휘운(輝雲)

휘운

(輝雲)

국표에는 없다.

Melocactus bahiensis

Scientific Name;Melocactus bahiensis (Britton & Rose) Luetzelb.

Synonyms;Melocactus bahiensis subsp. bahiensis, Melocactus bahiensis f. bahiensis

Scientific Classification

Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Genus: Melocactus

Description

Melocactus bahiensis is a small globular cactus with ribbed stem capped by a cephalium with wool and brown bristles. The stem is globose or pyramidal, light to dark green, up to 8 inches (20 cm) tall and in diameter. The cephalium is mostly small with many brown bristles, up to 2 inches (5 cm) high and up to 3 inches (7.5 cm) in diameter. The spines are short, curved, off-white, except in the center where the new ones are yellow, reddish brown, dark brown to black often bent or even hooked in juvenile specimens. The flowers are pink, up to 1 inch (2.5 cm) long and up to 0.5 inch (1.2 cm) wide. The fruits are red to crimson on the top white or pale pink at the base, up to 1 inch (2.5 cm long) and 0.4 inch (1 cm)in diameter.

https://worldofsucculents.com/melocactus-bahiensis/

Origin and Habitat: Eastern Brazil (Bahia)

Habitat: It grows in open savannah biome vegetation in sandy soils developed from siliceous rocks and on gneiss or ancient granite outcropping, often along with Pilosocereus floccosus.

Description: Melocactus bahiensis is a small globular cactus easily distinguished by its ribbed stem capped by a cephalium with wool and brown bristles. It remembers a crowned head
Stem: Depressed-spherical, globose or pyramidal, light to dark green 10-21 cm tall, 11-21 cm in diameter in diameter.
Ribs: (8-)10-12(-14) flattened to acute and quite variable in shape.
Areoles: White10-24 mm apart.
Cephalium: Mostly small with many brown bristles up to 5 cm high and 6,5-8,5 cm in diameter.
Spines: Short, curved, off-white, except in the centre where the new ones are yellow, reddish brown, dark brown to black often bent or even hooked in juvenile specimens.
Central spines: 1-4 per areola, 10-53 mm long mostly straight-projecting:
Radial spines: 7-12 mostly straight. 13-50(60) mm long, the lowermost only a little longer than the others.
Flowers:18-23 mm long, 10-12 mm wide. Pericarpel 6,5-8,5 cm long with white wool and bristles.
Fruit: Berry, club-shaped up to 25 mm long, 9 mm in diameter, red to crimson on the top white or pale pink at the base.
Seeds: 1-1,35 x 1 mm somewhat tuberculate.
Chromosome number: 2n = 44