H Euphorbia laurifolia Juss. ex Lam. is an accepted name. This name is the accepted name of a species in the genus Euphorbia (family Euphorbiaceae). Euphorbia laurifolia is the name of a species, part of the genus Euphorbia. This species has been described by Juss. ex Lam. under the rules of the International . Family: Euphorbiaceae Juss. Genus: Euphorbia L. Euphorbia laurifolia Juss. ex Lam. This species is accepted, and its native range is W. South America to NW.
|Published (Last):||17 November 2018|
|PDF File Size:||4.32 Mb|
|ePub File Size:||14.61 Mb|
|Price:||Free* [*Free Regsitration Required]|
There lauifolia be specialized leaves called cyathophylls or cyathial leaves that surround the cyathium and give an overall flower-like appearance to the whole complex inflorescence.
Five glands Six glands with petaloid appendages Fused glands, ring-shaped. Many of the herbaceous, leafy species of Euphorbia are commonly called “spurges.
There was a problem providing the content you requested
Fruits of Euphorbia are capsules that typically split open explosively when ripe. The milky sap or latex of spurges is suggested to have a protective and defensive role in helping heal wounds and in deterring potential plant-eaters.
The Pencil tree of Milk bush E. There is a wide variety of chemical compounds present in Euphorbia sap, and some of them are toxic and potentially carcinogenic. American Journal of Botany Euphorbia is a genus of plants in the Euphorbiaceae family.
It contains at least 2, species and is one of the most diverse groups of flowering plants on earth. Cyathia can differ widely in the presence lahrifolia associated euphorvia or cyathophylls.
Euphorbia laurifolia Juss. ex Lam. — The Plant List
Comparative ontogeny of the cyathium in Euphorbia Euphorbiaceae and its allies: Since euphorbus also means “good fodder” or well-fed in Greek, laurifopia is also some speculation that Juba coined the name because both the plant and his physician were of rather fleshy constitution. The colorized scanning electron micrograph on the right is reproduced here with permission of the American Journal of Botany. Succulent euphorbias are most diverse in southern and eastern Africa and Madagascar, but they also occur in tropical Asia and the Americas.
The involucre almost always has one or more special glands attached to it, most often on the upper rim, and these glands and their appendages vary greatly in size and shape. Among the succulent or thorny species, E. Other common names in Euphorbia Threre are many local names for particular species of Euphorbia. The name, however, goes much farther back in history, and we can trace its origin at least as far back as the Roman officer Pliny the Elder, who named Euphorbia in his book, the Natural History of Pliny 79 AD.
There are many herbaceous spurges, especially in euphorbla zones worldwide, but the genus is best known for its many succulent species, some of which appear very similar to cacti.
Generally there is a single female flower in the center consisting of a pedicel, a three-parted ovary, and no petals or sepals associated with it. Cyathia are often aggregated into more complex units synflorescencesusually based on an inflorescence model called a cyme or an umbel. For languages other than English, there are also many common names for different species of Euphorbiabut they will be included in individual species pages.
About the genus Euphorbia. Inside the involucre are the flowers, usually with a number of extremely simplified male flowers consisting of a single anther, filament, and pedicel.
The number and forms of involucral glands as well as gland appendages varies enormously as shown by these examples below. All flowers in the Euphorbiaceae are unisexual either male or female onlyand they are often very small in size.
Candelilla wax is obtained from E. In terms of symmetry, cyathia can be essentially actinomorphic, with many planes of symmetry, or slightly or strongly zygomorphic bilaterally symmetrical, with only one plane of euphorvia. The implications of this finding for understanding euphorbiia evolution of Euphorbia are significant, and further understanding the phylogenetic relationships within subgenus Esula may help us understand where and how the genus evolved and spread to its current worldwide distribution.
Many succulents are in turn thorny, and some have well developed underground tubers. The main defining feature euphorbis the cyathium is the floral envelope or involucre that surrounds each group of flowers. Five glands with fingerlike appendages Four glands with fingerlike appendages Five glands without appendages.
According to Pliny, after Juba moved laruifolia Mauretania, he was treated with a plant with powerful medicinal properties, and he named the plant after his Greek physician Euphorbus.
Tropicos | Name – Euphorbia laurifolia Juss. ex Lam.
Digital art and illustrations: The main uses of spurges are horticultural. Suphorbia makes a Euphorbia Origin of the cyathium Fruits and seeds Diversity of life forms Uses and toxicity Systematics and classification The botanical name Euphorbia Common names. From this kind of precursor, the cyathium was presumably formed by a strong condensation of the inflorescence into its current involucres.
One of the Canary species was eventually named Euphorbia regis-jubae in his honor. Our understanding of the relationships of Euphorbia has been bolstered by comparative DNA sequence data from many species, and these results support a broad view of the genus that includes a number of groups that were formerly recognized as different genera, such as ChamaesyceMonadeniumEupohrbiaand Poinsettia.
Medusoid succulent herb Shrub with pencil-like branches Sphaeroid succulent plant. In other cases, such as E.
Euphorbia laurifolia Juss. ex Lam.
Annual herb Perennial euphorboa Succulent cushion-like plant. Compounds known as terpene esters are common and often account for the extremely caustic and irritating properties of the milky sap, either by direct contact with the skin or even by exposure to the air and inflammation of the eyes or mucous membranes. Some species of Euphorbia have been used in folk medicine over the centuries, especially in the Euphorbia esula alliance.