What spores does Lycopodium produce?
Lycopodium is a sporophytic plant and reproduces sexually. The plants are homosporous i.e., produces only one type of spores (without differentiation of mega- and microspores). These spores are produced in sporangia which, in turn, are produced on fertile leaves known as sporophylls.
Do Lycopodium have spores?
Lycopodium powder is a yellow-tan dust-like powder, consisting of the dry spores of clubmoss plants, or various fern relatives. When it is mixed with air, the spores are highly flammable and are used to create dust explosions as theatrical special effects.
Does Lycopodium belong to pteridophyta?
In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), Lycopodium is one of nine genera in the subfamily Lycopodioideae, and has from nine to 15 species. In other classifications, the genus is equivalent to the whole of the subfamily, since it includes all of the other genera.
Where are Lycopodium spores produced?
sporangium
Strobilus bears spirally arranged sporophylls with sporangium which produces numerous spores. The spores come out from the sporangium and germinate in the soil to form a small top shaped prothallus. This is the gametophytic phase of the life cycle.
Which type of plant is Lycopodium?
| Lycopodium clavatum | |
|---|---|
| Family: | Lycopodiaceae |
| Genus: | Lycopodium |
| Species: | L. clavatum |
| Binomial name |
What is Lycopodium made of?
Lycopodium powder is a fine yellow powder derived from the spores of Lycopodium clavatum (stag’s horn club moss, running ground pine). When a lighted match is dropped into a pile of this powder, it does not burn.
How do you grow Lycopodium spores?
Because of its high moisture and humidity requirements, lycopodium is a difficult plant to maintain in the home and is best grown in pots. Place the lycopodium in a bright area. Water the lycopodium to keep the soil wet. Keep an eye on the soil during particularly warm, dry weather.
What is the size of Lycopodium spore?
Lycopodium spore is oval-triangular to nearly circular and trilete. Its arms of laesura is straight, the entire inner margin 15–18 µm long, extending to spore margin.
Are Lycopodium bryophytes?
In this article, we will consider the clubmosses or “lycopodiums.” The common name “clubmoss” is based on the premise that at first glance these plants resemble mosses (mosses are bryophytes and thus, non-vascular plants), and because they often have club-like structures that produce spores.
Who introduced Lycopodium spore method?
Answer is : A) Lycopodium spore method was developed by Wallis.
Where can Lycopodium be found?
Homeopathic Remedies Lycopodium clavatum (Fig. 11.4) is commonly known as club moss, clubfoot moss, foxtail, ground pine, sulfer, and wolf’s claw. It is a pteridophyte abundantly found in tropical, subtropical and in many European countries.
What is the size of Lycopodium spores?
How lycopodium spore method is performed?
Lycopodium spore method was performed on ingredients of Shatavaryadi churna, an ayurvedic formulation used as immunomodulator, galactagogue, aphrodisiac and rejuvenator. Estimation of diagnostic characters of each ingredient of Shatavaryadi churna individually was carried out.
Is Lycopodium a fungus?
In the present study, we characterized culturable endophytic fungi in two closely related Lycopodium species (L. annotinum and L. clavatum) from pine, beech, oak and spruce forests across Poland. More than 400 strains were isolated but only 18 Ascomycete species were identified.
What is the significance of lycopodium spore method?
The method is simple, precise, sensitive, and accurate, and can be used for routine standardisation of raw materials of herbal drugs. This method gives the ratio of individual ingredients in the powdered drug so that any adulteration of genuine drug with its adulterant can be found out.
Why is lycopodium spore used for starch grain size determination?
They have uniform moisture content, hence the weight remains the same. This is the reason, why these spores are used to evaluate powdered drugs by comparison. The spores are also resistant to pressure.
What is Lycopodium used for?
In homeopathy, it is used in the treatment of aneurisms, constipation, fevers, and chronic lung and bronchial disorders. It also reduces gastric inflammation, simplifies digestion, and helps in treatments of chronic kidney disorders.
What is lycopodium used for?
Is Lycopodium a powder?
Lycopodium is a fine powder, the seed, or more correctly the spores, of a club moss. These are members of a curious family of cryptogamous plants that,’ from the demand in commerce for the spores, have a certain importance.
What is lycopodium spore method in pharmacognosy?
What is Lycopodium Spore Method. Validated modified Lycopodium spore method is a simple and rapid quantification of herbal powdered drugs especially when chemical and physical evaluations of crude drugs are inapplicable.
Who introduced lycopodium spore method?
What is Lycopodium spore method in pharmacognosy?
Is Lycopodium toxic?
Abstract. Background: Herbs from Lycopodium are generally reputed to be nontoxic and are occasionally used for preparing a salubrious tea.
How Lycopodium spore method is performed?
What is the shape of the spores of Lycopodium?
The spores of Lycopodium are minute ranging in diameter from 0.03 to 0.05 mm. Soon after liberation from the sporangium they are tetrahedral in shape. The spore wall is two layered. The architecture of the outer layer is highly variable. Based on this, Lustner (1898) classified the spores into three types:
What is the life cycle of Pteridophyta?
Pteridophytas and other plants have a life cycle called alternation of generations (also known as metagenesis ). Following is the classification of the Pteridophyta: These are the earliest vascular plants to be discovered. The majority of them are now extinct. Psilotum and Tmesipteris are the only two surviving species left.
Is Lycopodium homosporous or heterosporic?
Lycopodium is homosporous, therefore, spore germinates exosporically to produce gametophytic prothallus, which bears both male and female sex organs (i. e., monoecious and homothalic). The germination of the spores may be immediate in some species (e. g., Lycopodium cernuum, L. inundatum) or after a delay of several years.
What is the phylogeny of Lycopodium?
Phylogeny. Lycopodium is popularly called the club moss. Among the genera of the family it enjoys widest distribution though its preference is to tropical and sub-tropical forests. It is not uncommon to find Lycopodium growing in arctic and temperate regions. The genus consists of about 180 species of which 33 are found in India.