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Submitted by: Jim Tanner

[Ed: Same text used for both Cactus and Succulent this month]

Crested and monstrose is the occurrence of growth mutations throughout the plant kingdom, but we happen to be most interested in the topic as it applies to succulents, especially cacti and euphorbias, aeoniums, echeverias, and other succulents too.
Crested and monstrose plants are those that exhibit abnormal, distorted or disfigured growth. This happens when a mutation occurs during cell division. But rather than perfectly flat layers of tissue resulting, the damage to the central growing point creates multiple growing points that crowd and push against each other. Peculiar shapes form from this energy — such as those resembling brains, fans, coral, and snakes.

In monstrose growth, the mutation typically makes random multiple growing points that are not stacked next to each other — there’s one here, another over there, pushing the body of the plant all out of shape in disorderly fashion. The crested and monstrose forms generally occur because of injuries to the plant at a young age. In reaction to this injury, the cells at the tip of the branch where growth occurs begin to multiply at a much faster rate and the normal growing tip creates crested plants.

In monstrose specimens, each of those growth tips behaves as if it were the primary point. The result is messy, lumpy, monster-like growth. Cristates look more neat and symmetrical in comparison.
Plants can exhibit mutated and regular growth at the same time. Crests and monstrose growth are unpredictable; no two are precisely alike. That goes for plants of the same species.

Crested Echeveria
Crested Echeveria
Echeveria 'Cubic Frost' f. cristata
Echeveria 'Cubic Frost' f. cristata
Echeveria 'Cubic Frost' f. cristata
Echeveria 'Cubic Frost' f. cristata
Echeveria cuspidata var. zaragozae f. cristata
Echeveria cuspidata var. zaragozae f. cristata
Euphorbia lactea f. cristata
Euphorbia lactea f. cristata
Euphorbia leucadendron f. cristata
Euphorbia leucadendron f. cristata
Gasteria nigricans f. monstrosa
Gasteria nigricans f. monstrosa

LATIN LOOKUP – Loquerisne Latine (Do you speak Latin)?

The meanings of latin plant names on this page – from http://davesgarden.com/guides/botanary/

  • cristata [kris-TAY-tuh]
    Crested.
  • cuspidata [kus-pi-DAY-tuh]
    Sharp-pointed.
  • Echeveria [ech-eh-VER-ee-a, ech-eh-ver-EE-a]
    Named for Anastasio Echeverria y Godoy, 18th century Spanish botanist.
  • Euphorbia [yoo-FOR-bee-uh]
    Named for Euphorbus, Greek physician to Juba II, King of Mauretania.
  • Gasteria [gas-TAIR-ee-uh]
    From gaster, (belly, stomach); referring to swollen base on flower.
  • lactea [lak-TAY-uh]
    Milky.
  • leucadendron [lew-kuh-DEN-dron]
    From the Greek leukos (white) and dendron (tree); for the white foliage.
  • monstrosa [mon-STROH-sa]
    Strange, wonderful; monstrous; also spelled monstruosa.
  • nigricans [ny-grih-kans]
    Black.
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