Observaciones de bette1

EXPLORATION OF THE AMELANCHIER ALNIFOLIA FROM THE ROSACEA FAMILY

Amelanchier alnifolia is a plant that is in the Rosacea family commonly named as the alder-leaved serviceberry. Also called a Juneberry since its growing season is near the end of June and early July. It is considered a showy shrub because of its white lilac looking flowers that are in numerous amounts on the shrub. The shrub also grows fruits similar to blueberries.
Members of the Rosacea plant including the Amelanchier alnifolia are woody plants. The shrub grows numerous amounts of white flowers that can range in colors of yellow, pink, orange, red or lavender. These flowers can range in size, shape and color depending on the habitat conditions. The flowers are cup-shaped with five petals. They are also randomly placed on the stems and are radially symmetric. The center of the flower is green and contains stamens and carpels. There are normally only four or five sepals for each flower. Each flower contains a hypanthium; the area where the calyx, stamens and corolla are fused together to form a cup shape that surrounds the stem. The bark on the tree is smooth and grayish in color. The leaves on the shrub are light green on the surface and pale on the bottom. The leaves are fan-shaped with toothed margins and grow alternately on the stem. The Amelanchier alnifolia is a perennial plant.
One of the other plants I collected that was similar to the Amelanchier alnifolia is the Crataegus douglasii. Like the Amelanchier alnifolia it is considered a shrub that can grow to be 20 feet to 30 feet tall. Both of the plants have the nearly identical flowers and fan-shaped leaves that have toothed margins. The shrubs are both gray in bark color when mature. Both the plants produce some type of fruit. The difference between the two shrubs is that the Crataegus douglasii has thorns on the stem to protect itself from predators. The leaves on the douglasii are darker green unlike the alnifolia leaves.
Amelanchier alnifolia reproduce by sexual reproduction. A pollen grain from one type of plant lands on the ovary and pollination occurs. A pollen tube forms and grows into the ovule. Mitosis occurs forming a sperm that will travel down the pollen tube to fertilize an egg. An embryo and endosperm are made which will undergo photosynthesis to develop a seed sprout. The seed will then grow to become a fruit.
Amelanchier alnifolia grows on the North American continent in the west and central parts of the Unites States. It is found on a variety of landscapes ranging from a dry slope, moist hillsides, and wide prairies. The shrub can also be found growing close to other wild roses or shrubby plants. In different types of condition the Amelanchier alnofolia will adjust as needed to grow. With the correct conditions the deciduous shrub can grow to be a large tree with a height of 35 feet and width of 20 feet. I found my collection at Wenaha River Trail in Troy, Oregon. The shrub was on a hillside surrounded by grass and other shrubs. The soil contained rocks and contained a sufficient amount of water for the plant to grow. It had access to direct sunlight and rain.
Some adaptations that Rosacea plants have made are that they have developed thorns to protect their fruits from predators. The shrubs have also adjusted to growing in different types of habitats. The flowers have changed from white into yellow and blue flowers to attract bees to pollinate it. They also have strong scents to attract animals that will be able to pollinate it.