CHAP. XXII. ACERA‘CER. ACER. 431 
barbatum, of which a leaf is figured in the Penny Cyclopedia, and several in 
our fig. 125. p. 452., may possibly be only a variety of A. Pseiido-Platanus, 
diminished in all its parts. A. coriaceum, which we consider as a synonyme 
of A. O'palus, and which, in the Penny Cycl., is considered a synonyme of A. 
créticum, may be a more distinct sort than we think it is, from having seen 
only small plants of it. These small plants have leaves as nearly as possible 
of the same form as those of A. O’palus, exhibited in fig. 126. p. 453.; and, 
therefore, the A. coriaceum mentioned in the Penny Cycl. as a synonyme of 
' A. créticum, must refer to a different plant from the specimen of A. coriaceum in 
Loddiges’s arboretum. A. Lobélii Tenore, of which there is a tree, 20 ft. high, 
at Croome, in Worcestershire, certainly appears very distinct from A. plata- 
ndides (of which we have set it down as a variety) in the foliage of the plants 
about 2 ft high in the London nurseries ; but not so in the specimens which 
we have received from Croome. A. nigrum, which we consider as a variety 
of A, sacchérinum, ought to be proved by raising plants from seeds, which can 
be procured from America at the same price as those of A. saccharinum. 
It would not surprise us if A. platandides and A. saccharinum were ultimately 
to turn out to be races of one and the same species. Under the name of 4, 
h¥bridum, it is probable that there is more than one variety or species in cul- 
tivation. The A. hybridum of Bosc, with coriaceous leaves, profoundly trifid, 
seems to be different from the A. hybridum of Baudrillart, which he describes 
as intermediate between A. monspessulanum and A. tataricum. In Don’s 
Miller, there is A. obtusifolium Flor. Grec., t. 361.,a native of Crete; and 
there is also A. obtusatum Xit., a native of Hungary: these may possibly be 
names applicable to one and the same species. A. lobatum Don’s Miller, i. 
p. 651., a native of Siberia, and said to have been introduced in 1820, is there 
designated an “ extremely doubtful” species. 
App. ii. Anticipated Species of A*cer. 
All the species of this family are so interesting and ornamental, that it is 
desirable to procure additions to those already introduced into Britain, from 
every quarter of the globe, and by every resouree which art supplies. It 
appears, from Don’s Miller and Royle’s Illustrations, that there are one or 
two European species, one from N. America, several from the Himalayas, and 
some from Japan, all likely to prove hardy, which are at present wanting in 
British collections. We shall give the names of these, in the hope of direct- 
ing to them the attention of travellers, collectors, and patriotic amateurs. 
A. ibéricum Bieb., a tree 20 ft. high, native of Iberia, with greenish yellow flowers, and 
shining 3-lobed leaves, is described in Bieberstein’s Flora Taurico-Caucasica, vol. ii. p, 447.; in Dec. 
Prod., ar 594. ; and in Don’s Miil., 1. p. 649. 
*% A. obtusifilium Sibth. and Smith, a native of Crete, a tree 15 ft. high, with 3-lobed crenated 
leaves, is described in the Flora Greca, and in Don’s Mill. ; in the latter work it is mentioned as 
being of doubtful introduction. 
t A. parvifilium Tausch is described as having 5-lobed leaves, and nodding corymbs of flowers. 
It is a native of the south of Europe, growing to the height of 90 ft., by some confounded with A. eré- 
ticum, and by others with 4. monspessulanum, 
A. Oban Torrey has smooth roundish 5-lobed leaves, and is found in North America, on the 
Rocky Mountains. Very little appears to be known of this species. 
A. levigatum Wall. has oblong, acuminated, smooth, shiping he and white flowers, It is a 
native of Nepal, on high mountains, where it forms a tree 40 ft. high. It is described and figured 
by Dr. Wallich in his Plant. Asiat. rar., 2. p. 5. t. 104 
A. acumindtum Wall., a tree of Nepal, with leaves varying from 3-lobed to 5-lobed, is described 
in Don’s Prod. Fl. Nep., p. 249. 
A. cultrdtum Wall., a tree of Himalaya, with cordate, 7-lobed, acuminated leaves, is described 
by Wallich in his Plant@ Asiatice rariores, vol. ii. p. 4. 
ae cauddtum Wall. a tree from the highest regions of Nepal, with long pointed leaves, is de- 
seri in the work last quoted, vol ii. p. 4., and in Don’s M/7U., 1. p. 648. 
¥ A. villdsum Wall., a tree 50 ft, high, native of the high alps of the Himalaya, near to perpetual 
snow, has cordate 5-lobed leaves, and ant flowers. It is described in Dr. allich s work, and in 
Don’s Mill., as before quoted. 
*% A. sterculidceum WallL., is a tree 50 ft. high, with a trunk 3 ft. in diameter. The leaves are very 
large, with long petioles, and the flowers are white. It is found in Nepal, on Mount Shiopore, 
: A. disséctum Thun. is atree of Japan, with leaves 9—10-parted, and oblong acuminated lobes, 
with a red corolla. It is described by Thunberg in his Flora Japonica, p. 160. ; in Dec, Prod., i. 
p. 955. ; and Don's MriZ., i. p. 650. 
HU 
