Michigan Trees - novelonlinefull.com
You’re read light novel Michigan Trees Part 46 online at NovelOnlineFull.com. Please use the follow button to get notification about the latest chapter next time when you visit NovelOnlineFull.com. Use F11 button to read novel in full-screen(PC only). Drop by anytime you want to read free – fast – latest novel. It’s great if you could leave a comment, share your opinion about the new chapters, new novel with others on the internet. We’ll do our best to bring you the finest, latest novel everyday. Enjoy
2. Leaf, 1/2.
3. Flowering branchlet, 1.
4. Flower, enlarged.
5. Fruit, 1/2.]
+OLEACEAE+
+Blue Ash+
_Fraxinus quadrangulata Michx._
HABIT.--A large tree 50-80 feet high, with a trunk diameter of 1-3 feet; small, spreading branches and stout, 4-angled, more or less 4-winged branchlets form a narrow crown.
LEAVES.--Opposite, pinnately compound, 8-12 inches long. Leaflets 5-9, usually 7, 3-5 inches long, 1-2 inches broad; short-stalked; ovate-oblong to lanceolate, long-pointed; coa.r.s.ely serrate; thick and firm; yellow-green above, paler beneath, glabrous. Petioles slender, glabrous.
FLOWERS.--April, before the leaves; perfect; borne in loose panicles on shoots of the previous season; calyx reduced to a ring; corolla 0; stamens 2; ovary 2-celled.
FRUIT.--September-October, falling soon after; samaras 1-2 inches long, in long, loose, paniculate cl.u.s.ters.
WINTER-BUDS.--Short, rather obtuse; bud-scales rounded on the back, 3 pairs, dark red-brown, somewhat p.u.b.escent.
BARK.--Twigs orange, rusty-p.u.b.escent, becoming brownish or grayish; on the trunk light gray tinged with red, irregularly divided into large, plate-like scales, often with the s.h.a.ggy appearance of a s.h.a.gbark Hickory.
WOOD.--Heavy, hard, close-grained, brittle, light yellow-streaked with brown, with thick, light yellow sapwood.
DISTRIBUTION.--Occasionally in the southern half of the Lower Peninsula.
Nowhere abundant.
HABITAT.--Prefers rich, limestone hills, but grows well in fertile bottom-lands.
NOTES.--Hardy and grows rapidly. A blue dye is made by macerating the inner bark in water.
[Ill.u.s.tration: +Black Ash+
1. Winter twig, 1.
2. Leaf, 1/3.
3. Staminate flowering branchlet, 1/2.
4. Staminate flower, enlarged.
5. Pistillate flowering branchlet, 1/2.
6. Pistillate flowers, enlarged.
7. Fruit, 1.]
+OLEACEAE+
+Black Ash+
_Fraxinus nigra Marsh._ [_Fraxinus sambucifolia Lam._]
HABIT.--A tall tree 60-80 feet high, with a trunk diameter of 1-2 feet; slender, upright branches form in the forest a narrow crown, in the open a rounded, ovoid crown.
LEAVES.--Opposite, pinnately compound, 12-16 inches long. Leaflets 7-11, 3-5 inches long, 1-2 inches broad; sessile, except the terminal; oblong to oblong-lanceolate, long-pointed; remotely, but sharply serrate; thin and firm; dark green above, paler beneath, glabrous. Petioles stout, grooved, glabrous.
FLOWERS.--May, before the leaves; polygamo-dioecious; borne in loose panicles on shoots of the preceeding season; calyx 0; corolla 0; stamens 2; ovary 2-celled.
FRUIT.--August-September, falling early, or sometimes hanging on the tree until the following spring; samaras 1-1-1/2 inches long, in open, paniculate cl.u.s.ters 8-10 inches long.
WINTER-BUDS.--Ovoid, pointed; bud-scales rounded on the back, 3 pairs, almost black.
BARK.--Twigs at first dark green, becoming ashy gray or orange, finally dark gray and warted; thin, soft ash-gray and scaly on the trunk. Bark flakes off on rubbing with the hand.
WOOD.--Heavy, tough, coa.r.s.e-grained, weak, rather soft, dark brown, with thin, lighter colored sapwood.
DISTRIBUTION.--Common throughout most portions of Michigan.
HABITAT.--Prefers deep, cold swamps and low river-banks, but grows in any good soil.
NOTES.--Hardy throughout the state. Not easily transplanted. Foliage falls early in autumn.
+SUMMER KEY TO THE SPECIES OF CATALPA+
a. Leaves 5-8 inches long, thick; flowers 1-1/2 inches across, prominently yellow-spotted; seeds with _pointed_, fringed wings at each end; branches rather crooked and straggling; bark thin, separating into thin scales on the trunk. _C.
bignonioides_, p. 227.
aa. Leaves 8-12 inches long, thin; flowers 2-1/2 inches across, not prominently spotted; seeds with _rounded_, wide-fringed wings at each end; branches not crooked and straggling; bark thick, separating into thick scales on the trunk. _C. speciosa_, p. 225.
+WINTER KEY TO THE SPECIES OF CATALPA+
a. Fruiting capsules about 1/4 inch thick; seeds with _pointed_, fringed wings at each end; branches rather crooked and straggling; bark thin, separating into thin scales on the trunk. _C. bignonioides_, p. 227.
aa. Fruiting capsules about 1/2 inch thick, seeds with _rounded_, wide-fringed wings at each end; branches not crooked and straggling; bark thick, separating into thick scales on the trunk. _C. speciosa_, p. 225.
[Ill.u.s.tration: +Hardy Catalpa+
1. Winter twig, 1.
2. Leaf, 1/4.
3. Panicle of flowers, 3/8.
4. Fruit, 1/2.
5. Seed, 1.]
+BIGNONIACEAE+
+Hardy Catalpa+
