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The large fern, rise to the hight of 3 or 4 feet, the Stem is a Common footstalk or rib which proceeds imediately from the radix which is Somewhat flat on two Sides about the Size of a man's arm and covered with innumerable black coarse capillary radicles which issue from every part of its surface; one of those roots or a collected bead of them will Send forth from 20 to 40 of those Common footstalks all of which decline or bend outwards from the Common center. those ribs are cylindric and marked longitudinally their whole length with a groove or channel on their upper Side. on either Side of this groove a little below it's edge, the leafets are inserted, being partly petiolate for about 2/3ds of the length of the middle rib, commenceing at the bottom and from thence to the extremity Sessile. the rib is termonated by a Single undevided lanceolate gagged leafet. the leafets are lanceolate, from 2 to 4 inches in length gagged and have a Small accute angular projection and obliquely cut at the base on either Side of the rib of the leafet. upper Surface is Smooth and of a deep Green, the under disk of a pale Green and covered with a brown Substance of a woolly appearance particalarly near the center fiber or rib these leafets are alternately pointed they are in number from 110 to 140; shortest at the two extremities of the common footstalk and longest in the center, gradually lengthing and diminishing as they Suckceed each other
Growing in favourable situations to fully a yard in height, this distinct evergreen shrub, which is fairly common in cultivation, is particularly valuable, as it thrives well under the shade and drip of trees. It is a rambling plant, with ovate-cordate, almost sessile leaves, and bears tiny white flowers that are succeeded by purplish fruit.
She means to give us time to inhale the fragrance of some of the hepaticas, and to learn that other hepaticas of the same species have no fragrance at all; that there is a variety of delicate colors, white, pink, purple, lavender, and blue; that the colored parts, which look like petals are really sepals; that they usually number six, but may be as many as twelve; that there are three small sessile leaves forming an involucre directly under the flower; that if we search we shall find some with four, more rare than four-leaved clovers; that the plant which was fragrant last year will also be fragrant this year; that the furry stems are slightly pungent, enough to give spice to a sandwich; these preliminary observations fit us for more intricate problems later on.
They are arranged in the form of a little circular cone or pyramid which is large at the bottom and pointed at the top. White; 2. Crimson; 3. There are other differences. Immediately below the flower of the Red Clover is a pair of leaves; the blossom is said to be "sessile" or seated on these leaves. Other leaves, and also other blossoms, grow on the same stem. Now look at the White Clover.
On, down from the lower lakes to the village weirs, the brown and golden disks of helenum have beauty as a sufficient excuse for being. The plants anchor out on tiny capes, or mid-stream islets, with the nearly sessile radicle leaves submerged.
The juvenile characters manifestly lie dormant during the adult period, and that this is so, may be shown artificially by cutting off the whole crown of the tree, when the stem responds by producing numerous new branches, which assume the shape proper to the young trees, bearing sessile and opposite leaves. It seems quite unnecessary to give further instances. They are familiar to every student.
The acquisition of food requires no effort, and the plant makes none. It has therefore always remained stationary and almost insensible. Not taking the first step it has never taken any of the higher ones. But solid food would not, as a rule, come to the animal though stationary and sessile animals are not uncommon in the water he must go in search of it.
Here it is doing little harm, and we need only think of the clusters of fragrant flowers. Each cluster grows at the end of a stalk. Some are pale pink, others golden yellow, while some are almost white. After the blossom comes the bright red berry which contains the seed. The leaves grow in pairs. Those low down on the stem have leaf stalks, but the upper ones are sessile on the stem.
We have studied leaves as cotyledons, bud-scales, etc., but when we speak of leaves, we do not think of these adapted forms, but of the green foliage of the plant. Forms and Structure. Provide the pupils with a number of green leaves, illustrating simple and compound, pinnate and palmate, sessile and petioled leaves. They must first decide the question, What are the parts of a leaf?
On, down from the lower lakes to the village weirs, the brown and golden disks of helenum have beauty as a sufficient excuse for being. The plants anchor out on tiny capes, or mid-stream islets, with the nearly sessile radicle leaves submerged.
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