848 
not clammy, naked; tube of corolla hardly longer than the seg- 
ments; calyxes very short : having one of the segments linear, 
and 4 times longer than the rest; filaments exserted ; branchlets 
hispid. k. H. Native of Carolina and Georgia, on barren 
sandy hills, Azalea bicolor, Pursh, fl. amer. sept. 1. p. 153. 
Azalea nudiflora, var. bicolor, Ait. hort. kew. 1. p. 319.—Trew. 
ehret. t. 48. Flowers slender and smaller than the rest, of a 
pale rose-colour, or nearly white, with a deep red-coloured 
tube. 
Two-coloured-flowered Rhododendron, 
1734, Shrub 3 to 4 feet. 
48 R. crav'cum ; branchlets hispid ; leaves oblanceolate, 
acute, glabrous on both surfaces, glaucous beneath, ciliated on 
the margins, having the mid-rib bristly; flowers very clammy, 
leafy; tube of corolla twice longer than the segments; calyx 
very short; filaments about equal in length to the segments of 
the corolla. h.H. Native from New England to Virginia, in 
swamps of a clayey soil. Azalea glatica, Pursh, fl. amer. sept. 
1. p. 154, Lam. ill. p. 493. Wats. dendr. brit. 5. Azalea vis- 
cosa, var. floribúnda, Ait. hort. kew. 1. p. 319. Flowers white, 
very fragrant. The shrub is dwarfer than other species of the 
present section, and flowers in great abundance. Nuttall con- 
siders this as only a variety of 4. viscosa, differing in nothing 
but in the under sides of the leaves being glaucous. 
Glaucous-leaved Rhododendron. Fl. June, July. Clt. 1734. 
Shrub 2 feet. 
49 R. cane’scens ; leaves obovate-oblong, downy above, and 
tomentose beneath, not bristly on the middle nerve; flowers not 
clammy, nearly naked; tube of corolla hardly shorter than the 
segments ; teeth of calyx very short, rounded, obtuse; stamens 
hardly exserted. h. H. Native of Lower Carolina, on the 
banks of rivers; and of Virginia, on the mountains of the Caca- 
poon Springs, near Winchester. Azalea canéscens, Michx. fl. 
bor. amer. 1. p. 150. Wats. dendr. brit. 116. Flowers rose- 
coloured. 
Canescent Rhododendron. Fl. May, June. Clt.1812. Shrub 
3 to 4 feet. 
50 R. specidsum; branches hairy; leaves lanceolate, ciliated, 
acute at both ends; calyx pubescent; corolla silky, with obtuse, 
ciliated, lanceolate, undulated segments ; stamens exserted. h. 
H. Native of North America. Azalea specidsa, Willd. enum. 
p. 10. Lodd. bot. cab. 624. Wats. dendr. brit. 116. A coc- 
cinea, Lodd. Flowers scarlet and orange-coloured. There are 
several varieties of this species, varying in the shape of the 
leaves and the colour of the flowers; see Loud. hort. brit. p. 
66. Lodd. bot. cab. 1255. 
Showy Rhododendron, 
4 feet. 
Fl. May, June. Clt. 
Fl. May, June. Clt.? Shrub 3 to 
Secr. VIII. Ruopdra (from poor, rhodon, a rose; colour of 
flowers). Limb of calyx 5-toothed. Corolla bilabiate ; upper 
lip broadest, and 2-3-cleft; lower one bidentate. Stamens 10. 
Capsule 5-celled, 5-valved.—Leaves deciduous. Habit of last 
section, 
51 R. Ruopdra ; leaves oval, quite entire, pubescent and 
glaucous beneath; flowers in terminal clusters, or racemose um- 
bels. h. H. Native of Canada, Newfoundland, and on the 
mountains of New York and Pennsylvania, in bogs. Rhodora 
Canadénsis, Lin. spec. 561. Lher, stirp. nov. 1. p. 141. t. 68. 
Lam. ill. t. 364. Curt. bot. mag. 474. Flowers pale purple, 
rising before the leaves. 
Red-flowered Rhododendron. 
Shrub 2 feet. 
Cult. Of all the genera in existence, Rhododéndron comprises 
the most handsome, elegant, and showy shrubs, well fitted for 
adorning shrubberies, or to be grown singly on lawns. All the 
species grow best in peat soil, or very sandy loam, or vegetable 
Fl. April, May. Clt. 1767. 
ERICACEÆ. XLIII. RHODODENDRON. 
XLIV. Vireya. 
mould: they are either increased by layers or by seeds. When 
raised in the latter way, the seeds must be sown early in the 
spring, in flat pans or pots, filled with peat earth, and covered very 
slightly ; the pots or pans should then be set in a close frame, 
or at the front of a hot-house, till the plants come up, watering 
them very slightly when dry ; and as soon as the seedlings have 
grown high enough to be laid hold of, they should be planted 
out into other pans or pots, filled with the same kind of mould ; 
after which they may stand in a close frame for a few days, until 
they have struck fresh roots, and afterwards hardened to the air 
by degrees. The smaller kinds of Rhododéndron may be propa- 
gated freely by cuttings, taken off from young wood, and planted 
in sand, placing a bell-glass over them. There are now in the 
gardens a great many hybrid kinds of Rhododéndron, and are 
still increasing in number; some of which outvie the species in 
splendour. The species natives of Nipaul, China, and Japan, 
in mild winters, would probably succeed in the open air, but 
they will not survive a severe winter without protection; they 
are therefore best kept in pots, and placed among other green- 
house or frame plants. R. arboreum and R. álbum are among the 
most showy of the species, and are well adapted for conserva- 
tories, or to be placed in large tubs in the greenhouse. Young 
cuttings of the tender kinds, if torn off close to the stem, and 
planted in a pot of sand, will strike root readily; the pot should 
be plunged in heat under a hand-glass. 
XLIV. VIRE‘YA (named by Blume after M. Virey, a French 
physician). Blum. bijdr. p. 854. 
Lin. syst. Decéndria, Monogynia. Calyx small, obsoletely 
5-toothed. Corolla subcampanulate, or funnel-shaped, regular, 
5-lobed, adnate to the disk of the calyx. Stamens 10, inserted 
in the calycine disk; alternate filaments the shortest; anthers 
oblong, bursting inwardly, naked, dehiscing by two pores at the 
apex. Style filiform; stigma capitate, 5-furrowed. Capsule 
silique-formed, 5-angled, 5-celled. Placenta 5-lobed. Seeds 
numerous, expanded into a bristle-formed awn at both ends.— 
This genus differs from Rhododendron in the calyx being small, 
and in the stamens not being attached to the corolla in any 
way.—Mostly parasitical shrubs. Leaves scattered and verti- 
cillate, quite entire, coriaceous, covered with scaly dots beneath. 
Flowers disposed in terminal fascicles. 
* Corollas subcampanulate. 
1 V. Java'nica (Blum. bijdr. 854.) leaves oblong-lanceolate, 
clothed with fine rusty dots beneath; flowers showy, deep 
orange. h.G. Native of Java, at the foot of Mount Salak, 
where it is called by the natives Gaga Mirha. 
‘ar. P ; flowers citron-coloured, smaller. 
Java Vireya. Fl. Year. Shrub. 
2 V. a’tza (Blum. bijdr. 855.) leaves lanceolate, densely 
clothed with rusty scales beneath: flowers white, middle-sized. 
h.G. Native of Java, on Mount Salak, parasitical upon trees. 
Rhododéndron album, Blum. cat. hort. buitenz. p. 72. 
White-flowered Vireya. Fl, Year. Shrub. 
* * Corollas funnel-shaped. 
3 V. rupiriora (Blum. bijdr. p. 855.) leaves lanceolate, 
densely clothed with rusty dot-like scales beneath; flowers 
scarlet. k.G. Native of Java, on the higher mountains. 
Tube-flowered Vireya. Fl. Year. Shrub. 
4 V. Cerr'sica (Blum. 1. c.) leaves broad, lanceolate, clothed 
with rusty dot-like scales beneath; flowers scarlet. h. G 
Native of the Celebes, in mountain woods. 
Celebes Vireya. Fl. Year. Shrub. 
5 V. rervu'sa (Blum. bijdr. p. 856.) leaves spatulate, retuse, 
with recurved margins, beset with rusty dots beneath ; branches 
