Sori
are the structures on the underside of fronds in which the spores of ferns are produced.
What is on the underside of a fern frond?
Sporangium
. The reproductive structures on the underside of the frond. Each sporangium is a capsule that contains spores. They are usually aggregated into clusters called sori.
What are the spore bearing structures on a fern frond called?
Sorus, plural sori, in botany, brownish or yellowish cluster of spore-producing structures (
sporangia
) usually located on the lower surface of fern leaves. A sorus may be protected during development by a scale or flap of tissue called an indusium.
What is the function of the sori found on the underside of the fern fronds?
Sori are clusters of sporangia found only in ferns (singular: sorus). These are a product of
sexual reproduction
. The sporangia within the clusters each house several haploid spores. After release from the sporangium, these spores will generate and grow into the gametophytic generation under proper conditions.
What are the structures on the underside of fronds called in which the spores of ferns are produced?
Fern Sori. Sori (singular: sorus) are groups of
sporangia
(singular: sporangium), which contain spores. Sori are usually found on the underside of the blade.
What type of cell is produced in the Sori?
Sori occur on the sporophyte generation, the sporangia within producing
haploid meiospores
. As the sporangia mature, the indusium shrivels so that spore release is unimpeded.
What is a group of ferns called?
| Kingdom: Plantae | Division: Pteridophyta |
|---|
Do Boston ferns have spores?
Although the Boston fern has been around for nearly a century, it has not suffered from ennui as so many indoor plants have. …
It does not produce viable spores
, so the Boston fern must be propagated vegetatively by divisions of the crown or by rooting runners (underground stolons).
What is the fern life cycle?
The life cycle of the fern has two different stages;
sporophyte, which releases spores, and gametophyte, which releases gametes
. Gametophyte plants are haploid, sporophyte plants diploid. This type of life cycle is called alternation of generations.
What are the black droppings under my ferns?
Caterpillars
are one of the most common pests that affect Boston ferns, and they are usually easy to spot since the worms are clearly visible to the naked eye. Caterpillars can also leave noticeable excrement behind on the leaves of Boston ferns, which usually resembles thin black pellets.
What are types of Sporangium?
Sporangia are the specialized spore producing structures found in plants. In Pteridophytes, two types of sporangia are present. The two types of sporangia are
(1) Eusporangium and (2) Leptosporangium
.
Are fern spores male or female?
It is the most intimate look yet at the sex lives of ferns, which spawn not from seeds, but from spores. They mature into full plants known as gametophytes, which
can be male, female, or hermaphroditic
.
What structures can you see in the fern?
The
structure
of a
fern
.
Ferns
have 3 major parts – the rhizome, the fronds and the reproductive
structures
called sporangia. The characteristics of each of these 3 parts of the
fern
plant are used for classification and identification. The rhizome is the stem of the
fern
plant.
What type of spore are produced in the fern plant?
In ferns, the multicellular sporophyte is what is commonly recognized as a fern plant. On the underside of the fronds are sporangia. Within the sporangia are spore producing cells called sporogenous cells. These cells undergo meiosis to form
haploid spores
.
What is the function of Strobilus?
Cone, also called strobilus, in botany, mass of scales or bracts, usually ovate in shape,
containing the reproductive organs of certain nonflowering plants
. The cone, a distinguishing feature of pines and other conifers, is also found on all gymnosperms, on some club mosses, and on horsetails.
What protects the spores of fern from too much heat?
In many species of ferns, the sporangium is found on the underside of the leaves, or fronds, of the adult fern. … In many species of ferns these sori are protected by
an indusium
which is a thin membrane that protects the underdeveloped spores and sori.
