| Discocactus placentiformis | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Discocactus |
| Species: | D. placentiformis |
| Binomial name | |
| Discocactus placentiformis (Lehm.) K.Schum. | |
Discocactus placentiformis is a species of Discocactus found in Brazil. [1]
A cactus is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1,750 known species of the order Caryophyllales. The word cactus derives, through Latin, from the Ancient Greek word κάκτος (káktos), a name originally used by Theophrastus for a spiny plant whose identity is now not certain. Cacti occur in a wide range of shapes and sizes. They are native to the Americas, ranging from Patagonia in the south to parts of western Canada in the north, with the exception of Rhipsalis baccifera, which is also found in Africa and Sri Lanka. Cacti are adapted to live in very dry environments, including the Atacama Desert, one of the driest places on Earth. Because of this, cacti show many adaptations to conserve water. For example, almost all cacti are succulents, meaning they have thickened, fleshy parts adapted to store water. Unlike many other succulents, the stem is the only part of most cacti where this vital process takes place. Most species of cacti have lost true leaves, retaining only spines, which are highly modified leaves. As well as defending against herbivores, spines help prevent water loss by reducing air flow close to the cactus and providing some shade. In the absence of true leaves, cacti's enlarged stems carry out photosynthesis.
January is the first month of the year in the Julian and Gregorian calendars. Its length is 31 days. The first day of the month is known as New Year's Day. It is, on average, the coldest month of the year within most of the Northern Hemisphere and the warmest month of the year within most of the Southern Hemisphere. In the Southern hemisphere, January is the seasonal equivalent of July in the Northern hemisphere and vice versa.
M, or m, is the 13th letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is em, plural ems.
Disocactus is a genus of epiphytic cacti in the tribe Hylocereeae found in Central America, the Caribbean and northern South America. It should not be confused with Discocactus, which is a different genus.
Discocactus is a genus of tropical cacti. Discocactus plants are endemic to southern Brazil, eastern Bolivia, and northern Paraguay. These species are in the risk of extinction in the wild.
The Cactoideae are the largest subfamily of the cactus family, Cactaceae, and are widely distributed throughout the Americas. Around 80% of cactus species belong to this subfamily. The genera of the Cactoideae are characterized by microscopic foliage leaves. All photosynthesis occurs in shoot cortex cells covered by a persistent epidermis and stomata. Another important characteristic of this subfamily is ribbed stems, which enable the inner cortex to expand radially without breaking the shoot surface to absorb large quantities of water.
In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word succulent comes from the Latin word sucus, meaning "juice" or "sap".
Discocactus bahiensis is a species of Discocactus from Brazil.
Discocactus boliviensis is a species of Discocactus found in Bolivia.
Discocactus catingicola is a species of Discocactus found in Brazil.
Discocactus diersianus is a species of Discocactus found in Brazil.
Discocactus fariae-peresii is a species of Discocactus found in Brazil.
Discocactus ferricola is a species of Discocactus found in Bolivia and Brazil.
Discocactus hartmannii is a species of Discocactus found in Paraguay to Brazil
Discocactus zehntneri is a species of Discocactus found in Brazil.
Discocactus heptacanthus is a species of Discocactus found in Brazil, Bolivia, and Paraguay.
Discocactus horstii is a species of Discocactus found in Brazil.
Discocactus buenekeri is a species of Discocactus found in Brazil.
Discocactus petr-halfarii is a species of Discocactus found in Brazil.
Discocactus pseudoinsignis is a species of Discocactus found in Brazil.
Media related to Discocactus placentiformis at Wikimedia Commons
Data related to Discocactus placentiformis at Wikispecies  | This Cactaceae article is a stub. You can help Wikipedia by expanding it. |