He looked relieved and reached up, pulling a leaf from her hair.
There was evaporation of water from the leaf.
A, Ordinary leaf of Cephalotus.
I hung up, my hand still shaking like a leaf in a windstorm.
A golden leaf floated down in the cool morning mist and joined a carpet of others under the tree.
B, Monstrous leaf with spoon-shaped depression.
Sarah would say, "Seen one orange leaf, seen 'em all."
Hardly a leaf is visible to the height of one's head; but above, a crown of thick leather-like leaves shuts out the sunlight.
The centre of the leaf is often occupied by a midrib consisting of several layers of cells.
She shook like a leaf in a thunderstorm, her warm brown eyes wide and tears streaming down her cheeks.
The oak in Europe is liable to injury from a great variety of insect enemies: the young wood is attacked by the larvae of the small stag-beetle and several other Coleoptera, and those of the wood-leopard moth, goat moth and other Lepidoptera feed upon it occasionally; the foliage is devoured by innumerable larvae; indeed, it has been stated that half the plant-eating insects of England prey more or less upon the oak, and in some seasons it is difficult to find a leaf perfectly free from their depredations.
I remember well one gaunt Nimrod who would catch up a leaf by the roadside and play a strain on it wilder and more melodious, if my memory serves me, than any hunting-horn.
The overhanging leaf sees here its prototype.
Laymen may read the book of nature, and Man himself is the most important " leaf " in it.
The Mosses and Liverworts include forms with a more or less leaf-like thallus, such as many of the liverworts, and forms in which the plant shows a differentiation into a stem bearing remarkably simple leaves, as in the true mosses.
These are elongated in the direction of the length of the leaf, are always poor in chlorophyll and form a channel for conducting the products of assimilation away from the leaf into the stem.
In other cases the trace passes inwards and joins the central hydrom strand, so that a connected water-conducting system between stem and leaf is established.
The leaf-stalks and flowerstalks are traversed by longitudinal air-passages, whose disposition varies in different species.
After another moult the insect passes into the passive nymphal or " pupal " stage, during which it takes no food and rests in some safe hiding-place, such as the soil at the base of its food-plant or the hollow of a leaf-stalk.
The title, which is written on the first leaf, and is also in Robert Napier's writing, runs thus: "The Baron of Merchiston his booke of Arithmeticke and Algebra.
Among the Merchiston papers is a thin quarto volume in Robert Napier's writing containing a digest of the principles of alchemy; it is addressed to his son, and on the first leaf there are directions that it is to remain in his charter-chest and be kept secret except from a few.
Thus any twining plant with a heart-shaped leaf, white and green above and purple beneath, is called by them guaco (R.
They are shrubby plants climbing over surrounding vegetation by means of tendrillike prolongations of the midrib of the leaf beyond the leaf-tip.
The short straight or curved process from the back of the pitcher behind the lid represents the organic apex of the leaf (A in fig.
Insects are attracted to the mouth of the pitcher by a series of glands, yielding a sweet excretion, which occurs on the stem and also on the leaf from the base of the leaf-stalk to the lid and peristome.
Insects, especially running insects, which have followed the track of honey glands upwards from the stem along the leaf, reach the mouth of the pitcher, and in their efforts to sip the attractive marginal glands fall over into the liquid.
The leaf has a broadly sheathing base succeeded by a short stalk bearing the pitcher, which represents a much enlarged midrib with a winglike lamina.
The surface of the leaf, especially the laminar wing, bears glands which in spring exude large glistening dr„ r, s of nectar.
The lid and mouth of the pitcher are brighter coloured than the rest of the leaf, which FIG.
They are characterized by the absence of that differentiation of the body into root, stem and leaf which is so marked a feature in the higher plants, and by the simplicity of their internal structure.
The sporophyte is the plant which is differentiated into stem, leaf and root, which show a wonderful variety 01 form; the internal structure also shows increased complexity and variety as compared with the other group of vascular plants, the Pteridophyta.
T, Part of vertical section through blade of typical leaf of Phanerogam.
This differentiation is parallel with that between stem and leaf of the higher plants.
Or the thallus may have a leaf-like form, the branches from the central threads which form the midrib growing out mainly in one plane and forming a lamina, extended right and left of the midrib.
This is the first indication of a conducting foliar strand or leaf bundle and forms an approach to leptom, though it is not so specialized as the leptom of the higher Phaeophyceae.
Associated with the conducting parenchyma are frequently found hydroids identical in character with those of the central strand of the stem, and no doubt serving to conduct water to or from the leaf according as the latter is acting as a transpiring or a waterabsorbing organ.
In a few cases the hydrom strand is continued into the cortex of the stem as a leaf-trace bundle (the anatomically demonstrable trace of the leaf in the stem).
The leaf consists of a central midrib, several cells thick, and two wings, one cell thick.
This bundle is continued down into the cortex of the stem as a leaf-trace, and passing very slowly through the sclernchymatous external cortex and the parenchymatous, starchy internal cortex to join the central cylinder.
These three concentric tissue mantles are evidently formed by the conjoined bases of the leaf traces, each of which is composed of the same three tissues.
In the more highly developed series, the mosses, this last division of labor takes the form of the differentiation of special assimilative organs, the leaves, commonly with a midrib containing elongated cells for the ready removal of the products of assimilation; and in the typical forms with a localized absorptive region, a well-developed hydrom in the axis of the plant, as well as similar hydrom strands in the leaf-midribs, are constantly met with.
Alike in root, stem and leaf, we can.
Other hairs consist of a chain of cells; others, again, are branched in various ways; while yet others have the form of a flat plate of cells placed parallel to the leaf surface and inserted on a stalk.
2, A), which has distinct upper and lower faces, are placed mainly or exclusively on the lower side of the leaf, where the water vapour that escapes from them, being lighter than air, cannot pass away from the surface 01 the leaf, but remains in contact with it and thus tends to check further transpiration.
In the leaf-blade this sometimes aopears as a layer of thickened subepidermal cells, tht hypoderm, often also as subepidermal bundles of sclerenchymatou~ fibres, or as similar bundles extending right across the leaf from mu epidermis to the other and thus acting as struts.
In the larger veins of the leaf especially in the midrib, in the petiole, and in the young stem, a1 extremely frequent type of mechanical tissue is collenchyma.
As the stele is traced farther upwards it becomes bulkier, as do the successive leaf-bundles which leave it.
He would perhaps have placed alder branches over the narrow holes in the ice, which were four or five rods apart and an equal distance from the shore, and having fastened the end of the line to a stick to prevent its being pulled through, have passed the slack line over a twig of the alder, a foot or more above the ice, and tied a dry oak leaf to it, which, being pulled down, would show when he had a bite.
Perhaps I shall hear a solitary loon laugh as he dives and plumes himself, or shall see a lonely fisher in his boat, like a floating leaf, beholding his form reflected in the waves, where lately a hundred men securely labored.
The whole tree itself is but one leaf, and rivers are still vaster leaves whose pulp is intervening earth, and towns and cities are the ova of insects in their axils.
Is not the hand a spreading palm leaf with its lobes and veins?
What Champollion will decipher this hieroglyphic for us, that we may turn over a new leaf at last?
Every one has heard the story which has gone the rounds of New England, of a strong and beautiful bug which came out of the dry leaf of an old table of apple-tree wood, which had stood in a farmer's kitchen for sixty years, first in Connecticut, and afterward in Massachusetts--from an egg deposited in the living tree many years earlier still, as appeared by counting the annual layers beyond it; which was heard gnawing out for several weeks, hatched perchance by the heat of an urn.
The concept of something more was as foreign to him as peace, and yet he wanted the image on the leaf to be real.
Disturbed, he folded the leaf and placed it in his pocket.
The electroscope was used in conjunction with an oil lamp or gas flame.
He passed the oscillations to be detected through a fine wire or strip of gold leaf, and over this, but just not touching, suspended a loop of bismuth-antimony wire by a quartz fibre.
In Caulerpa the imitation of a higher plant by the differentiation of fixing, supporting and assimilating organs (root, stem and leaf) from different branches of the single cell is strikingly complete.
In many cases the cells bordering the leaf are produced into teeth, and very frequently they are thick-walled so as to form a supporting rim.
Epiphytic plants and desert plants) have absorptive hairs or scales on the leaf epidermis through which rain and dew can be absorbed.
"Thank you!" cried the Wizard, joyfully, and at once rubbed a leaf upon the soles of Dorothy's shoes and then upon his own.
What mysterious force guided the seedling from the dark earth up to the light, through leaf and stem and bud, to glorious fulfilment in the perfect flower?
Its broad pinnate tropical leaf was pleasant though strange to look on.
It is a fine broad leaf to look on.
Ay, every leaf and twig and stone and cobweb sparkles now at mid-afternoon as when covered with dew in a spring morning.
A'Ran went to his quarters, the thin sheet of what felt like a leaf in his hand.
Mr. Chamberlin initiated me into the mysteries of tree and wild-flower, until with the little ear of love I heard the flow of sap in the oak, and saw the sun glint from leaf to leaf.
After awhile he went nearer, and looking closely at the buds, found that they were folded up, leaf over leaf, as eyelids are folded over sleeping eyes, so that Birdie thought they must be asleep.
He took out a notebook, hurriedly scribbled something in pencil, tore out the leaf, gave it to Kozlovski, stepped quickly to the window, and threw himself into a chair, gazing at those in the room as if asking, "Why do they look at me?"
Frantically, she grabbed at the five-leaf ivy that covered the ground.
Then she threw a leaf of alfalfa hay into her stall.
He raised the leaf again, unable to take his eyes off it.
The forests literally swarm with insects of all kinds, from cicadae to beautiful butterflies, and from stickand leaf-insects to endless.