Are cypress leaves parallel veins, or reticular, forked veins?

Cypress trees belong to gymnosperms with scaly or short-prickly leaves. Angiosperm.

The leaf veins are divided into reticular veins and parallel veins.

Cypress: Canopy of young trees.

conical or ovate, broadly rounded in old age; The bark is dark grayish-brown, longitudinally fissured, peeled off in thin strips; The twigs of the scales are thin, green, straight or obliquely upward, flattened, arranged in a plane, green on both sides, the biennial branches are greenish-brown, slightly flattened, gradually turning reddish-brown, and cylindrical; The buds are extremely small, inconspicuous, and the same color as the twigs. The leaves are scaly, 1 3 mm long, slightly blunt at the apex, and the exposed part of the branch** leaf is triangular.

There are strip-like glandular grooves on the dorsal surface, the lobes on both sides are boat-shaped, the apex is slightly incurved, the dorsal part has a blunt ridge, and there are glandular points below the pointed tip.

Both male and female cones are born at the tips of twigs, and the male cones are yellowish-brown, ovate, about 2 mm long; The female flowers are nearly spherical, about 2 mm in diameter, reddish-brown, and powdery. The cones are nearly ovate, usually 4 pairs of scales, 1 2 cm long, nearly fleshy before maturity, blue-green.

Powdery, woody, dehisced, reddish-brown, the top pair of scales narrowly elongated, nearly columnar, with upward pointed tips at the apex, the middle two pairs of scales ovate, oval to oblong, with a small curved tip below the apex, and a small pair at the lower part, about 2 mm long, sparsely degenerate but not significant.

Seeds ovate, slightly pointed at the apex, rounded at the base, grayish-brown to purplish-brown, slightly 3-shuttled, wingless or very narrow. The flowering period is April, and the fruit ripening period is October. [6]

The leaves of the cypress tree should be scaly. There doesn't seem to be any vein.

Cypress is a gymnosperm, we generally do not define its leaf veins, we are to classify the leaf veins of angiosperms, like Phaseolus vulgaris is a reticular vein, which belongs to dicots, and corn is a parallel vein, which belongs to monocots.

Leaf veins can be divided into forked veins, reticular veins.

Forked veins: When leaf veins grow from the base of the leaves, they all show binomial branching, called forked veins. This is a more primitive type that is rare in seed plants, such as ginkgo, but more common in ferns.

Reticular veins: It has distinct main veins that bifurcate step by step, forming a small reticular vein called a reticular vein. There are distinct main veins, lateral veins, autonomous veins on both sides, arranged in a pinnate pattern, and several leaf margins, called pinnate reticular veins.

Both. Single leaf—only one leaf grows on each petiole. Compound leaves—Each petiole has many leaflets.

Leaves can come in a variety of different shapes, sizes, colors, and textures. The leaves can be clustered together or scattered all over the place. The edges of the leaves can be smooth or jagged.

A complete leaf consists of the following three parts: the leaves are flattened and grow crosswise, which favors receiving more sunlight. Petiole – supports the leaf and connects the leaf to the stem. Leaf support – protects young leaves.

The veins of varying thickness that cover the leaves are called leaf veins. There are two types of leaf veins: reticular veinsThe veins are interlaced with each other to form a reticulum.

The leaves of most dicots have reticular veins. Parallel veins, leaf veins, and veins are not interlaced with each other, and are generally distributed in parallel. Most monocots have parallel veins in their leaves.

There are three main types of leaf veins: reticular veins, parallel veins, and forked veins. The reticular veins are divided into pinnate reticulum veins and palmate reticulum veins, and the parallel veins are divided into straight outgoing veins, arc veins, ejective veins, and lateral outgoing veins.

There are leaf veins on the leaves, and there are three common ones: (reticular) veins, (parallel) veins and forked veins.

The pattern of veins distributed on the leaf is called venation, which can be divided into three categories (Fig.).

Dichotomy vein

After the leaf veins are born from the leaf base, they all branch in a bifurcated shape, which is called a bifurcated vein. This vein order is a more primitive type and is rarely seen in seed plants, such as ginkgo, but is more common in ferns.

Netted venation

It has obvious main veins, and after gradual branching, it forms most of the staggered distribution of fine veins, which are connected by the veins to form a network, which is called reticular veins. Among them, there is a distinct main vein, and the lateral veins emanate from both sides of the autonomous vein, arranged in a feather-like manner, and almost reach the leaf margin, called pinnate reticulated veins, such as privet, weeping willow. If the base of the main vein produces a plurality of lateral veins of similar thickness to the main vein at the same time, and then sends out most of the lateral veins from both sides of them, and produces a very large number of fine veins from the lateral veins, and interweaves them into a network, it is called a palmate reticulum, such as castor, pumpkin, etc.

Some only produce a pair of side veins from both sides of the base of the main vein, and this pair of side veins is obviously more developed than other side veins, which is called three out veins, such as mountain hemp rod, Pu tree, etc.; When a pair of lateral veins in the three veins are not born from the base of the leaf, but are born at a distance from the base, it is called the three veins from the base, such as camphor. The veins of dicots are mostly reticular. A small number of monocots also have reticular veins, such as Aracea and Dioscore, but the leaf veins and veins are mostly interconnected and lack free veins.

This can be distinguished from the reticular vein order of dicots.

Parallel vein

It is mainly the vein sequence peculiar to monocots. The midrib and lateral veins and thin veins of the leaf are arranged in parallel, or the lateral veins are nearly perpendicular to the midvein, and the lateral veins are nearly parallel to each other, all belong to parallel veins. Among them, all the leaf veins are emanating from the leaf base, parallel to each other to the leaf tip, and the thin veins are also parallel or nearly parallel to each other, which is called straight out parallel veins, such as wheat winter, sedge, etc.; All leaf veins are born from the base of the leaf, the distance between each other gradually increases, slightly arc-shaped, and finally the distance decreases, and converges at the tip of the leaf, called arc-shaped parallel veins, such as purple calyx, hosta, etc.; All leaf veins arise from the base of the leaf and extend in a radiant state to all sides, which is called ejective parallel veins, such as palm; The lateral veins are perpendicular or nearly perpendicular to the main vein, and the lateral veins are parallel to each other and reach the leaf margin, which is called the transverse parallel vein, such as plantain, canna, etc.

Take the leaves to face the sun and look at it, most of the generally conical leaves are parallel veins, and maple leaves and the like are reticular veins.

Parallel veins are the leaf veins are nearly parallel, the main veins and the side veins are connected by thin veins, which are the characteristics of the leaf veins of monocots, such as wheat, rice, etc., the reticular veins have obvious main veins and lateral veins, and the main veins branch to form the lateral veins, and the lateral veins form multi-level branches, such as maple leaves.

Almost all monocots are parallel-veined, but there are exceptions, such as Araceae and Liliaceae, some plants are reticulated, but they are generally not examined. There are also plants with parallel veins that are dicotyledons, such as some plants in the Mimosa family, but they are exceptional.

Plants with parallel veins: rice, wheat, lilies, bamboo, orchids, orchids and other plants with reticulated veins: almost except ferns (forked veins) and monocots (parallel veins), the others are all ah! All the plants you can imagine.