414 ARBORETUM AND FRUTICETUM. PART TT. 
brilliant day, the sap flows abundantly; and two or three gallons of sap 
are sometimes yielded by a single tree in twenty-four hours. The yearly 
product varies from 2 lb. to 41b. of sugar each tree. Trees which grow in 
low and moist places afford a greater quantity of sap than those which oc- 
cupy rising grounds; but it is less rich in the saccharine principle. That of 
insulated trees, left standing in the middle of fields, or by the side of fences, 
is the best. It is also remarked, that, in districts which have been cleared 
of other trees, and even of the less vigorous sugar maples, the product of the 
remainder is proportionably greater. 
Wild and domestic animals are inordinately fond of maple juice, and break 
through their enclosures to sate themselves with it. (Michaux, p.236.) 
In Europe, it is not likely that the extraction of sugar from any species of 
maple will ever be tried otherwise than as a matter of curiosity. Count 
Wingersky is said to have planted a great many trees of A. saccharinum on 
his estates in Moravia, and to have drawn off the sap from them at the age 
of 25 years, in order to make sugar. He succeeded in procuring a very good 
sugar; but, in consequence of drawing sap from the trees every year, they 
became sickly, and soon afterwards died. E 
Soil and Situation, Propagation, §c. The same soil may be recommended 
as for A. platandides; but, as the species is considerably more tender, it 
requires a more sheltered situation. In British nurseries, it is always raised 
from American seeds. 
Statistics. The largest tree in the neighbourhood of London is at Purser’s Cross, where it has at. 
tained the height of 45 ft. In Berkshire, at High €lere, 6 years planted, it is 24 ft. high; at White 
Knights, 25 years planted, 21 ft. high ; in Herefordshire, at Eastnor Castle, 14 years planted, 30 ft. 
high; in Cumberland, at Ponsonby Hall, 20 years planted, and 24 ft. high ; in Cheshire, at Kinmel 
Park, 20 years planted, and 24 ft. high; in Staffordshire, at Trentham, 26 years planted, and 35 ft. 
high; in Yorkshire, at Cannon Hall, 42 ft. high; in Hertfordshire, at Cheshunt, 6 years planted, 
and 18 ft. high; in Edinburghshire, at Dalhousie Castle, 7 years planted, and 9 ft. high; in Bamff- 
shire, at Gordon Castle, 33 ft. high. In France, in the Botanic Garden at Toulon, 36 ft. high. In 
Saxony, at Worlitz, 60 years planted, and 50 ft. high. In Austria, at Kopenzel, near Vienna, 6 
years planted, and 14 ft high. In Bavaria,in the Botanic Garden at Munich, 20 years planted, and 
8 ft. high. In Cassel, at Wilhelmshoe, 24 years planted, and 30 ft. high. -Some of the largest 
sugar maples in America, according to Mr. Douglas, are on Goat Island, at the Falls of Niagara. 
Commercial Statistics. In the London nurseries, plants cost 2s. each, and 
seeds 2s. per ounce; at Bollwyller, plants are 1 franc 50 cents each ; and at 
New York, 15 cents a plant, and seeds 2 dollars 25 cents per pound. 
¥ 8. A. Psev‘po-Pia’tanus DL. The Mock Plane Tree, the Sycamore, or 
Great Maple. 
Zaentification. Lin. Sp., 1469, ; ‘Don’s Mill., 1. p. 648. 
Synonymes. Plane Tree, Scotch ; E'rable Sycamore, E/rable blanc de Montagne, fausse Platane, or 
grand H’rable, Fr. ; Ehrenbaum, weisser Ahorn, gor emeine Ahorn, Ger. 
Engravings. Duh. Arb., 1. t.36.; Tratt. Arch., 1. No. 2.; Willd. Ab., t. 213.; Krause, t. 121. ; our 
Jig. 12% in p. 448, 449.; and the plate of this species in our Second Volume. 
Spec. Char. &c. Leaves cordate, smooth, with 5 acuminated, unequally 
toothed lobes. Racemes pendulous, rather compound, with the rachis, as well 
‘as the filaments of stamens, hairy. Fruit smooth, with the wings rather 
diverging. (Don’s Mill., i. p. 648.) A deciduous tree, native of Europe, 
flowering in‘May and June. Height from 30 ft. to 60 ft. Sexes mostly 
hermaphrodite. 
Varieties. 
¥ A, P.2 fldvavariegata. The yellow variegated Sycamore, or Costorphine 
Plane with leaves variegated with yellow. — The original tree stands 
near an old pigeon-house in the grounds of Sir Thomas Dick 
Lauder, Bart., in the parish of Costorphine, near Edinburgh. Seeds 
of this variety, sown, have produced plants with green leaves; but in 
some of the plants the footstalks of the leaves were of a yellowish 
green colour, and this colour was partaken of by the leaf: in the 
other plants the petioles were strongly tinged with red, and the 
leaves were of a darker green than those of the first-mentioned 
plants. ' 
¥ A. P. 3 dlbo variegdta Wayne. The white varicgated-leaved Sycamore.— 
