CHAP, LXIX. ERICA‘CER. RHODODE/NDRON. 1139 
Variety. 
# R. d. 2 atrovirens Ker, Bot. Reg., t.194., Bot. Mag., t. 1888., Lodd. 
Cat., ed. 1836, is subevergreen. Leaves deep green, and shining 
above. It is a native of Siberia. 
R. lepiditum Wall. (Royle Illust., p. 260. t. 64. f.1.; Don’s Mill., 5. p. 845.) is a native of Nepal, 
with the habit of #. dauricum, but with leaves of a thinner texture; and with every part of the 
plant beset with ferruginous scale-like dots. It grows to the height of 2 ft. or 3 ft., but has not yet 
been introduced. ig 
§ iii. Chamecistus D. Don. 
Derivation. From chamai, on the ground, and cistus, the rock rose ; 
= plants with the habit of species of Helianthemum. Limb of calyx fo- 
liaceous, 5-cleft. Corolla rotate. Stamens 10. Ovarium 5-celled. Di- 
minutive, prostrate, evergreen shrubs, with small membranous leaves. 
2 14. R. camrscua’ticum Pall, The Kamtschatka 
Rhododendron. 
Identification. Pall. F1. Ross., 1. p. 48. t. 33.; Don’sMill., 3. p. 845. 
Engravings. Gmel. Sib., 4. p. 126. No. 13.; and our jig. 940, 
Spec. Char., §c. Leaves obovate, acutish, 5-nerved, 
naked, ciliated, peduncles hairy, usually twin. Caly- 
cine segments ciliated, foliaceous. Corollas purple, 
rotate. (Don’s Mill.,iii. p. 845.) A prostrate shrub, 
flowering in July; a native of Kamtschatka and the 
Aleutian Islands, in muddy places on the mountains. 
Introduced in 1802, but rare in British gardens. There 
are plants at Messrs. Loddiges’s. 
2. 15. R. Cuamaci’stus L. The Ground-Cistus Rhododendron. 
Identification. Lin. Sp., 562. ; Don’s Mill., 3. p. 854. ; Lodd. Cat., ed. 1836. , 
Engravings. Jacq. Fl. Austr., 3. t. 217.; Bot. Mag., t. 488.; Bot. Cab., t. 
1491.; Michel. Gen., 225.t. 106.; Pluk. Phyt., t. 23, f.4.; and our fig. 941, 
Spec. Char., §c. Leaves oblong-lanceolate, attenuated at 
both ends, stiffish, glandularly ciliated. Peduncles 
usually twin, and, as well as the calyxes, beset with glan- 
dular hairs. Corollas rotate, pale purple. A dwarf 
tufted shrub, with small leaves, about the size of those 
of a species of Helianthemum. (Don's Mill., iii. p. 845.) 
A native of the Alps of Europe, as of Austria, Carniola, 
Mount Baldo, and near Salzburg; and in Eastern Siberia. 
It grows about half a foot high, and flowers in May and 
June. Introduced in 1786; but seldom to be met with 
in British gardens. Having very small leaves, it may 
without impropriety be introduced in such ericetums as 
admit Daboe‘cia, and other genera resembling the hardy 
heaths in general appearance. 
§ iv. Pentanthéra D. Don. 
Derivation. From pente, five, and anthéra, an anther; flowers pentandrous. 
Sect. Char. Limb of calyx short, 5-lobed. Corolla funnel-shaped. Stamens 5. 
Ovarium 5-celled. Leaves deciduous. This group includes the hardy 
azaleas of the gardens, which have mostly deciduous leaves, and are quite 
distinct in their appearance from the plants of the preceding groups of this 
genus, which are all evergreen and subevergreen. We, therefore, think that 
it would be much better to constitute this section the genus Azalea, and 
retain as names for the species those in common use. The convenience of 
such an arrangement, in gardens where there are so many hundred varieties 
of Azalea, where so many are being annually produced, and where these 
varieties are so much in demand, will be felt by every gardener. It may be 
perfectly true, according to the usual principles of forming genera, that 
Azalea and Rhododéndron are not generically distinct ; but, when the ad- 
herence to this rule of science, as it may be called, leads to so much con- 
fusion and inconvenience as in the present case, in practice, we certainly 
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