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Genus of the Week

Week of November 23-29

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This page has been created for people who want to learn more about plants, especially in the context of their taxonomy (Latin names, etc.). This is by no means an exhaustive list of all available Web resources for a particular genus.
If you like this page, you should also visit the Land of the Glandular Trichomes , a microscopic look at plants in the Lamiaceae family.

This week's genus:


Image of Schlumbergera gaertneri
image above 1999-2000 www.arttoday.com
Subclass: Dicotyledoneae
Superorder: Caryophyllidae
Order: Caryophyllales
Family: Cactaceae (The Cactus Family)
Number of Species: At least 4, with many varieties

The genus Schlumbergera consists of several cactus species which share the distinction of bearing bright beautiful flowers each winter. The two most commonly known species are the Christmas Cactus (S. bridgesii) and the Thanksgiving Cactus (S. truncata), though it can be difficult to determine the species since these ornamental plants are often hybridized.

Here are a few links to images and descriptions of different Schlumbergera species:


  1. Crockett, James Underwood. Crockett's Indoor Garden. Boston, Little, Brown & Company: 1978.

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