IANK2EA. A misprint for Jancaea. See Ramondia. 



IBRIS (from Iberia, the ancient name of Spain, 

 where the genus is abundant). Cruciferce. A genus of 

 about 30 species, native to southern Europe, western 

 Asia and northern Africa, all low-growing annuals, bi- 

 ennials and subshrubs. Comparatively few species are 

 cult. The annuals are the common Candytuft of gar- 

 dens. The biennials are not cultivated. The subshrubs 

 are flat, dwarf, compact, commonly evergreen plants, 

 with dark green Ivs., completely covered with broad, 

 flat or elongated clusters of irregular cruciferous fls. 

 in spring. 



The annuals are showy branching plants, 6-18 in. 

 high, much grown in masses in beds or for edging. 

 Florists grow them also, especially the white varieties, 

 for cut-flowers. They are of easy cultivation, and suc- 

 ceed in any rich garden soil, in a place exposed to light 

 and air. They are propagated by seeds, which may be 

 sown at any season, in the house or open ground, but 

 particularly in the fall when the climate permits, or as 

 early as possible in spring, in rows 6-8 in. apart where 

 the plants are to grow, the plants being thinned later to 

 4 in. apart in the row. The finest display is attained 

 from autumn-sown plants, which flower from May to 

 July. If seed is sown in autumn, the plants should be 

 slightly protected from the sun during winter. Seeds 

 sown early in the spring bloom from July to September. 

 Continuous bloom may be obtained by sowing every two 

 weeks. Good results are attained by sowing under 

 glass and transplanting into open ground when the soil 

 is warm. The name Candytuft was given because the 

 fls. appear in tufts and because the first introduced 

 species, /. umbellata, was brought from Candia. 



The subshrubby species are adapted to the front of 

 shrubberies, where they connect taller plants with the 

 surrounding lawn. They may -appear in separate clumps, 

 in broad masses, or may mingle with other genera in 

 the herbaceous border. They are suited to rockeries, 

 and hang well over walls and ledges. They are to be 

 treated much like herbaceous perennials. They are 

 plants of refinement, and are pleasing when close to the 

 observer. They are useful and popular for cut-flowers, 

 are easily forced into bloom in winter, and are adapted 

 to pot and pan culture. They are easily propagated. 

 The perennial Iberis succeed best when let alone. Once 

 planted and not disturbed, they soon form a dense foli- 

 age. They are the best spreading, dwarf plants with 

 white flowers. 



Iberis is a genus of glabrous or minutely downy 

 plants, with terete stems and pungent, watery juice: 

 Ivs. alternate, without stipules, linear or obovate, entire 

 or pinnatifid, often fleshy : fls. perfect, in terminal 

 corymbs or racemes ; sepals 4, inferior, deciduous ; 

 petals 4, hypogynous, white or purple, obovate, with 

 short claws, very unequal, opposite each other in pairs, 

 their spreading limbs forming an irregular cross, the 

 two outer petals much larger and about equal in size : 

 pods or silicles roundish or ovate at the base, flattened 

 at right angles to the narrow partition, notched at the 

 top, in which stands the permanent style, the 2 valves 

 boat-shaped, the keel or midrib expanding into a wing, 

 the cells 1-seeded. The characters of Iberis as dis- 

 tinguished from other Cruciferse are taken almost 

 wholly from the pods and seeds, the fls. being similar 

 to most cruciferse except that they are irregular. 



A. PHELPS WYMAN. 



The common white-fld. annual Candytuft is /. amara 

 The common annual kinds with colored fls. are /. um- 

 bellata. The common perennial kind is /. sempervirens. 

 The clusters of some kinds remain rather flat-topped 

 when they run to seed, while the clusters of other 

 kinds lengthen after flowering. This is expressed in 

 technical language under A and AA in the key which 

 follows : 



A.. Inflorescence racemose in 



fruit. 

 B. Annuals: stems not 



woody at the base. 

 C. Lobes of the pod erect. 



D. Lvs. toothed 



DD. Lvs. pectinate (i.e., 



divisions deeper, 



narrower, and 



farther apart) ... 2. 



cc. Lobes of the pod 



spreading. 



D. Lvs. merely toothed 3. 

 DD. Lvs. deeply cut 



(pinnatifid) 4. 



BB. Perennials: stems 



woody at the base. 

 c. While in flower race- 

 mose 5. 



cc. While in flower 



corymbose. 



D. Margin of Ivs. en- 

 tire. 



E. Form of Ivs. lin- 

 ear. 

 F. A p ex of Ivs. 



subacute. ... 6. 

 FF. Apex of Ivs. 



obtuse 6. 



EE. Form of Ivs. ob- 

 long, narrow at 



base 7. 



DD. Margin of Ivs. 

 toothed toward 



apex 8. 



.. Inflorescence corymbose in 



rruit. 

 B. Annuals: stems not 



woody at the base 9. 



BB. Perennials: stems 

 woody at the base. 



. c. Lvs. crenate 10. 



cc. Lvs. entire or sub- 

 dentate. 



D. Radicle descend- 

 ing : seed not 

 margined : sep- 

 tum simple 11. 



DD. Radicle horizontal: 

 seed somewhat 

 margined : sep- 

 tum nearly dou- 

 ble .... ..12. 



1. amara 



pectinata 



odorata 

 pinnata 



sempervirens 



of finis, 2. 

 amara, 1. 

 torifolia, 6. 

 coronaria, 1. 

 Dunnetti, 9. 

 Garrexiana, 7. 



INDEX. 



Gibraltarica, 8. 

 odorata, 3. 

 pec.tinata, 2. 

 pinnata, 4. 

 Pruiti, 11 



saxatilis 



saxatilis , var. corif olia 



Garrexiana 

 Gibraltarica 



umbellata 



Tenoreana 



Pruiti' 



seraperflorens 



saxatilis, 6. 

 semperflprens, 12. 

 sempervirens, 1, 5. 

 Tenoreana, 10. 

 umbellata, 9. 



1. amara, Linn. COMMON ANNUAL C. BITTER C. 

 CLOWN'S MUSTARD. Lvs. lanceolate, toothed toward 

 apex : fls. white. Common in Eu. S.B.F.G. II. 359. 

 The best form is var. coronaria, Voss (/. coronaria, 

 Hort., not D. Don). ROCKET C. This has larger and 

 fuller clusters and larger fls. The taller varieties, Em- 

 press, Spiral White and Giant Snowflake, grow 18 in. 

 high, with solid pyramidal trusses 5-8 in. long. Dwarf 

 forms are Tom Thumb and Little Prince. All are good 

 bedders, and Empress is fine for cutting. Seed may be 

 sown at any time, but the best results with Empress are 

 secured by sowing under glass and transplanting to the 

 open, where plants will bloom in May and June. 



2. pectinata, Boiss. (/. afflnis, Hort., not Jord.). 

 Fls. white. Spain. Advertised only as A. a f finis. 



(794) 



