CATALPA SPECIOSA Warder. Catalpa. Hardy Catalpa. (× 1/2.)]

=2. Catalpa speciòsa= Warder. Catalpa. Hardy Catalpa. Catalfa. Plate

133. Medium to large sized trees with long and rather straight trunks

when grown in the forest; bark dark grayish-brown, fissured and much

resembling the bark of a linden or black walnut in appearance; leaves

ovate, generally 1.5-3 dm. long, cordate or somewhat rounded at the

base, long taper-pointed at apex, margins entire, dark green and smooth

above, pubescent beneath; flowering period May or June; flowers in large

terminal panicles, white with yellow and purplish spots within, expanded

part about 4 cm. across; fruit a long cylindrical pod which matures late

in autumn or early winter, 2-5 dm. long, and about 1.5 cm. in diameter,

usually 1 or 2 and rarely 3 pods develop in a panicle, the valves of the

pod remaining semi-terete after separating; seed many, thin and papery,

2.5-5 cm. long, and 4-8 mm. wide, body of samara about equals in length

the tuft of hairs at each end, the hairs remain separated and are little

inclined to form a tuft at the end.

=Distribution.=--Known to have been a native of the southwestern part of

Indiana, and to have followed the valley of the Ohio and Mississippi

Rivers to the southeastern part of Missouri and the northeastern part of

Arkansas. The tree has practically disappeared from the forests of

Indiana, and the exact range in Indiana can never be known. Being such a

conspicuous tree, it was thought that the memory of living pioneers

might be relied upon to fix the limits of its range in Indiana. One

pioneer living near Austin in Scott County said it was a native of the

Muscatatuck bottoms, and another said it was a native in the flats of

the southwestern part of Clark County. In its native habitat it was

found only in very low ground, usually with such associates as pin oak,

sweet gum, southern hackberry, big shellbark hickory, pecan, etc. In its

native habitat it was an infrequent to a frequent tree, never a common

tree. A pioneer was interviewed who settled in the Knox County bottoms

about three miles west of Decker, when the whole area was a virgin

forest. He said the catalpa was an occasional tree in the bottoms

throughout the area; that he did not recall that it was ever found in as

low situations as the cypress; that the tree was as tall as its

associates, straight, and usually about 6 dm. in diameter, and that he

never saw a tree a meter in diameter; that on account of the durable

quality of the wood that it was cut for fence posts and rails. A pioneer

who lived near the mouth of Deer Creek in Perry County said it was a

native in his vicinity. The information at hand would fix the mass

distribution of the species to the southwest of a line drawn from Terre

Haute to a point about 6 miles east of Grandview in Spencer County.

=Remarks.=--Attention was directed to this tree about 1880 by Dr. John

A. Warder and Dr. Geo. Engelmann, and it has had enthusiastic admirers

ever since. In Indiana its most enthusiastic advocate was John P. Brown

of Connersville. Its popularity was based upon the durability of its

wood and its rapid growth. Nurserymen grew seedlings and through their

agents plantations of all sizes were sold in many States. The trees

were planted to grow posts, telephone poles and crossties. In Indiana

there is one plantation 42 years old, but the majority are only 10 to 15

years old. The tree has been planted long enough in our area to

definitely conclude that it should not be planted in any part of Indiana

for economic purposes. The range of the catalpa sphinx which defoliates

the tree is rapidly increasing, and now ranges as far north as Wells

County. In the southern part of the State the trees are usually

defoliated twice each year by the larvæ of this insect, and as a

consequence the trees make very little growth, and some owners of

plantations have abandoned them on this account. A new insect is

appearing which kills the young shoots, which will interfere with the

upright habit of the tree. The catalpa is not recommended for forest

planting in Indiana, and its use for this purpose has practically

ceased.

The catalpa prefers a moist, deep, rich soil, but will grow in almost

all kinds of situations. In the northern part of the State, the young

trees are frequently winter killed. The tree is quite tenacious of life

and when cut off at the ground, usually sends up several coppice shoots.

This species can be recommended for planting for shade for hog lots, and

as a specimen tree in parks, etc. It is not a desirable street tree.

=CAPRIFOLIÀCEAE.= The Honeysuckle Family.

=VIBÚRNUM.= The Viburnums.

=Viburnum prunifòlium= Linnæus. Black Haw. Plate 134. Small trees or

shrubs; bark of old trees reddish-brown, furrowed and the ridges broken

into short lengths; leaves simple, opposite, on petioles 0.5-1.5 cm.

long; the lower pairs of leaves are generally smaller and have their

petioles more or less winged, red and more or less densely covered with

a rusty tomentum which may extend along the midrib and veins beneath or

may sometimes cover a considerable part of the lower surface of the leaf

while young, sometimes the margined petioles are only rough on the

margins; leaf blades very variable in size and shape, usually 4-10 cm.

long, ovate to slightly obovate, or narrow-oval to nearly orbicular,

narrowed or rounded at the base, pointed at the apex, or sometimes

rounded, margins finely serrate, glabrous both above and beneath at

maturity; flowers appear the last of April or in May in cymes which are

sessile or nearly so, flowers white, numerous, and generally about 0.5

cm. in diameter, fruit ripens in September and October, oval, oblong or

nearly globose, generally 10-14 mm. long, dark blue, covered with a

bloom, edible, and if not eaten by birds they persist on the branches

until late autumn; stone oval and very flat.

[Illustration: Plate 134.

Trees of Indiana First Revised Edition (Publication No. 13, Department of Conservation, State of Indiana) · 第 183 / 265 题