HjEMATO'XYLON. 



135 



HAMAME^LIS. 



H. 



Habena'ria. — Orchidacece. — 

 Hardy North American perennials, 

 with tuberous roots, and very curi- 

 ously shaped flowers, which are gene- 

 Tally yellow, but sometimes purple, 

 and ■sometimes white. They grow 

 best in a shady situation, and in a peat 

 soil, kept rather moist than dry. 



Habra'nthus — A maryllidacecB. — 

 Bulbous-rooted plants, (some of which 

 will thrive in the open ground, though 

 others require a greenhouse, and 

 others a stove,) the culture of which 

 exactly resembles that of the Amaryl- 

 lis. The flowers are also similar, 

 though very much smaller ; and, as 

 in the Amaryllis, they are produced 

 before the leaves. The Habranthus 

 appears to exemplify the doctrine of 

 bulbs being under-ground stems; for 

 We are told by the Hon. and Rev. W. 

 Herbert, ( Bot. Mag. t. 2597,) that 

 the bulbs of this species, though round 

 when imported, after having been 

 potted a year become gradually elon- 

 gated. Plants of this genus are gene- 

 rally grown in a mixture of sandy 

 loam and peat ; and for the details of 

 their culture, see Amaryllis. 



Hema'nthus. — Amaryllidacew . 

 — Bulbous plants, with large red 

 flowers of very singular appearance 

 and no particular beauty. They are 

 very coarse-growing, and. take up a 

 great deal of room. H. multifibrus 

 is, however, an exception, as it is 

 rather pretty. All the speeies require 

 the heat of a greenhouse, and to be 

 grown in sandy loam and peat ; they 

 should also have a season of complete 

 rest. For the rest of their culture, 

 see Amaryllis. 



H^mato'xylon. — LeguminoscB. 

 —The logwood. This tree, which 

 grows about twenty feet high in its 

 native country, is a stove-shrub in 

 Britain. It has yellow flowers, and 



should be grown in a mixture of peat 

 and loam. 



Ha v kea. — Proteacecs. — Australian 

 shrubs, with flowers somewhat resem- 

 bling those of the Grevillea, which are 

 generally sweet-scented. The plants 

 are generally kept in the greenhouse, 

 should be grown in peat and sands, 

 mixed with a little loam, and the pots 

 should be well drained, and never suf- 

 fered to become either too wet or too 

 dry. See Australian Shrubs. 



Hal^esia.— Halesiacece.-- The Snow- 

 drop-tree. American low trees, which 

 generally form very handsome hardy 

 shrubs in British pleasure-grounds. 

 The reason of this is, that in North 

 America the species all grow on the 

 banks of rivers, in very poor rocky 

 soil, whereas in England they are 

 grown in dry places in rich soil; and 

 too much nourishment to a tree which 

 does not require it, has the same effect 

 as too much animal food to a child — 

 it makes it increase in width instead 

 of height. The Snowdrop- tree flowers 

 freely, and its stem droops gracefully 

 over water. The flowers are white, 

 and resemble those of the snowdrop ; 

 and the seed is curiously winged. The 

 species will grow in any soil or situa- 

 tion, but they all prefer a poor soil 

 near water, and a sandy situation. 

 They are generally propagated by 

 layers, though they all ripen seed 

 abundantly in England. 



Halimode'nuron. — LeguminoscB. 

 — The Salt-tree. H. argenteum, Dec. 

 (Mobmia Halimodendron, Lin.) is 

 a Siberian hardy shrub, which will 

 grow in any soil or situation. When 

 grafted standard high on a laburnum, 

 it forms a very handsome drooping 

 tree, with silvery leaves and purple 

 flowers. 



Hamame^lts. — HamamelacecB. — 

 The Witch Hazel. A hardy shrub, 



