Specimens from type tree.]

=12.= =Quercus Schnéckii= Britton. Schneck's Oak. Plate 51. Large trees;

bark somewhat intermediate between pin and red oak; twigs gray by

autumn; winter buds large, about 0.5 cm. long, ovoid, glabrous and gray;

leaves on petioles 2-6 cm. long, blades generally 8-18 cm. long,

generally truncate at the base, sometimes wedge-shaped, leaves ovate to

obovate in outline, divided into 5-7 lobes, by deep rounded and wide

sinuses, the sinuses cutting the blade to more than half way to the

midrib, except the leaves of lower branches that grow in the shade, the

lobes variable in shape and size, usually the lowest are the shortest

and smaller, the middle the longest and largest, the lobes are sometimes

widest at the base, and sometimes widest at the apex, the end of the

lobes are more or less toothed or lobed; the leaves at maturity are

bright green, glossy and smooth above, a paler and yellow green and

smooth beneath except tufts of hairs in the axils of the principal

veins; acorns solitary or in pairs, usually on stalks about 0.5 cm.

long; nuts ovoid, sometimes broadly so, or oblong, broad and flat or

slightly convex at base, usually 1.5-2 cm. long, enclosed in the cup

from 1/4-1/3 their length; cups flat or convex at the base: scales

generally pubescent on the back, gray or with a reddish tip on those of

the Lower Wabash Valley, or reddish gray and with margins more or less

red of trees of the Upper Wabash Valley.

=Distribution.=--In Indiana this species has been reported only from

Wells, Bartholomew, Vermillion, Knox, Gibson and Posey Counties. This

species was not separated from our common red oak until after all of the

local floras of Indiana had been written, and it may have a much wider

range than is at present known. In Wells County it is the prevailing

"red oak" of the county, and no doubt is distributed throughout the

Wabash Valley. In this area it is associated with all moist ground

species. In the lower Wabash Valley, especially in Gibson, Knox and

Posey Counties it is associated with Spanish, pin, and shingle oaks,

sweet gum, etc. Several trees were noted in Knox County in Little

Cypress swamp where it was associated with cypress, pin oak, white elm,

red maple and swell-butt ash.

=Remarks.=--This anomalous red oak has a range from Indiana to Texas.

When the attention of authors was directed to it, several new species

were the result. Later authors are not agreed as to whether this form,

which has such a wide range and hence liable to show considerable

variation within such a long range, is one or several species. C. S.

Sargent who for years has studied this form throughout its range has

seen the author's specimens and calls those with shallow cups typical or

nearly typical _Quercus Shumardii_ Buckley[42] and those with the deep

cups _Quercus Shumardii_ variety _Schneckii_ (Britton) Sargent.

The writer has made rather an intensive study of the forms in Wells

County and in the Lower Wabash Valley and has not been able to satisfy

himself that, allowing for a reasonable variation, there is even a

varietal difference in Indiana forms. The description has been drawn to

cover all of the forms of Indiana.

Dr. J. Schneck of Mt. Carmel, Illinois, was one of the first to discover

that this form was not our common red oak, and when he called Dr.

Britton's attention to it, Dr. Britton named it _Quercus Schneckii_ in

honor of its discoverer.

=13.= =Quercus ellipsoidàlis.= E. J. Hill. Hill's Oak. Plate 52. Medium

sized trees; inner bark yellowish; twigs pubescent at first, becoming

smooth and reddish brown by autumn; leaves on petioles 2-5 cm. long,

ovate to slightly obovate or nearly orbicular in outline, 7-15 cm. long,

wedge-shape or, truncate at the base, margin divided into 5-7 long lobes

by wide sinuses which usually extend to more than half way to the

midrib, sinuses rounded at the base, lobes broadest at the base or the

apex, ending in 1-7 bristle points, leaves at first pubescent, both

above and below, soon becoming glabrous above, and smooth beneath except

tufts of hairs in the axils of the principal veins; acorns nearly

sessile or on short stalks, single or in pairs; nuts oval to oblong,

12-20 mm. long, enclosed for 1/3-1/2 their length in the cup; scales

obtuse, light reddish-brown, pubescent on the back; kernel pale yellow

and bitter.

=Distribution.=--Northwestern Indiana to Manitoba and south to Iowa. In

Indiana it has been reported only from Lake and Porter Counties by Hill,

and from White County by Heimlich. According to Hill, who has made the

most extensive study of the distribution of this species in our area,

the tree is found on sandy and clayey uplands, and in moist sandy

places. It closely resembles the pin oak for which it has been mistaken.

It also resembles the black and scarlet oaks. We have very little data

on the range or distribution of the species in this State.

=14.= =Quercus velùtina= Lamarck. Black Oak. Plate 53. Medium to large

sized trees; inner bark yellow or orange; leaves on petioles 2-8 cm.

long, ovate oblong or obovate, very variable in outline and in size,

those of young trees and coppice shoots being very large, those of

mature trees usually 12-18 cm. long, wedge-shape or truncate at the

base, the margin divided into 5-9 lobes by wide and usually deep sinuses

which are rounded at the base, the lobes variable in shape and size, the

terminals of many of the lobes toothed or slightly lobed and ending in

one or more bristles, leaves pubescent on both sides at first, soon

becoming smooth, glossy and a dark green above; leaves of fruiting

branches usually smooth beneath except the tufts of brown hairs in the

axils of the principal veins, or rarely more or less pubescent over the

whole under surface, the under surface of leaves of sterile branches and

young trees usually are the most pubescent beneath, the leaves of some

trees are much like those of the scarlet oak, but on the whole are

larger; acorns sessile or nearly so, single or in pairs; nuts ovoid,

oblong or subglobose, 1.5-2 cm. long, enclosed for about half their

length in the cup-shaped cup; scales light-brown, densely pubescent on

the back, obtuse, loose above the middle of the cup; kernel bitter.

[Illustration: Plate 52.

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