Culture plant of  Discocactus pulvinicapitatus 
Photo and description Piet van der Laken

Discocactus pulvinicapitatus HU425

  • Description

BUINING & BREDERO in het DISCOBOEK Venlo 1980 page 100 -105.

  • Short plant description HU 425 in culture

Diameter of the culture plant is 18 cm. Plant  height without cephalium 10 cm. The colour of the epidermis is green. The number of ribs is 18. Number of areoles per rib is 6-8. The number of radial spines is 5-7. The spines upwards are 0.5 cm and the 3 spines side- and downwards are up to 2.5 cm. The shape of the spines is straight to slightly bent to the plant and the colour is gray/brown.

 

  • Remarks

Discocactus pulvinicapitatus in culture is a difficult plant to cultivate. This species is very sensitive to fungal diseases especially in the first two years.

  • Literature

KUAS 1981 page 249
DISCOCACTUS 1980 page 100

pulvin02.jpg (766534 bytes)

Habitat photo of Discocactus pulvinicapitatus 
field number HU425
Photo: Albert Buining

  • Habitat

    HU425 20 km east of ENGENEIRO OMAR at 650 M. along the RIO JEQUITAI to JOAQUIM FELICIO 3km west of the road at the fazenda URUGAIANA.

    HU461 between Olhos d'Agua en Sitio. (Serra Mineira)

ENGENEIRO OMAR in MINAS GERAIS, Brazil  
Guia Rodoviario do Brasil, E-2

Culture plant of Discocactus pulvinicapitatus HU461.   (var.gigantoglobosus n.n.)          Photo and description Piet van der Laken

 

          

  • Discocactus pulvinicapitatus forma HU461

Diameter of the culture plant is (1999) ca. 20 cm. 
Plant height without cephalium 11,5 cm. 
The colour of the epidermis is green. 
Number of ribs is 24. 
Number of areoles per rib is 10 or more on plants with cephalium. 
The shape of the areoles is round.
The number of radial spines is 5-7 and 1 central spine to ca. 2 cm. The length of the other spines is 0.5 to 2 cm. 
The shape of the spines is straight and the colour is black to gray. 
The colour of the cephalium is gray to cream.
The colour of the fruit is cream/white. 
The position of the stigma is at the primary stamens.

  • Remarks

Recently it's discovered that the first flowers are mostly white. The culture plant is still growing. HU461 is also known as D. pulvinicapitatus var. gigantoglobosus (n.i.) It belongs to the D. latispinus group.

HU461_2.jpg (127626 bytes)

Photo: Albert Buining

            Habitat photo of Discocactus pulvinicapitatus.
           field number HU461.
  • Habitat

Rio Jequitai. Sitio, Minas Gerais, Brazil, in the same area of Uebelmannia pectinifera ssp. horrida.