The two nuts to right are from the McCallister hybrid pecan tree.]

There are several trees on the Elisha Golay farm about one mile east of

Vevay which are in rows, which show that they were planted. The largest

has a trunk 2.2 m. long and a circumference of 31 dm. It followed the

north fork of White River as far as Greene County, and the south fork of

White River as far as Seymour. A pioneer told me he remembered a small

colony in the eastern part of Washington County in the bottoms near the

Muscatatuck River. In Indiana it is found only in very low land which is

subject to overflow.

=Remarks.=--So far as the wood is concerned, the pecan is the poorest of

all hickories. It has only about one-half the strength and stiffness of

the shellbark hickory. Although the wood is inferior, the pecan has the

distinction of producing the best nut of any native tree of America. The

pecan was well known to the Indians, and some authors say the range of

the species was extended by planting by the Indians. It has been a nut

of commerce ever since the area of its range has been settled. It was

planted by the pioneers, and recently nurserymen took up the subject of

growing stock by budding and grafting from superior trees. At present

there are about 100 horticultural varieties. The horticulturist has

developed forms twice the size of the native nuts, and with shells so

thin as to be styled "paper-shelled." The pecan has been extensively

planted for commercial purposes in the southern states, but information

obtained from owners of pecan trees in Indiana indicate that the winters

are too severe for profitable pecan culture in Indiana. During the

winter of 1917-18 the whole of a tract of 13 year old pecan trees on the

Forest Reserve in Clark County was killed back to the ground. In Noble

County about one mile south of Wolf Lake is a tree planted about 50

years ago that is about 9 dm. in circumference that frequently sets nuts

but they never mature on account of the early frosts.

=2.= =Carya cordifórmis= (Wangenheim) K. Koch. Pignut Hickory. Plate 23.

Large tall trees with tight bark, usually a light gray, sometimes

darker, fissures shallow and very irregular; twigs at first green,

somewhat hairy, soon becoming smooth or nearly so, and a

yellowish-brown, or reddish-brown by the end of the season; leaves and

leaflets variable, the prevailing type of trees have smaller leaves with

long and narrow leaflets, the unusual form has larger leaves up to 4 dm.

in length with terminal leaflets up to 2 dm. in length and 8.5 cm. in

width, and the last pair almost as large; fruit subglobose or rarely

oblong, 2-3.5 cm. long; wings of sutures extending to below the middle,

rarely one reaching the base; husk about 1.5 mm. thick, tardily

separating to about the middle; nut ovoid or oblong, slightly flattened

laterally, often as wide or wider than long, depressed, obcordate, with

a short or long point at the apex, ovoid or rounded at the base, smooth

or rarely with four distinct ridges; shell very thin and brittle; kernel

very bitter; wood heavy, very hard, strong, tough and close-grained. It

has about 92 per cent of the strength and about 73 per cent of the

stiffness of shellbark hickory.

[Illustration: Plate 23.

Trees of Indiana First Revised Edition (Publication No. 13, Department of Conservation, State of Indiana) · 第 59 / 265 题