Heath Family 335 
foliage and a profusion of broad (1} to 2-inch!) pink to white flowers 
sprinkled with yellowish and orange spots, the latest in blooming 
(June, July), but persistent. This being the largest, it makes a 
good background and winter effect for gardens. 
* R. Caiawbiense Pursh. (30), ALountain Rose Bay, from the southern 
mountains, a smaller shrub, three to six feet high (although sometimes 
reaching a height of twenty feet), with small, oblong leaves, rounded at 
both ends, and clustered at the tips of the branches; and bright, lilac- 
purple flowers (June), as large as those of the preceding; is equally 
hardy, and adapts itself to adverse situations. It is the one chiefly used 
in hybridizing for American use. 
R. punctatum Andr. (31), so called from the dots on the underside 
of the foliage, is also a small shrub, from alpine ranges. It is the earli- 
est and most persistent bloomer, bearing dense clusters of funnel- 
shaped, greenish-spotted flowers (May to August). 
The species used in Europe, but to be avoided as not hardy with us, 
are: — 
R. ponticum Linn. (32), from Asia Minor, recognized by the ellip- 
tical leaves, pointed at both ends, and pale underneath; and 
R. arboreum Smith (33), the largest, twenty to thirty feet, from the 
Himalayas, recognized by lanceolate leaves, cordate at base and acute 
at tip. 
A very large number of hybrids, with flowers of all shades, are in 
the market, just as in the case of the related Azaleas; in selecting which 
the question as to the mother stock used should be carefully looked 
into. 
Xolisma. X. ligustrina Britt (25), Privet Andromeda, also native 
from Canada to Florida, and west, growing in swamps; is larger, a 
bushy, compact, deciduous shrub (five to ten feet) and a still earlier 
bloomer, with a profusion of flower bunches, and with oblong leaves in 
panicles, assuming a brilliant fall coloring. 
Zenobia. Z. speciosa Don. (34), from the South Atlantic shores, a 
small (two to four feet) shrub, with upright, arching branches; is one 
of the latest blooming heathers (July), with a profusion of dainty, waxy, 
white bells, resembling the lily of the valley, blossoming for a long time 
on the previous year’s branches; its pale green, oval foliage adding to 
its attractiveness. Its light foliage gives it value as an accent shrub, 
and it is fine for border work. It thrives well in sandy and peaty soil. 
