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Sclereids : often are shorter than the fibers have no sharp ends, take various forms and often derived cell parenchyma esclerificadas. They are found in various plant organs: leaves, fruits Tarik Cohen Hat , seeds, etc.. They are classified according to their shape:


Sclereids or stone cells : more or less isodiametric, thick-walled, small lumen simple and branched pits.


Astroesclereidas : star-shaped, common leaf Camellia .


Macrosclereid .


Osteoesclereidas : bone shaped.


Filiform sclereids : common olive leaf ( Olea europaea ).


A rare species is an organism that is very rare or scarce. This designation can be applied to taxa of plants and animals Anthony Miller Hat , and may be different from the term " endangered species "or" endangered . "


The designation of a kind rarely can be made ??by an official organization as a national, state or province. However, the term is most commonly used without reference to specific criteria. The IUCN designates not normally, but can use in their scientific discussions. 1


The concept of rarity is set to have a very small number of individuals, usually below 10 Jordan Howard Hat ,000, but the concept is also influenced by having a very narrow geographic distribution of endemism and or fragmentation of habitat . 2


A species may be threatened or vulnerable, but not considered rare if, for example., Have a large population Mitchell Trubisky Hat , dispersed, but their number declines rapidly or is predicted that. Rare species are generally considered threatened simply because of their inability to recover small population of events stochastic and the potential for rapid decline of its population.


A spike is a type of inflorescence racemose in which the shaft or rachis is elongated and the flowers are sessile, reaching younger flowers at the apex of it.


Examples of species that have spike inflorescences are plantain ( Plantago ), pineapple or pineapple ( Ananas ) and gladiolus ( Gladiolus ).


According to the shape and size of the spine can distinguish several different types of spikes. Thus, Ananas Roquan Smith Hat , the spike is oblong and the terminal bud is vegetative. In Plantago , the pin is cylindrical and Gladiolus is statistical.


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To help businesses stay on track, it is essential to make proper inventories of office supplies in an organization. Any company should develop efficient means of ordering these supplies and finding the right providers for these products. These supplies are used daily and vary depending on the number of employees in the workplace.


The Company recruits an employer to take charge of making inventories and ensuring that reordering is done every month or every two to three months. They should keep track of the supplies and minimize waste. Every corporate organization requires consumables including food and beverages, washroom supplies Khalil Mack Hat , kitchen cleaning equipment and corporate gifts as well as ordering of wine, spirit and beer. The other important items required in the office are stationery and office equipment. Some companies also hire glasses, ice and outdoor furniture for the office especially when an event is conducted.