CHAP, LXIX. ERICA‘CEA. RRODO‘REA. 1129 
f .. &c. Leaves broad, cuneate-obovate, acute, scabrous on both surfaces, coarsely serrated ; 
pea ated mated Racemes spicate, sub-panicled, bracteated, finely tomentose. (Don’s Mill., iii 
. 842.) A native of the western parts of Georgia, where it was collected by Mr. Lyon, and by 
im introduced into Britain in 1806. It isa shrub, growing to the height of 3 ft. or 4ft., and 
flowering from July to October. 
App. i. Half-hardy Species of Clethra. 
C. arborea Ait. (Bot. Mag., t. 1057. ; and our fig. 931.) is a well- ey 
known green-house tree-like shrub, and is by far the handsomest > Ae 
FS aN Ty 
species of the genus. It is a native of Madeira, with oblong, 
attenuated, lanceolate, serrated leaves, glabrous on both surfaces ; 
and spike-formed racemes of white fowers, resembling those of the 
lily of the valley. It was introduced in 1784; grows from 8 ft. 
to 10ft. high, in pots, and still higher when planted in the bed of 
a conservatory ; and flowers from August to October. It thrives 
best in a sandy peat; and, if planted against a conservative wall, 
and sufficiently protected during winter, it would thrive in favour- 
able situations ; although plants flowering so late in the season are 
not the most desirable for such a purpose, for obvious reasons. 
A plant in the Kilkenny Nursery has stood against a south wall 
for several years, and Mr. Robertson is of opinion, that, in that 
part of Ireland, it will ultimately prove as hardy as the O'lea ex- 
célsa, which lives through the winter there as astandard. There 
is avariety of this with the leaves variegated, which is found in 
some collections. 
C. ferruginea Ruiz et Pav. FI. Per., 4. t.380. fig. b, is a native 
of Peru, on mountains, where it grows to the height of 15ft. It 
was introduced in 1800, and is probably as hardy as Cléthra ar- 
bdrea, 
C. tinifolia Swartz ; Tinus occidentalis L., Browne’s Jam., 214. 
t 21. fig. 1. ; is anative of the south of Jamaica, and also of Mexico, 
where it grows to the height of 14 ft. It was introduced in 1825. 
C. mexicana Lodd. Cat., ed. 1836, appears to be this species. 
Other species of Cléthra, requiring a green-house, are described 
in Don’s Miller ; but they have not yet been introduced. 


4) 
G il 
+ 
App. I. Half-hardy Genera belonging to the Section Ericee and 
§ Andromedese of the Order Ericacee. 
Agarista (a mythological name, in commemoration of the beautiful daughter of Clisthenes ; in re- 
ference to the beauty of the flowers) D. Don. (G. Don’s Miil., 3. p. 837.) ‘This genus is composed of 
evergreen shrubs, natives of the Mauritius and South America, which were formerly included under 
Andrémeda. Only one species is introduced, and that is an inhabitant of the green-house. 
A,.buxifolia G. Don; Andrémeda buxifdlia Lam., Bot. Mag., t.2660., Bot. Cab., t. 1494.5 is a 
native of the Island of Bourbon, introduced in 1822, and producing its pink flowers in June and July. 
It forms a fine evergreen shrub for a conservatory, where it grows to the height of 6 ft. or 7ft., and 
would, probably, live against a conservative wall, with sufficient protection. 
amen 
930 
Sect. I]. RuoporeEx. 
The Rhodorez include genera of some of the most singularly ornamental 
evergreen and deciduous peat-earth shrubs that adorn our gardens ; for what 
would our American ground be without the genera Rhododéndron and 
Azalea? Our conservatories would suffer equally without the Indian and 
Chinese species of these families. ‘“ Of all the genera in existence,” G. Don 
observes, “ Rhododéndron” (under which he includes the Azalea) ‘ comprises 
the most handsome, elegant, and showy shrubs for adorning shrubberies or 
planting singly on lawns.” Though, in Britain, these plants are solely culti- 
vated as ornamental, yet, in their native countries, they are not without their 
other uses. “ The Rhodorez,” Mr. Royle observes, “ abound in stimulant, 
and even deleterious, properties. Thus Rhododéndron pénticum, 2. maxi- 
mum, R. ferrugineum, and &. chrysanthum are poisonous to cattle which feed 
on them; and yet, in moderate doses, are used in medicine, for the cure of rheu- 
matism, &c. Azalea procimbens Z. and Lédum palistre are accounted 
diuretic; and ZL. latifolium, being more stimulant, is used as a tea, under the 
name of Labrador tea, but determines to the head. Kalmia latifolia is ac- 
counted poisonous, and honey collected by bees from its flowers is of a dele- 
terious nature; as is that of A. pontica, which was so injurious to the soldiers 
in the Retreat of the Ten Thousand. In the Himalayan species, Rhododéndron 
arboreum is more remarkable for its uses as a timber tree than the other species. 
