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  Tucson Cactus and Succulent Society

Thursday September 5, 2019 from 7 - 9 pm

"Who’s Yer Daddy?

The story of Echinocereus X roetteri from the Jarilla Mountains, New Mexico

(With an introduction to introgressive hybridization)"

Presented by Gerald K. (Jerry) Arp Ph.D

Click here to watch the presentation of the meeting on video

Note the meeting location:

Sky Islands Public High School, 6000 E. 14th Street, Tucson, AZ 85711

The pink Echinocereus


Resolving the mystery of the “Pink Echino”
Gerald K. (Jerry) Arp Ph.D., Univ. of Colorado, 1972. Dissertation, Studies in the Colorado Cacti. Dr. Arp developed an interest in plants as a youngster while growing up in Colorado in the 1950’s. His initial plant interests were horticultural but frustration with some horticultural practices and an abiding interest in plant relationships pushed him into the Science of Botany. By pursuing botany, he hoped to resolve many questions regarding botanical groups of interest to him. In the middle 50’s he become fascinated by the flora and fauna of the deserts and plateaus of the American Southwest. Shortly after receiving his Ph.D. in 1972, Dr. Arp’s career goals went upside down. When he finally hit ground, he had secured a position at NASA, where he worked with data from Landsat, the world’s first Earth Resources remote sensing satellite. He went on to pursue research in areas of surface geochemistry, geobotany, and biogeochemistry as applied to mineral and petroleum exploration. Dr. Arp returned to the world of satellites as Senior Imagery Analyst and Manager of Technical Support for a satellite-based company in Washington, DC. After 911, his expertise was applied to research for a variety of Government agencies, ultimately landing him at White Sands Missile Range, New Mexico. He has since retired to a life of poking cacti and wincing when they poke back. His anonymous retired life ended abruptly when he was chatted up by Mark Sitter at B & B Cactus Farm, during a recent nursery visit and it has been downhill ever since.

Please make plans to come and enjoy this program. Talk with members and guests make new friends. Visit our library and check out some books! During the break, you will truly want to enjoy the great refreshments. Also, try to win some of the plants available in our raffle, then finally, be sure to stay until the end of the meeting and get your free plant offered to you by the Tucson Cactus and Succulent Society.




Front Garden

Free Plant Giveaway

You can view the plants on this page

September Refreshments

Those with family names beginning with A - J,
please bring your choice of refreshments
to the meeting. Your generous sharing will
be greatly appreciated and enjoyed!

Meeting Schedule

Get a map and directions from Google Maps

TCSS reserves the right to change dates and/or program should it be necessary.