Plant of the Week 01/13/2003
 
 
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Lobster Claw (Schlumbergera truncata)

Schlumbergera truncata (Haworth) Moran

Photographed by: Chelsie Vandaveer
Credits: Photographed Lobster Claw cactus in personal collection
Other Information: Canon AE-1, Fuji SuperHQ 100

The lobster claw or crab cactus (Schlumbergera truncata (Haworth) Moran) is an epiphytic cactus native to the Organ Mountains in the state of Rio de Janeiro, Brazil. The cactus grows naturally in leaf mould that collects in the forks of branches. The plants are frequently misidentified as Christmas cactus (Schlumbergera bridgesii). I prefer the older name for the lobster claw, Zygocactus truncatus. It was the first botanical name I learned.

It was November 1962 when I saw my first lobster claw. The plant was remarkably out-of-place. The neighbor who lived across the alley asked me to help carry canned goods. The basement was poorly lit--a few naked light bulbs and the winter light through the welled basement windows. Past the shelves of home canned beans, peas, and tomatoes, sat a lobster claw full of brilliant orangey-red blooms like tiny birds.

Ladislaus Cutak (Cactus Guide, 1956) wrote "It is a bushy plant of graceful arching habit, composed of thin, glossy leaf-like joints up to two inches long. Zygomorphic flowers are extremely beautiful and possess a distinct shape from most other epiphytic cacti. The flower tube is sharply bent upward above the ovary from which petaloid scales arise that have the same color as the true petals at the end of the tube." He added almost with regret, "Zygocactus flowers show a great variation in color, consequently, nearly a hundred forms have been mentioned in early day literature. However...it is difficult to trace their history in these modern times. It is possible that many of the forms have been lost or gone out of circulation."

I do not think Mrs. B. ever visited a 'jungle', but her stories of plants quite caught my imagination. The sill of the window was above my head, back-lit by the winter sun, I knew what it must be like to see them in bloom in a tree far from a dull Midwestern winter.

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