandy 

 peat, and leafmould, being merely 

 kept in a green-house, with but little 

 water through the winter, and about 

 May set in the open air in pans of water, 

 under a south wall, where about June 

 or July they throw up their splendid 

 scarlet flowers, which last fully a week 

 or more. They would be very orna- 



continues to feed upon the alburnum, 

 or young woody part of the stem, until 

 the period arrives for its passing into the 

 other insect form, previously to which it 

 gnaws its way out through the exterior 

 bark. The disease is now almost be- 

 yond the power of remedies. The gall, 

 increased in size, encircles the whole 

 stem; the alburnum being so exten- 

 sively destroyed, prevents the sap as- 

 cending, consequently, in dry weather, 

 sufficient moisture is not supplied from 

 the roots to counterbalance the transpi- 

 ration of the leaves, and the diseased 

 plant is very discernible among its 

 healthy companions by its pallid hue 

 and flagging foliage. The disease now 

 makes rapid progress, the swelling con- 

 tinues to increase, for the vessels of 

 the alburnum and the bark continue to 

 afford their juices faster than they can 

 be conveyed away ; moisture and air 

 are admitted to the interior of the ex- 

 crescence, through the perforation made 

 by the maggot ; the wounded vessels 

 ulcerate, putrefaction supervenes, and 

 death concludes the stinted existence 

 of the miserable plant. The tumour 



