SELECT LISTS OF PL4.NTS. 379 



evergreen trees and low shrulbs, native of the Northern Hemisphere. 

 Wood fine grained, not resinous. The heart wood usually of a reddish 

 color, and fragrant, and exceedingly durable. Propagated by seeds and 

 cuttings. The seeds are very hard and bony, and unless the shell ia 

 softened by some chemical application they seldom germinate until 

 the second season, even when exposed to frost and kept constantly 

 moist. The usual method of treating the seeds is to gather them in 

 the fall when fnUy ripe, and either mix with strong, moist wood ashes, 

 or pour some strong potash water over them, leaving them to soak and 

 soften for two or three days ; then rub the berries until the outer coat 

 is removed. A little sharp sand added wiU assist greatly in cleaning 

 the seed. Wash out the sand and other foreign matter by placing the 

 seed in a sieve and pouring the water over them. Sow immediately in 

 a bed in the open air, and cover the seed about one-half inch deep. 

 Over the surface scatter leaves, chaff, or some similar light material. In 

 spring remove the mulch, and if the plants appear, protect them from 

 the direct rays of the sun, but if they fail to come up, cover the bed 

 again with mulch, and leave it undisturbed until the following spring. 

 Most of the Junipers may be propagated by cuttings of the young 

 shoots planted in sand under glass, or of the mature wood taken off 

 in the fall and set in cold frames, where they wUl receive only slight pro- 

 tection during the winter. 



Kalmia (Laurel, Calico Bush, Spoonwood). — A genus of North 

 American evergreen shrubs ; only one species, the K. latifolia, growingto 

 the height of twenty feet and over. All very ornamental, and highly prized 

 in Europe, but only sparingly cultivated in this country. Propagated 

 by seed and by layers abroad ; but wild plants from the woods and 

 fields can be obtained to supply the demand in tliis country. 



Kerria (Golden Corchorus).— One species in cultivation {K. Jo- 

 ponied), but of this there are several vai-ieties ; one with double yellow 

 flowers is very common in gardens ; the single flowered is more 

 rare, but really the most desirable of the two. There is also a varie- 

 gated-leaved variety. Easily propagated by suckers or cuttings of the 

 matm-e shoots, planted in the open ground in fall or spring. 



Kolreuteria (Bladder-pod).— A genus of one species, viz., K. pani- 

 culata ; a small tree somewhat resembling the common Sumac, having 

 pinnate leaves of numerous leaflets. Flowers small, yellow, in large 

 terminal panicles, succeeded by large bladdery pods, containing large, 

 shot-like, black seed. Propagated by seeds, layers and cuttings of the 

 roots. 



XAibumum (Golden Chain). — The common Laburnum (L. inilgare), 

 at Europe, is placed in the genus Cytisus by some botanists, while 

 others have separated it because of the difference in the general appear- 

 ance of the plants, and the absence of the Carunde, which is present 



