IPS 



304 



IRI 



sandy, and in equal parts, and placed in a cold 

 frame, where the seed will soon vegetate, 

 during which time the least possible water is 

 given. When the plants begin to show signs 

 4 of leaves, they are thinned out to three or four 

 in each pot ; in about a week after this, they 

 should be removed into a rather light and airy 

 part of the greenhouse, where they remain all 

 winter. DuriDg winter, over-watering, and 

 drips from the roof of the house, must be 

 carefully avoided. In spring, they are shifted 

 into forty-eight-sized pots, well drained, and 

 the same kind of soil as before ; in doing this, 

 great care must be taken not to injure the 

 roots. In this sized pot they will generally 

 be found to flower. Out of the four plants 

 left after thinning, it is rare that more than 

 two remain in each pot, one of which may be 

 destroyed if the other appears healthy and 

 well established ; if not, let both remain. In 

 the course of their growth, water cannot be 

 too cautiously given, especially just before the 

 plants break into flower. Thus nourished, in 

 an airy situation near the glass, they flower 

 splendidly in July and August, and continue 

 beautiful for a long time. Synonymes : 1, 

 Gilia pulchdla ; 2, G. coronopifilia. See 

 Gilia. 



elegansl . .Scarlet 7, G. B. 8 N. Amer. v 1820 

 piota2 . . . Carmine 7, G. B. 2 Carolina . 1726 



Ipsea, Lindley. Linn. 20, Or. 1, Nat. Or. 

 Orchidaceoz. 

 specidsa . . Yellow . 9, S. Epi. | Ceylon . . 1840 



iREsiNB, Wildenow. From eiros, wool ; refer- 

 ring to the woolly appearance of the branches. 

 Linn. 22, Or. 5, Nat. Or. Amarantacece. The 

 plants of this genus are very pretty, and may 

 be cultivated in sandy loam and peat, mixed 

 with a little decayed dung. They increase 

 from seeds by merely sowing them on a gentle 

 hotbed. 



celosioldes . White 7, F. Her. P. H S. Amer. . 1733 

 diffusa . . . White 7, F. Her. P. 1| 8. Amer. . 1818 

 elatior . . . White 7, G. A. 2 Antilles . 1820 



elongata . . White 7, F. Her. P. 1J S. Amer. . 1822 

 flavescens . . White 7, F. Her. P. 1 S. Amer. . 1824 



IriArtea, Ruiz and Pav. Named after Juan 

 Iriarte, a Spanish amateur botanist. Linn. 

 21, Or. 7, Nat. Or. Palmaceoz. A fine tall 

 growing palm tree requiring the same treat- 

 ment as other stove palms. Synonyme: 1, Ce- 

 r6xylon andicola. 

 andioola . . Cream 5, S. Palm 60 Quindin . . 1840 



IridAcEjE or Irids. An order of herbaceous 

 plants of which the well-known Iris is the 

 type. Many have very showy flowers, and the 

 violet scented orris root is the produce of Iris 

 florentlna. 



Irio. See Sisymbrium trio. 



Iris, Linn. From iris, the eye ; alluding to 

 the variety and beauty of the colours of the 

 flower. Linn. 3, Or. 1, Nat. Or. Iridaceai. 

 The genus Iris has long been, as it still con- 

 tinues to be, a great favourite in the flower- 

 garden. The sword-leaved sorts, as 1. ger- 

 ■m&nica, &c, do best in a light loam, and 



increase freely by suckers from the roots, or 

 by seeds. The tuberous-rooted ones are more 

 difficult to cultivate, and thrive best in a 

 mixture of loam, peat, and sand, as does also 

 the tribe to which I. persica belongs, as I. 

 aluta, caucdsica, reticulata, &c. The common 

 bulbous species do well in common garden 

 soil, the more sandy the better. 1 I. tuberdsa 

 is purgative, and I. versicolor and virna are 

 used in the United States as cathartics. Sy- 

 nonymes : 1, /. gracilis ; 2, Vieusseuxia iridi- 

 aides; 3, 1. spatulaia ; 4, I. tripelala ; 5, J. 

 nepaUnsis ; 6, I. paraddxa ; 7, I. sten6gyna ; 

 8, /. aphtflla; 9, I. tripitala ; 10, I. pumila, 

 I. violacea; 11, 1, missouriinsis flbre-pleno ; 12, 

 I. hcematophfilla, sibirica sanguinea. See JM&- 

 tes, Vieusseuxia, Trimizia. 



acuta 

 alata 



arenaria . , 



aurea . . , 



bleolor 1 . , 



bifldra . . , 



biglumis . . 

 Blonddvii . 

 bohemica . 

 Boltoniana 1 

 brachycuspis 

 caucasica . 



chingnsis . . 



clandestlna . 



ecelestlna . . 

 crassif51ia 



cristata . . 



cixprea . . , 

 eurtopetala 2 



deflexa . . 



desert&rum 3 

 dich6toma 

 elegans 



ensata . . . 



fragrans . . 

 flavescens 

 flavlssima 

 flexudsa . 



florentlna . . 



minor - . . 



fcetidfesima . 



variegata . 



furcata . . 

 germanica 



fldre-albo . 

 Goldenstadtii 



graminca . . 



halophila . . 



Hookeri 4 . . 



Humei 5 . . 



hurnihs. . . 

 hungarica 



iberica 6 . . 



imbricata . . 



laevigata . . 



livida . . . 



longifl&ra . . 



longifblia . . 



longipetala . 



longispatha . 

 lurida . 



lusitaiiica . . 



lutescens . . 



Monnieri . . 



nepalensis 

 nertcMnskia . 

 notha . . . 

 nudicaulis 

 ocbroleuca7 . 

 odorata . . 

 orientalis 12 . 



Blue . 5 



Blue 



Blue . 5. 



YeL 



Yel. 



Yl.pur. 5 



Purp. 



Blue 



Blue 



Blue 



Blue 



Purp. 



Yel. 



Pa. bl. 6, 



Purp. 



Blue . 6. 



Pa. bl. 6. 



Pa. bl. 6, 



Orange 6. 



Yel. bl. 5' : 



Lilac 



Blue . 7, 



Lgt. bl. 8, 



Yel. . 7. 



Bl.pur. 6i 



Bl.pur. 6, 



Yel. . 5, 



Yel. . 5. 



White . 5, 



White . 5. 



Grey 



Livid . 6, 



Livid . 6, 



Blue . 3 



Blue 



White . 5. 



Yel. 



Striped 6. 



Blue 



Purp. 



Blue 



Blue 



Violet . 5; 



Bed 



Yel. 



Blue 



Livid 



Grnsh. 4, 

 Pur. w. 6. 

 Purp. . 7 

 Brown 4 

 Blue . 4: 

 Yel. . 4. 

 Yel. 



Pa. bl. 5; 

 Blue . 4, 

 Blue . 5, 

 Blue 

 Blue 

 Lgt.yel.7^ 

 Blue . 6 

 Lgt.bl. 5, 



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2 S. Eur. . 

 } Algiers . 1801 



1 . 1821 

 i Hungary 1802 



2 Germany 1826 

 1 

 1J S. Eur. . 1596 



i Siberia . 1811 

 1 Altai . . 1832 

 1 Bohemia 1825 

 li M". Amer. 1825 

 if Siberia . 1819 



\ Caucasus 1821 

 1 China . 1792 



1 Brazil . 1829 

 1J N. Amer. 1824 



} C. G. H. . 1830 

 I N. Amer. 1756 



2 N. Amer. 1812 

 li . 1823 

 1J Nepal 

 1 \ Russia 

 1 Dauria 



. 1833 

 .1811 



1784 

 1823 

 1786 

 1835 

 1818 

 1814 



1£ Austria ' 

 l£ India . 

 2 



£ Siberia 

 2 Germany 1810 



2 S. Bur. , 1596 

 \\ Gardens. 



1 Brit., sha. pi.* 



1 Brit^gards. 



i Tauria . 1822 

 2| Germany 1573 



3 Gardens. 



2 Siberia . 1757 

 5 Austria . 1597 



3 Siberia . 1780 

 14 N. Amer. 1826 

 2 Nepal . 1822 

 1 Caucasus 1812 

 1 Hungary 1815 

 H Iberia . 1820 



