Pierrebraunia

Pierrebraunia
Pierrebraunia brauniorum
Systematics
Nuclear eudicotyledons Order : Clove-like (Caryophyllales) Family : Cactus family (Cactaceae) Subfamily : Cactoideae Tribe : Cereeae Genre : Pierrebraunia
Scientific name
Pierrebraunia
Esteves

Pierrebraunia is a genus of plants from the cactus family(Cactaceae). The botanical name of the genus honors the German agronomist and cactus specialist Pierre Josef Braun (* 1959).

description

Pierrebraunia bahiensis

Pierrebraunia brauniorum

Pierrebraunia eddie-estevesii

Pierrebraunia eddie-estevesii

The species of the genus Pierrebraunia grow upright and are branched individually or at the bottom. Their spherical to columnar shoots are green to yellow-green or gray-green. They are not or partially covered with grayish flakes of wax. The 4 to 17 ribs are more or less wide. The needle-like thorns are spread out and, in Pierrebraunia brauniorum, on blooming , woolly areoles, broom-comb-shaped.

The tubular, pink to whitish pink flowers are 3 to 4 inches long. They appear laterally near the shoot tip and open during the day. Your pericarpel and tube are bare. The bracts are erect or somewhat spread out. The stylus and the stamens do not protrude from the tube. Pollination is done by birds.

The smooth, bare, spherical to egg-shaped, juicy and berry-shaped fruits are pink or dark red. They reach a diameter of 1 to 3 centimeters, do not open and have a persistent flower remnant. The fruits contain black, pear-shaped seeds up to 1.5 millimeters long and 0.6 millimeters wide.

Systematics and distribution

The genus Pierrebraunia is common in the Brazilian states of Bahia and Minas Gerais .

The first description of the genus was published in 1997 by Eddie Esteves Pereira (* 1939). The type species of the genus is Floribunda bahiensis . The systematic position of the genus has not been fully clarified. The International Cactus Systematics Group of the International Organization for Succulent Research considers the species to belong to the genus Arrojadoa .

The genus Pierrebraunia includes the following species:

• Pierrebraunia bahiensis (PJBraun & Esteves) Esteves
• Pierrebraunia brauniorum Esteves
• Pierrebraunia eddie-estevesii P.J.Braun

proof

literature

• Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 534 .

Individual evidence

1. ^ Eddie Esteves Pereira: Pierrebraunia Esteves, a new genus of Cactaceae from Brazil . In: Cactus and Succulent Journal . Volume 69, Los Angeles 1997, p. 296.
2. ^ Edward F. Anderson : The great cactus lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 534 .
3. ↑ Braun, PJ (2017): Pierrebraunia eddie-estevesii - a remarkable new find from Minas Gerais, Brazil.-Kakt.and.Sukk. 68 (12): 317-322

Web links

Commons : Pierrebraunia  - collection of images, videos and audio files