52 Crucifere—Lberts. 
the commonly cultivated annual species, with white, lilac, 
purple, or crimson flowers. 
3. I. odorata.—A pretty odoriferous annual species, a foot 
or more high, with large corymbs of pretty white flowers 
towards the end of Spring. A native of Crete. 
4. TI. sempervirens (fig. 39)—A shrubby branching ever- 
green species, about 9 inches or a foot high, with pure white 
flowers. This is the ordinary perennial species in cultivation, 
flowering in May. A native of Candia (hence the trivial name 
Candytuft), and other parts of Southern Europe. 
5. I. Garrexiana.—A common plant in cultivation, very near 
No. 4, and by some considered a variety of it. The flowers, 
however, are smaller, and the racemes elongate very much in 
the course of flowering. It is a very hardy kind, a native of 
the South of Europe, flowering in Spring. 
6. I. semperflorens.—Shrubby, and similar to the last, but 
double its size, and flowering in Autumn and Winter. From 
the Levant. 
7. I. Gibraltarica.—This is a magnificent species, bearing the 
largest flowers in the genus. It grows about a foot or more 
high, with oblong-spathulate lvaves and pinkish-lilac or nearly 
white flowers. Native of the South of Spain, and still scarce in 
this country. 
8. I. Priitt.—The flowers of this nearly equal those of the 
last-named species, but here they are pure white. A somewhat 
shrubby plant, rarely exceeding a foot in height, producing an 
abundance of dark green foliage and compact heads of flowers, 
which appear in May or June. It is from the South of 
Europe. 
9. I. Tenoreana.—Near Nos. 6 and 7, but hairy all over, 
and the flowers, white at first, change to a purplish red. South 
of Eurepe. 
15. ATHIONEMA. 
A small genus of herbaceous or shrubby perennials, distin- 
guished by the filaments ofits four longer stamens being winged 
and furnished with a tooth, equal petals, and boat-shaped or 
spoon-like pods with usually numerous seeds. From the 
borders of the Mediterranean and Persia. Name from al@wv, 
bright or flaming, and vywa, a thread, in allusion to the fila- 
ments of some species. 
