Full answer: Selaginella and Sage are two examples of heterosporous ferns. These ferns are composed of two types of spores, macrospores that germinate to produce female gametophytes and microspores that germinate to produce male gametes.

Which is Heterosporus Pteridophyte Selaginella?

Representative of heterosporum ferns The highest developmental stage of the second or intermediate series of plants. The term heterospore applies to plants in which there are two types of asexual spores, large and small, called macrospores and microspores.

Which one is a homosporous fern?

Selaginella and Sage produce two types of spores, macro (large) and micro (micro) spores, known as heterosporous ferns. Stone Pine and Equisetum It is a homosporous fern. i.e. they produce only one type of spore.

Is Equisetum a heterosporidium fern?

living species heterosporidium fern It is a small perennial herb, usually no more than a few inches tall, that is divided into six genera, namely, Mangosteen, Salvia, Massilia, Trichococcus, Isoetes, and Selaginella (Schaffner, 1905). …Examples – Stone Pine, Selaginella, Equisetum.

What is an example of xenogeneity?

Heterosporosis is a phenomenon in which two types of sporulation are formed, namely smaller microspores and larger megaspores. …an example of heterospores is Selaginella, Sage and Massilia etc..

What is the difference between homosporous and heterosporous plant life cycles?

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What does xenobiotic fern with two examples mean?

Full answer: Selaginella and Sage are two examples of heterosporous ferns. These ferns are composed of two types of spores, macrospores that germinate to produce female gametophytes and microspores that germinate to produce male gametes.

Why are ferns called Cryptococcus?

Ferns are vascular plants (with xylem and phloem) that disperse spores.because Ferns neither bloom nor seedthey are sometimes called « cryptogams », which means that their reproduction is hidden.

Does Azolla show Heterospory?

Option D: Salvia, Selaginella, Manjianghong and Shisong – Manjianghong and Selaginella are xenogeneic, but others are not.

What is the life cycle of a fern?

The life cycle of a fern is an ongoing reproductive process The sporophyte (sexual) stage is dominated by alternating generations. The spores of ferns are ejected into the air, and the spores develop into heart-shaped haploid gametophytes that contain both male and female sex organs.

What does H * * * * * * * * * * mean, xenosporum ferns give two examples?

Homosporous ferns: Plants that produce only one type of spore are called homosporous ferns. For example: psilotum. ⭐.HETEROSPOROUS FERN: Plants that produce two spores on the same plant are these types. For example: Salvia.

What is Homosporous for example?

example is club mass and nootropics. Examples are Sage and Selaginella. Vascular plant spores are always haploid. Vascular plants are either homosporous or heterosporous. Homosporous plants produce spores of the same size and type.

What is the difference between heterospores and homospores?

The key difference between homosporous ferns and heterosporous ferns is that Homosporous ferns produce only one type of sporethey are small in size, whereas heterosporous ferns produce two types of spores; small microspores and large megaspores.

Is Pinus a heterosporous plant?

Pine is a monoecious gymnosperm with male and female cones on the same plant, which are produced on separate cones. … they are heterosporous plantswhich means they produce two different types of spores.

Is Masseria a compatriot?

they are fellow But there are also a few plants that are heterosporous, such as Isoetes, Selaginella, Marsilea, Regnellidium, Pilularia, Azolla and Salvinia. In Selaginella, the sporangia are related to the sporophylls that make up the strobilus. …In ferns, sporangia grow on the sporophylls.

Which is not a xenobiotic fern?

Ferns. Dryopteris produces only one type of spore (homospore).

Does Manjianghong produce oxygen?

It can be interpreted as Manjianghong, which is an aquatic plant Oxygen production through photosynthesis. Therefore, the amount of dissolved oxygen increases. Due to the Manjianghong treatment, the BOD of the wastewater has also been improved.

Can humans eat Manjianghong?

Manjianghong has been suggested as a food for human consumption, however, No long-term studies have been conducted on the safety of Manjianghong for human consumption.

Will Manjianghong absorb ammonia?

Azolla removes ammonia more efficiently than Lemna (Table 4). In addition, highly significant nitrate removal (78%) was obtained with Azolla, while Lemna showed different removal rates of 50% in the treated batch (pr 0.05) and 100% in the untreated batch ( p 5 0.001), depending on the ion concentration.

What are the three types of ferns?

The three different types of ferns include:

• Ferns.
• ponytail.
• Stone pine or stone pine.

What are the characteristics of ferns?

Salient features of ferns:

• Ferns were the first true land plants.
• They are nucleated Cryptococcus vascularis. …
• Lifecycle is a heterodual tactile type.
• The sporophyte is the main plant body while the gametophyte is a small and simple prothallus.
• The sporophyte has true roots, stems and leaves.

Who is the father of ferns?

More than 20 years ago, Edward Krakowski (1979), arguably the father of modern fern genetics research, published a summary and synthesis of the unique characteristics of homosporous ferns.

Which of the following is an example of a xenobiotic fern?

Selaginella, Sage, Massilia, and Mangosteen It is a heterospore fern.