HOR HOT 
# 
HOU HUD 
HdRD£UH, Linn. According to Bodaeus, the name is 
derived from hordua, heavy ; because bread made 
with barley is very heavy. Linn. ?, Or. 2, Nat. 
Or. Graminece. The species of this genus are 
among the most useful plants we possess ; corn, 
like barley, are among their products. The seeds 
of the various species have only to be sown in the 
open ground. 
coeleste .... Apefal . . 7i Grass. Levant . . 
complanatum . . Apetal . . 7, Grass. S. Eur. . .1819 
distichdn .... Apetal . . 7, Grass. Tartary . 
imberbe . . . Apetal . . 7, Grass. Tartary . . 
hex^tichdn . . . Apetal . . 7, Grass, 
hystrix .... Apetal . . 6, Grass. Spain . . 1821 
jubatum .... Apetal . . 7, Grass. N. Amer. . 1782 
nepalensS . . . Apetal . . 7, Grass. Nepal . .1817 
nigrum .... Apetal . . 7, Grass. S. Eur. . . 1818 
nudum .... Apetal . . 7, Grass. Tartary . . 
secalinum . . . Apetal . , 7, Grass. Europe . . 
vulgare .... Apetal . . 7, Grass. Sicily . . . 
giganteum . . Apetal . . 7» Grass. Levant . . 
Zeocritdn . . . Apetal . . 8, Grass. 
bulbOsftm, capSnsSy marifimtlm, murJnam, pratinai, 
atnctQm. 
Horbhound, see Marrabiilm. 
Horkeli A, Schlechtendahl. In honour of John Horkel , 
professer of botany at Berlin. Linn. 10, Or. J, 
Nat. Or. Rosaces. These are rather pretty her- 
baceous plants, growing freely in any common 
garden soil, and increased by seeds, or divisions, 
congests . . . White . . 8, H. Her. P. California . 1826 
fQscfi .... Wht. brn. 7, H. Her. P. N. Amer. . 
Horminum cr.ARy, see Salvia Horminfim. 
HOrmInCm, Linn. From hormao, to excite; medi- 
cinal qualities of the plant Linn. 14, Or. 1, Nat. 
Or. Labials. This is a very beautiful plant when 
in blossom ; it grows well in the open border in 
summer, but if allowed to remain in that situation 
during winter, it is apt to be killed by damp ; it is 
readily increased by divisions, or seeds. 
pyrenSIcum . . Blue . . 6, H. Her. P. Pyrenees . 1 820 
Horn; any stiff awl-shaped process is called a horn. 
Hornbeam, see CUrplntia. 
HornemXnnIa, Willdenon. In honour of Professor 
Hornemann, of Copenhagen. Linn. 14, Or. 2, Nat. 
Or. Scrophulariaces. A little inconspicuous spe- 
cies, of greater rarity than beauty, and of simple 
culture. Synontfme : \. Gratiola goodenisfolia. 
blcdlbr, 1 . . . Blue . . 8, S. A. E. Ind. . .1816 
Hornorass, see Cerntnchtod. 
Horn of plkntv, see Fedii cornucopia. 
Horn-poppy, see GlaOciOm. 
Hornwort, see Ceratophgllam. 
Horse-chestnut, see JEsciilus. 
Horse-poppy, see Sesllt Hippomdrdfhrnyn. 
Horse-radish, see Cochleilrld armordciil. 
Horse-radish tree, see Moringil. 
Horseshoe vetch, see HippOcripis. 
Horsetail, see EquisSlRm. 
Horsetail tree, see Casuarind. 
Horse-thistle, see Cirsiam. 
HosackTa. Named by Douglas in honour of David 
Hosack, M.D., F.R.S., professor of botany in the 
university of New York. Linn. 17, Or. 4, Nat. 
Or. Legutninoss. The plants of this genus are 
showy, and well adapted for borders and rock- 
work. They grow in common garden soil, and are 
increased by divisions, or seeds. Synonymes ; 1. 
Lotus pinnatus. 2. L. sericeus. 
bicftlor, 1 . . . Yel. wht. 8, H. Her. P. N. Amer. . 1826 
decumbens . . Yellow . 8, H. Her. P. N. Amer. . 1827 
parviflora . . . Yellow . 8, H. Her. P. N. Amer. . 1827 
Purshiaua, 2 . . Yellow . 7, H. Her. P. N. Amer. . 1824 
Hosta, Jacquin. In honour of N. T. Host, a German 
botanist. Linn. 2, Or. 1, Nat. Or. Verbenaces. 
Handsome shrubs, growing fi-eely in peat and loam, 
and increased by cuttings in sand, under a glass, 
in heat. Synonyme : 1. Cornutia punctata. 
ecertilSS, 1 . . . Blue . . 7> S- Ev. S. Mexico . . 1733 
latifftlia .... Blue . . 7, S. Ev. S. Mexico . . 1824 
longifdll^ . . . Blue . . 7, S. Bv. S. Mexico . . 1826 
Hottk-n'tot-bread, see DioscOria. 
Hottentot -CHERRY, see Cassini maurocenia. 
Hottfntot-fig, see Mesembryanthimum eduli. 
Hottonia, Linn. In honour of P. Hotton, a professor 
in the university of I^eyden ; he died in 1709. Linn. 
5, Or. 1, Nat. Or. Primulaces. This is a singular 
and pretty aquatic species, producing its flowers in 
large bundles ; it should be grown in a pond or 
ditch, and increased by divisions, 
palflstrls . . . Flesh . . 8, H. Aq. P. England . 
Hound’s-tongue, see CynoglOssum. 
Houseleek, see Sempervivum. 
Houstonia, Linn. In honour of William Houston, 
M.D., a famous British botanist ; he died in 1733. 
Linn. 4, Or. 1, Nat. Or. Gentianaces. The species 
of thk elegant genus are well adapted for orna- 
menting flower borders or rock-work; they grow 
best in a peaty soil, and increase freely by divisions, 
albiflora . . .White. . 6, H. Her. P. N. Amer. .1828 
coerCilea . . . Blue . . 6, H. Her. P. N. Amer. . 1785 
longifOUS . . . Scarlet . H. Her. P. N. Amer. . 
purpfir^a . . . Purple . 7, H. Her. P. N. Amer. . 1800 
serpyUifOlia . . White . . 7, H. Her. P. N. Amer. . 1826 
Hoiittuynia, Thunberg. After Houttuyn, the cele- 
brated virtuoso of Amsterdam. Linn. 3, Or. 3, 
Nat. Or. Saururaces. The species ^re worth cul- 
tivating. They thrive well in any light rich soil, 
in a very moist situation, and increase by divi- 
sions or seeds. 
cordatl .... Yel. grn. . 6, G. Her. P. Japan . . 1820 
fmtida .... YeL grn. . 7» G. Her. P. Japan . . 1800 
Hovea, R. Brown. In honour of Anthony Pantaleon 
Hove, a Polish botanist, and traveller in the 
Crimea and Persia. Linn. 14, Or. 6, Nat. Or. Legu- 
minoss. The plants of this genus are truly elegant 
when in flower, and particiuarly well adapted for 
ornamenting the conservatory and greenhouse. 
They delight in a mixture of sand, loam, and peat, 
and may be increased by young cuttings in sand, 
under a glass. Synonyme: \. Poiretia elliptica. 2. 
P. linearis. 3. H. lanigera. 
apiculaU . . . Purplish . 5, G. Ev. S. N. HolL . 1824 
aciitifOlia . . . Purple . 6, G. Ev. S. N. HolL . 1823 
CeUn .... Blue . . 6. G. Ev. S. N. HolL . 1818 
crIspS .... Purple . 2, G. Ev. S. Sw. River . 1837 
elliptic^, 1 . . . Purple . 4, G. Ev. S. N. HolL . 1817 
MangUsti . . . Purple . 1, G. Ev. S. Sw. River . 1837 
lanceolaU . . . Purple . 6, G. Ev. S. N. HolL . 1805 
latifolia . . . Purple . 6, G. Ev. S. N. Holl. . 1820 
linearis, 2 . . . Purple . 7, G. Ev. S. N. S. W. . 1796 
longifOira . . . Purple . 7. 0. Ev. S. N. S. W. . 1805 
mucronata . . . Purple . 6, G. Ev. S. N. HolL . 1824 
p.vDn6sa, 3 . . . Purple . 5, G. Ev. S. N. Holl. . 1824 
pungens . . . Blue . . O. Ev. S. Sw. River . 1837 
purpurea . . . Purple . 6, G. Ev. S. N. Holl. . 1820 
rosmarinifdlia . . Blue . . 6, G. Ev. S. N. Holl. . 1824 
villdsa .... Lilac . . 4, G. Ev. S. N. Holl. . 1829 
HovenIa, Thunberg. In honour of David Hoven, a 
senator of Amsterdam, who contributed to the 
success of the travels of Thunberg. Linn. 6, Or. 1, 
Nat. Or. Rhamnaces. These are small fruit-bearing 
trees, growing to the height of eight or ten feet, 
and producing a fruit which is said to taste like 
the Bergamot pear. They grow freely in a mix- 
ture of loam and peat ; and cuttings of the ripened 
wood root freely in sand, under a glass. Synonymes : 
-n 1. H. acerba, 2. H. dulcis. 
dulcis, 1 . . .White. . 7, G. Ev. T. Japan . .1812 
insqualls, 2 . .White. . G. Ev. T. Nepal . . 1820 
Hoya, R. Brown. In honour of Thomas Hoy, F.L.S. 
late gardener to the Duke of Northumberland, at 
Sion House; he died in 1821. Linn. 5, Or. 2, Nat. 
Or. Asclepiadaces. The plants of this genus bear 
very handsome waxy flowers, well known to all 
cultivators. They will grow in almost any soil, 
but loam, peat, and sand, suits them best; cuttings 
planted in a moist heat, will root freely ; even a 
leaf, taken off close to the plant, and planted in 
mould, in a little heat, will root and produce a 
plant. Synonymes : 1. H. lanceolata, H. pallida. 
australis . . .White. . S. Ev. Tw. N. Holl. .1820 
carnfisii . . . Pink . . 7, S. Ev. Tw. Asia . . 1802 
coriacea . . . Wht. yeL 8, S. Ev. Tw. Manilla . 1838 
crassifblia . . S. Ev. Tw. China . .1817 
fusca .... Brownish . S. Ev. Tw. Svlhet . . 1837 
parasIUca, 1 . . Yellow . S. Ev. Tw. E. Ind. . . 
Potsn . . . .Yellow . S. Ev. Tw. E. Ind. . .1824 
trinervis . . . Yellow . 7, S. F-v. Tw. China . . 1824 
Hudsonia, Linn. In honour of William Hudson, 
F.R.S., a London apothecary, and author of the 
Flora Anglica, 177R Linn. 11, Or. 1, Nat. Or. 
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