Non-vascular
... lakeshores, marshes • Notes: extremely aggressive invasive species, wiping out many other native riparian species, and is hard to control. • Relatives: waterwillow ...
... lakeshores, marshes • Notes: extremely aggressive invasive species, wiping out many other native riparian species, and is hard to control. • Relatives: waterwillow ...
Forest Seed Pest
... modified for piercing and sponging. The larva is legless and its head retracted into the thorax. Important families with members causing cone destruction in North American conifers are Cecidomyiidae, Anthomyiidae and Lonchaeidae (Hedlin et al. 1981). -Hymenoptera (Wasps, sawflies and seed chalcids) ...
... modified for piercing and sponging. The larva is legless and its head retracted into the thorax. Important families with members causing cone destruction in North American conifers are Cecidomyiidae, Anthomyiidae and Lonchaeidae (Hedlin et al. 1981). -Hymenoptera (Wasps, sawflies and seed chalcids) ...
Chapter 30- Plant Diversity 2- Evolution of Seed
... food. T~is enables a seed to remain dormant for days, months, or even years after being released from the parent plant. (Most spores have much shorter lifetimes.) Under favorable conditions, the seed can then germinate, with its stored food providing critical support for growth as the sporophyte emb ...
... food. T~is enables a seed to remain dormant for days, months, or even years after being released from the parent plant. (Most spores have much shorter lifetimes.) Under favorable conditions, the seed can then germinate, with its stored food providing critical support for growth as the sporophyte emb ...
Seeds – Part 1
... ABA, which accumulates during seed development. Dry seeds can be stored a very long time, especially if kept very, very cold. ...
... ABA, which accumulates during seed development. Dry seeds can be stored a very long time, especially if kept very, very cold. ...
Sexual Reproduction in Flowering Plants
... a) Epidermis: The epidermis is one called thick, the cells present between the pollen sacs are thin walled and their region is called as stomium which is useful for the dehiscence of pollen sacs. b) Endothecium : It is present below the epidermis and expands radically with fibrous thickenings, at ma ...
... a) Epidermis: The epidermis is one called thick, the cells present between the pollen sacs are thin walled and their region is called as stomium which is useful for the dehiscence of pollen sacs. b) Endothecium : It is present below the epidermis and expands radically with fibrous thickenings, at ma ...
22-4 Seed Plants
... Reproduction Free From Water Seed plants have a life cycle that alternates between a gametophyte stage and a sporophyte ...
... Reproduction Free From Water Seed plants have a life cycle that alternates between a gametophyte stage and a sporophyte ...
Chapter-4 Plant Kingdom
... 14. The male or female cones or strobili may be borne on the same tree (Pinus) or on different trees (Cycas). 15. The nucellus is protected by envelopes and the composite structure is called an ovule. 16. One of the megaspores enclosed within the megasporangium (nucellus) develops into a multicellul ...
... 14. The male or female cones or strobili may be borne on the same tree (Pinus) or on different trees (Cycas). 15. The nucellus is protected by envelopes and the composite structure is called an ovule. 16. One of the megaspores enclosed within the megasporangium (nucellus) develops into a multicellul ...
Plant of the week - Cycas sphaerica
... Leaf :- Cycas shows habitual heterophylly condition with morphologically two different types of leaves i.e. scale leaves & foliage leaves. ...
... Leaf :- Cycas shows habitual heterophylly condition with morphologically two different types of leaves i.e. scale leaves & foliage leaves. ...
Think Like a Scientist
... READING FOCUS: How do conifers reproduce? Many trees shed their leaves in the fall as part of their life cycles. But other trees have leaves (or needles) all year long. Such trees are called evergreens because they're always green. Actually, evergreens do shed their leaves, but most grow new ones at ...
... READING FOCUS: How do conifers reproduce? Many trees shed their leaves in the fall as part of their life cycles. But other trees have leaves (or needles) all year long. Such trees are called evergreens because they're always green. Actually, evergreens do shed their leaves, but most grow new ones at ...
flower
... •Wind-pollinated plants do not depend on insects so that they do not spend energy for nectar production, and are colourless and odourless. •Anemophilous pollination is less efficient and succeeds only when a high number of individuals of a population stay close each other (no farther than 100 m). ...
... •Wind-pollinated plants do not depend on insects so that they do not spend energy for nectar production, and are colourless and odourless. •Anemophilous pollination is less efficient and succeeds only when a high number of individuals of a population stay close each other (no farther than 100 m). ...
20.2 Classification of Plants Angiosperms
... • Angiosperms have seeds enclosed in some type of fruit. – A flower is the reproductive structure of angiosperms. – A fruit is a mature ovary of a flower. ...
... • Angiosperms have seeds enclosed in some type of fruit. – A flower is the reproductive structure of angiosperms. – A fruit is a mature ovary of a flower. ...
20.2 Classification of Plants
... • Angiosperms have seeds enclosed in some type of fruit. – A flower is the reproductive structure of angiosperms. – A fruit is a mature ovary of a flower. ...
... • Angiosperms have seeds enclosed in some type of fruit. – A flower is the reproductive structure of angiosperms. – A fruit is a mature ovary of a flower. ...
Handout - Minnesota Council of Nonprofits
... change color and drop its leaves in autumn. • Grows best in moist conditions but has been shown to be very adaptable and is often planted in urban areas for shade. • DID YOU KNOW: In Norse mythology, the first man was said to be formed from an ash tree. ...
... change color and drop its leaves in autumn. • Grows best in moist conditions but has been shown to be very adaptable and is often planted in urban areas for shade. • DID YOU KNOW: In Norse mythology, the first man was said to be formed from an ash tree. ...
introduction
... When identifying flower parts, it is best to start on the outside of the flower and work towards the middle: Sepals: a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flowe ...
... When identifying flower parts, it is best to start on the outside of the flower and work towards the middle: Sepals: a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flowe ...
Lab 2 Packet
... When identifying flower parts, it is best to start on the outside of the flower and work towards the middle: Sepals: a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flowe ...
... When identifying flower parts, it is best to start on the outside of the flower and work towards the middle: Sepals: a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flowe ...
Biology 2 Lab Packet For Practical 2
... When identifying flower parts, it is best to start on the outside of the flower and work towards the middle: Sepals: a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flowe ...
... When identifying flower parts, it is best to start on the outside of the flower and work towards the middle: Sepals: a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flowe ...
Agrostemin
... Several pollen seeds arrive to pistil stigma Germination of pollen is effected by the following factors: a) biotic and b) abiotic For example: It is due to extremely high temperatures and low relative air humidity. or. on the other side. low temperatures and high air humidity that pollen quickly los ...
... Several pollen seeds arrive to pistil stigma Germination of pollen is effected by the following factors: a) biotic and b) abiotic For example: It is due to extremely high temperatures and low relative air humidity. or. on the other side. low temperatures and high air humidity that pollen quickly los ...
Angiosperms - OpenStax CNX
... fruits have burs and hooks to cling to fur and hitch rides on animals. ...
... fruits have burs and hooks to cling to fur and hitch rides on animals. ...
Pollination & Fertilization
... Water softens the seed coat, and the hypocotyl grows out. Mitotic division of the cells making up the embryo’s meristematic tissue provide new cells for growth. The root grows downward and the hypocotyl forms an arch that pushes up through the soil. Above ground, the hypocotyl straightens and lifts ...
... Water softens the seed coat, and the hypocotyl grows out. Mitotic division of the cells making up the embryo’s meristematic tissue provide new cells for growth. The root grows downward and the hypocotyl forms an arch that pushes up through the soil. Above ground, the hypocotyl straightens and lifts ...
Chapter 19 PowerPoint
... More recently, the origin of flowers and fruits introduced new reproductive adaptations. Angiosperms are flowering plants. ...
... More recently, the origin of flowers and fruits introduced new reproductive adaptations. Angiosperms are flowering plants. ...
Garden practice - coppicing and pollarding
... cut back to 5–10cm (2–4in) if planted in early spring, but if you leave them unpruned in their first season they will establish a good root system. The best colour is on new growth, so shorten stems to strong buds within 5–8cm (2–3in) of the ground the following spring, before buds open. Use sharp s ...
... cut back to 5–10cm (2–4in) if planted in early spring, but if you leave them unpruned in their first season they will establish a good root system. The best colour is on new growth, so shorten stems to strong buds within 5–8cm (2–3in) of the ground the following spring, before buds open. Use sharp s ...
Unit 16.3: Variation in Plant Life Cycles
... sexual reproduction with gametes and asexual reproduction with spores. • In nonvascular plants, the gametophyte generation is dominant. The tiny sporophyte grows on the gametophyte plant. • In vascular plants, the sporophyte generation is dominant. In seedless vascular plants such as ferns, the spor ...
... sexual reproduction with gametes and asexual reproduction with spores. • In nonvascular plants, the gametophyte generation is dominant. The tiny sporophyte grows on the gametophyte plant. • In vascular plants, the sporophyte generation is dominant. In seedless vascular plants such as ferns, the spor ...
PBIO 3080/5080 – S Lignophytes are a clade of vascular plants that
... The Class Progymnospermopsida was proposed by Charles B. Beck (1960) to include “plants having gymnospermic secondary wood and pteridophytic reproduction” (Beck 1962). There are three orders of progymnosperms: Archaeopteridales, Aneurophytales and Protopityales. Archaeopteris As illustrated in Fig. ...
... The Class Progymnospermopsida was proposed by Charles B. Beck (1960) to include “plants having gymnospermic secondary wood and pteridophytic reproduction” (Beck 1962). There are three orders of progymnosperms: Archaeopteridales, Aneurophytales and Protopityales. Archaeopteris As illustrated in Fig. ...
Red Maple
... Wildlife Uses: Even though the leaves, twigs, bark, and seeds produce a cyanogenic glycoside that poison livestock when the leaves are wilted, white-tailed deer browse the seedlings and saplings without harm. The fruits are important food for species of passerine birds, game birds, and mammals, incl ...
... Wildlife Uses: Even though the leaves, twigs, bark, and seeds produce a cyanogenic glycoside that poison livestock when the leaves are wilted, white-tailed deer browse the seedlings and saplings without harm. The fruits are important food for species of passerine birds, game birds, and mammals, incl ...
Pinophyta
The conifers, division Pinophyta, also known as division Coniferophyta or Coniferae, are one of 12 extant division-level taxa within the Kingdom Plantae (Viridiplantae) and 10 within the extant land plants. Pinophytes are gymnosperms, cone-bearing seed plants with vascular tissue. All extant conifers are woody plants with secondary growth, the great majority being trees with just a few being shrubs. Typical examples of conifers include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews. The division contains approximately eight families, 68 genera, and 630 living species.Although the total number of species is relatively small, conifers are of immense ecological importance. They are the dominant plants over huge areas of land, most notably the boreal forests of the northern hemisphere, but also in similar cool climates in mountains further south. Boreal conifers have many wintertime adaptations. The narrow conical shape of northern conifers, and their downward-drooping limbs, help them shed snow. Many of them seasonally alter their biochemistry to make them more resistant to freezing, called ""hardening"". While tropical rainforests have more biodiversity and turnover, the immense conifer forests of the world represent the largest terrestrial carbon sink, i.e. where carbon from atmospheric CO2 is bound as organic compounds.They are also of great economic value, primarily for timber and paper production; the wood of conifers is known as softwood.Conifer is a Latin word, a compound of conus (cone) and ferre (to bear), meaning ""the one that bears (a) cone(s)"".