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Mammillaria sp


Mammillaria sp
Photo Information
Copyright: Tom and Martina Trnka Dobis (DOBIS) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 126 W: 16 N: 170] (632)
Genre: Plants
Medium: Color
Date Taken: 2007-03-18
Categories: Cacti
Camera: Canon 400D, 50mm 1:1.8
Exposure: f/8, 1/8 seconds
Details: Tripod: Yes (Fill) Flash: Yes
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2007-03-19 8:21
Viewed: 3776
Points: 9
[Note Guidelines] Photographer's Note
Mammillaria
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A cactus of genus Mammillaria in flower
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Mammillaria
Haw.

Species

171 known species: see Species list.


The genus Mammillaria is one of the largest in the cactus family Cactaceae, with currently 171 known species and varieties recognized. The first was described by Carolus Linnaeus as Cactus mammillaris in 1753, deriving name from Latin mammilla = nipple, referring to the tubercules that are one of the plant's specific features. In 1812, the cactus specialist Adrian Haworth described the genus Mammillaria to contain this and related species.

The distinctive feature of the genus is the specific development of an areole, that is split into two clearly separated parts, one occurring at the tubercule's apex, the other at its base. The apex part is spine bearing, and the base part is always spineless, but usually bearing some bristles or wool. The base part of the areole bears the flowers and fruits, and is a branching point. The apex part of the areole does not carry flowers, but in certain conditions can function as a branching point as well.

The plants are usually small, globose to elongated, the stems from 1 cm to 20 cm in diameter and from 1 cm to 40 cm tall, clearly tuberculate, solitary to clumping forming mounds of up to 100 heads. Tubercules can be conical, cylindrical, pyramidal or round. The roots are fibrous, fleshy or tuberous. The flowers are funnel-shaped and range from 7 mm to 40 mm and more in length and in diameter, from white and greenish to yellow, pink and red in color, often with a darker mid-stripe. The fruit is berry-like, club-shaped or elongated, usually red but sometimes white, yellow or green. Some species have the fruit embedded into the plant body. The seeds are black or brown, from 1 to 3 mm in size.

Mammillarias have extremely variable spination from species to species, and attractive flowers, making them specifically attractive for cactus hobbyists. Mammillaria plants are considered easy in cultivation, though some species are among the hardest cacti to grow.

jeanpaul, actagaudi, ppmiranda has marked this note useful
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Critiques [Translate]

Bonjour Tom and Martina
Une excellente photoen macro de cette belle fleur parmis toutes ces épines,les couleurs sont justes et parfaitements exposées ainsi que les détails.. Félicitations pour la belle composition .

Merci et bravo...JP

Hi! precious macro! very good clearness and magnificent colors, congratulations.

nice colors good DOF nice composition

  • Great 
  • GLEM Gold Star Critiquer/Gold Star Workshop Editor [C: 540 W: 87 N: 750] (10)
  • [2007-03-19 15:40]

hi Tom and Martina
ah oui, ça c'est un très bon choix, d'avoir serré sur le fleur de se cactus. J'ai tout de suite reconnue, car ma maman en fait une collection. Bon détail, belle couleur.


gaetan

Hi

Very fine photo and very exhaustive note. I like this photo for composition, focus on flower and interesting frame.

actagaudi

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