■ ü
by tlie exudation o f th e sap and th e admission o f th e weather, no longei
to throw up vigorous shoots, and it will decay in a few years.
S 2. A. o b lo n g a 't a Willd. The oblong-feOTci Alder.
I d p n i f i c n t io n . W iU d . S p . P l . , 4. p . 3 35. ; B a u m . , p . 20. ;
N . D u H am ., 2. p . 215.
S y n o n y m e s , z l 'ln u s fo l. o b lo n g ., & c ., B a n k . ; A . fo l. o v a to -
‘ l a n c e o l , & c ., M ü l . D ie t. eel. 7 . ; l ä n g lic h e E l s e , G c r .
E n g r a v in g s . O n r ß g . 1515. f rom a s p e c im e n in S i r . J .
H o o k e r ’s h e r b a r i u m ; a n d / g . 151C. f ro m a s p e c im e n m
t h e M u s e um o f t h e J a r d i n d e s P l a n to s .
Char., 4t*
Leaves elliptic, somewhat
obtuse, glutinous ; axils
o f th e veins naked on
th e under side.( Willd.) A
large deciduous shrub or
low tre e. Hungary, Austria,
and Turkey. Iie ig h t
20 ft. to SO ft. In tro duced
in 1749. Flowers
greenish ; March and
April. F ru it brown ; ripe
in October or November.
Variety.
afe ¥ A. 0. 2 ß liis ellip-
ticis Ait. A. pii-
mila Lodd. Cat.
—Th e ¡eaves are
1515. A. oWongàt. 151C. A . oblongiMa.
somewhat narrower than in th e species.
¥ 3. A. i n c a ' n a Willd. T h e hoavy-leavcd Alder.
I d e n ti fic a tio n . W i l ld . S p . ,P 1 ., 4 . p . 3 35. ; N . D u
H am . , 2. p . 215. ; H ö s s A n le itu n g , p. 100.
S y n o n y m e s . B . . á 'l n u s v a r . in c à n a L i n . S p . P l . 1304. ;
B . in c à n a L i n . S u p p l. ; B . v i r id i s V ili. D a u p h . 2,
p . 789. j w e i s s e E r i e , g r a u e E l s e , o r w e i s s e E l l e r ,
G cr.
E n g r a v in g s . H a y n e A b b i ld ., t. 136. ; a n d o u r f i g .
Spec. Char., S/v. Leaves oblong, acute,
pubescent beneath ; axils o f th e veins
naked. Stipules lanceolate. (Willd .)
A deciduous tre e. Lapland, Sweden,
and P ru s s ia ; and on th e hills in Austria,
Carniola, th e Ukraine, Tyrol, and
Switzerland ; also in North America.
Height 50 ft. to 70 ft. Introduc ed in
1780. ■ Flowers greeni.sh; March and
April. F ru it brown ; ripe in October.
Varieties.
¥ A. i. 2 laciniàta Lodd. Cat ed. 1836. — Tlie leaves are slightly laciniated.
H o rticu ltu ral Society’s Garden.
¥ A. 3 glauca. A. glauca Michx. N . Amer. Sylv. ; R é tu la incàna var.
glaúca Ait. ; Black Alder, Amer. — Th e leaves are dark green above,
and glaucous beneath ; th e petioles reddish. This is one o f the
most beautiful trees o f th e genus.
¥ A . i . 4 angulàta A it.— Leaves green underneath, with th e petioles
also o f a dark green.
Other Varieties. A. americàna Lodd. C at., and A. canadénsis Lodd.
Cat., appear to belong to this species; b u t th e plants in th e Hackney arboretum
are so small, th a t we have n o t been able to satisfy ourselves that
they are sufficiently distinct to co n stitu te even varieties.
A . incàna differs from th e common alder, in th e leaves being pointed, in the
leaves and the young wood n o t being glutinous, in th e ir hoary appearance,
and in the absence o f tufts o f hair in th e axils o f th e nerves o f th e leaves
It forms a very handsome tre e , will grow in e ith er dry o r moist soil, and well
deserves a place in ornamental plantations.
Sfe 4. A. s e r r u l a ' t a Willd. The saw-
leaved Alder,
Id e n tific a tio n . W i lld . S p . P l . , 4 . p . 3 36. ; P u r s h
S e p t., 2 . p . 6 23. ; M ic h x . N . A m e r . S y l., 2. p . 113.
S y n o n ym e s . P é t u l a s e r r u l à t a A i t . l l o r t . K e w . 3.
‘ p . 3 3 8 .; 5 . r u g ó s a E h r h . l i e y l r . 3 . p . 2 1 .; f A .
am e r ic à n a Lo rfd . C a t. e d . 1836 ; ? A . c a n a d é n s i s
L o d d . C a t. 1 8 3 6 ; c om m o n A ld e r , A m e r . ; H a z e l -
le a v e d A ld e r .
E n g r a v in g s . W a n g . A m e r ., t . 2 9 . f . 6 0 . ; M ic h x . N .
A m e r. S y l ., t. 76. f . 1. ; a n d o u r f i g . 1518. f rom a
liv in g sp e c im e n .
Spec. Char., 4’C, Leaves obovate, acuminate
; veins and th e ir axils hairy on
the under side. Stipules elliptic, obtuse.
(W illd .) A deciduous shrub.
North America, in swamps and on
river sides. Height 6 ft. to Ì0 ft.
Introduced in 1769. Flowers greenish;
March and April. F ru it brown ; ripe
in October o r November.
Its leaves are o f a beautiful green,
about 2 in. long ; oval, distinctly furrowed
on the surface, and doubly denticulated
at the edge. T h e wood, when cu t into,
i.s white ; b u t like th a t o f all th e alders,
it becomes reddish when it comes in contact
with th e air. 1518. seiTulita.
^ 5. A. u n d u l a 't a Willd. T h e vjascA-leaved
Alder.
I d e n ti fic a tio n . W i lk i . S p . P l . , 4 . p . 336. ; B a u m ., p . 2 1 . ; L o d d
O a t ., e d . 1836.
S y n o n y m e s . j5 e tu la c r i s p a A i t . H o r t . K e w . 3 . p . 3 3 9 . ; B . j4 'ln u s
v a r . c r is p a M ic h x . E l. l lo r . A m e r . 2. p . 1 8 1 .; A . c r is p a P u r s h
E l. A m e r . S e p t. 2 . p . 6 2 3 , N - D u H a m . 2. p . 216.
E n g r a v i n g . O u r J ig . 1519. f rom a s p e c im e n i n t h e B r i ti s h
M u s e um .
Spec. Char., 4'C. Leaves oblong, acute, rounded
a t th e base ; petioles and veins hairy on th e
under s id e ; axils o f th e veins naked ; stipules
ovate-oblong. (Willd .) A deciduous shrub.
Canada, and ou high mountains in sphagnous
swamps in Pennsylvania. Fleight ? 10 ft. tc
1 5 ft. In tro d u c ed in 1782. Fiowers greenish;
March and April. F ru it brown ; ripe in Octo b e r.
1510. i<. u n dulà ta.
¥ 6. A. coRUiFo'i.iA Lodd. T h e hcart-leavcd Alder.
I d e n ti fic a tio n . L o d d . B o t . C a b ., t . 1231.
S y n o n ym e . A . c o r d à t a T e n o r e P r o d . 5 4 ., l l a i / n e D e n d . p . 153.
E n g r a v in g s . B o t. C a b ., t . 1231. ; t h e p l a t e o f t h i s s p e c ie s in A rb . B r i t . , 1 s t e d i t . v o l. v i i . ; a n d o u r
Sjmc. Char., S/c. Leaves heart-shaped, acuminate, dark green and shining
(Tenore.) A tre e o f similar magnitude to th e common alder. Calabria
and Naples, in woods. Height 15 ft. to 20 ft. In tro d u c ed in 1820.
Flowers greenish brown ; March and April, before th e developement o f the
leaves. F ru it b row n ; ripe in October.
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