In botany , a staminode is often a stamen rudimentary, sterile or aborted. This means that does not produce pollen .
The staminodes are often hidden and appear stamens, usually occurs in the whorl of the flower inside.
Sometimes, the staminodes are modified to produce nectar , as in the "plant of sorcery" ( Hamamelis ) .
The staminodes may be a key feature to differentiate between species, especially in the genus of orchids Paphiopedilum .

In botany , Wake is the name given to the employer showing the vascular bundles in the cross section of stem, root or stem of the plant . When not specified, it is assumed that the wake of which is being discussed is that of the stem.
You can observe a kind of wake during the primary growth and a different one for the secondary growth (by cambium ) which is what happens in the stem of most spermatophytes , or may have only primary growth and then keep the same path to throughout the life of the plant, which is what happens in the stem of the monilofitas or ferns at large.

In Botany , called estepicursores plant species living in areas steppe or wastelands that once fructificadas, start the wind, transporting them from one place to another by rolling or dragging, so that their seeds are released and spread. They also receive the title of runner plants or tumbleweed . In Spain, are very characteristic species Salsola kali and Eryngium campestre .
It is one embodiment, if desired, the anemochory , wherein the dispersed component, also called diaspora or disemnulo is all or almost all of the individual, although this definition is interpretable in reverse, ie the element dispersible per se incorporates plant parts that have no germinative function to a greater or lesser extent.

Are more or less extensive regions of the surface of the carpels (female leaves of the flower), often located at the end of a stalk called style. Its surface is generally papillose, where each disc is a cell, and wet, two features that facilitate the adherence of pollen. Once on the stigma, pollen germinates, opening up and letting it grow from a pollen tube through which move the core or cores that perform the fertilization of female gametes. The tube must penetrate through the tissue of the stigma and style.
In the saffron , the part that is used, are the stigmas.

In botany , the style of a flower of angiosperms is the extension of the ovary at the end of which we see the stigma . The style does not contain eggs, which remain restricted to the region called gynoecium ovary.
The style in angiosperms can be solid or hollow. In plants with hollow style transmission tissue (where pollen tubes grow for effecting fertilization) comprises an epidermal cell layer surrounding a quite distinct hollow channel (the so-called channel stylar). Pollen tubes grow from the stigma to the ovary along the surface of the channel, usually through a thin layer of mucilage. In plants that have solid styles, however, epidermal cells are intimately fused, leaving no space between them. Pollen tubes, in this case, grow between the transmission tissue cells (as in the case of Petunia , 1 ) or through the cell walls (as in Gossypium , 2 ). The fabric styles transmission solids includes an intercellular substance containing pectin , comparable to mucilage vessels which are in the channel holes stylar of styles. 3 From the viewpoint of distribution of both types of styles between the different families of angiosperms, solid styles are considered typical of eudicotiledneas and are rare in monocots . 4 5
The Apiaceae , the base of the style is thickened and is called is nectarfera stylopod .

In botany , a stipe is a support structure that can behave like a stem, one being part of the thallus of seaweed sea, or a stalk of true leaves, as in the ferns .
For the fern , the stipe is only the petiole (or stem) from the mat of roots at the beginning of the fabric leaf , or sheet. The continuation of the structure within the film ends after the spine .
This structure is particularly common in brown algae and the Laminariales (kelp).
The stipe is also supported by the carpels as the pistils .
In orchids , the stipe or Caude is the support of the floral parts of polynya : a band viscide not connected to the mass of pollen (pollinia) by viscide (the part of the rostellum or beak viscide).
A stipe is also the foot , support the fruiting bodies of some fungi .

In mycology a stipe refers to the stem or foot that supports the glass of a mushroom . Like all fungal tissues such as the hymenium , the stipe sterile tissue comprises hyphal . In many instances, however, the fertile hymenium extends below the stipe for some distance. The fungi that have called stipes stipitate .
The evolutionary benefit of having a stipe is generally to be an excellent means of dispersal of spores . A large mushroom spores more easily released to the wind currents, or with the passage of animals. Many species of mushrooms not tieen stipes, including: Pezizaceae , Gasteromiceta , Geastraceae , some Polyporaceae , Heterobasidiomycetes , Claviceps , and Ustilaginomycetes .
It is often the case that the features of the stipe is required to make a positive identification of a mushroom. Such distinguishing features include:
texture of the stipe (fibrous tizosa, brittle, tough, firm, etc.).
if it remains a partial veil (as would be an annulus or curtain (mycology) or universal veil ( volva (mycology) ;
if the mushroom stipe many merges at its base;
overall size and shape;
if it extends below ground in a structure similar to a root (a rhizome ).
When collecting mushrooms to eat, you should be able to identify reliably, then at home, so it is critical to keep all these characters intact, must be careful in removing the soil fungus, never cutting it flush with the ground.





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