Xerophyte

Central Spines

(2-) 4 (-5), straight or occasionally hooked, brownish with darker ends, 6-8 mm long.

Seeds

Black.

Description

Mammillaria neopalmeriSN|5444]]SN|5436]] is a low growing cactus species usually forming clusters or cushions. It is a gynodioecious species consisting both of hermaphroditic and gynoecious plants.

Roots

Fibrous.

Note

The name “neopalmeri” (new palmeri) has been introduced to disambiguate a very tangled taxonomic question, because the name Mammillaria palmeriSN|5436]]SN|5444]] was previously published by Jacobi 1856, for another (not clearly identified plant) and necessitated the adoption of a new name to reclassify "Cactus palmeri" in the genus Mammillaria.

Tubercles

Conical, blunt pointed, four-sided basally, 4 mm high, latex free. Axil with abundant white wool and short twisted bristles. Parastichy number 8-13.

Flowers

Diurnal, actinomorphic, pale greenish white to light green, sometimes with pinkish tint, to 10-12 mm long and in diameter. Pistil in olive green, stigmas yellowish.

Blooming Season

Summer.

Stem

Globose to somewhat elongated or shortly cylindrical, grey-green to glaucous, up to 9 cm tall and 5 cm across. Without latex.

Radial Spines

(15-)20-25(-30), slender, needle-like, white, 3-6 mm long.

Fruits

Club shaped, scarlet red , to 13 mm long.

Areoles

Wolly at the end of the tubercles.