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COMMUNIQUESAN GABRIEL VALLEY

CACTUS & SUCCULENT SOCIETY

An Affiliate of the Cactus & Succulent Society of America, Inc.Meetings are held at 7:30 PM on the 2nd Thursday of the monthin the Lecture Hall, Los Angeles County Arboretum, Arcadia

May 2007 Volume 40 Number 5______________________________________________________________________________

Monthly Meeting: Join us Thursday, May 10th at 7:30 pm for a trip to Namaqualand, South Africa viaslide presentation by our guest speaker Laurel Woodley. Laurel is currently Vice-President of CSSA and amember of several local clubs. Her presentation will focus on the succulent flora but will show some of thenon-succulent shrubs and annuals, as well.______________________________________________________________________________________________________________________

A special thanks to John Bleck for taking us on a journey to Argentina. As you will recall, John drove downfrom Santa Barbara during one of our worst windstorms.______________________________________________________________________________

Plants of the Month: (see attached write ups)

CACTI – Tephrocactus SUCCULENT – Caudiciforms

Bring in your tephrocactus and caudiciforms for our monthly mini-show. If you are not familiar with theseplants be sure to read Tom Glavich’s articles. It will help you prepare for the real shows and give you anadditional opportunity to show others your pride and joy. If you don’t have any of this type of plant you canlearn about them at the meeting_____________________________________________________________________________

Study Group: Wednesday, May 16th; Topic – Vegetative Propagation

Join us for annual Vegetative Propagation Workshop. As usual, the meeting will be held in theGrapevine room of the San Gabriel Adult Center, 324 South Mission Dr. (between the San Gabriel Missionand Civic Auditorium) at 7:30 pm. Also, we usually have a large selection of cuttings and other plantsdonated by members that are given away by lottery at the end of the meeting._____________________________________________________________________________

Boxes, Boxes, Boxes, Boxes, Boxes, Boxes, Boxes, Boxes, Boxes

Save your Boxes!

It is time to start saving your boxes as Jim Hanna no longer has access to allthose boxes he provided for plant sales at the Inter-City and Winter Shows.

If you have any questions, please see Jim Hanna.

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Board Meeting: There will be a board meeting Saturday, May 19th at 1:00pm at the home of Jean Mullens.The club will provide pizza and beverages. E-mail President Tom Vermilion – grandicornis@verizon.net ifyou will be attending.______________________________________________________________________________

Personal Notes: Welcome new members: Maureen Johnson, Brian Le, Jan Zwierstra and HarynDeLeon. SGVCSS also welcomes back: Joey Guerra and Gwendoline Hill.______________________________________________________________________________________

Postage Increase: Postage will increase to 41¢ effective May 14th. If you are not receiving yourCOMMUNIQUE via e-mail now is a good time to sign up!_______________________________________________________________________________________

Remember to wear your badge to the meetings! Effective April 1, Susan will only give a ticket fora door prize to those members wearing their badge. Also, you need to wear your badge to check out a bookfrom the library. If you can’t find your badge see Bill Gerlach to order a new badge._____________________________________________________________________________

Refreshments: The following club members have signed up to bring refreshments for the April: TommyDodson, Ana Troub and William Molina. Remember the first three people to sign up and bringrefreshments will receive a plant.______________________________________________________________________________

April Plant-of-the-Month Mini Show Results

Cacti- Gymnocalycium Succulent- Dudleya

Beginner

1st Pat Swain G. saglione 1st Eunice Thompson D. guadacupensis2nd Pat Swain G. manzanense 2nd Michael Romero D. pulverulenta3rd Eunice Thompson G. minhanovichii 3rd Cindy Arakaki D. hassei

Intermediate

1st Barbara Hall G. fleischerianum 1st J & B Wilner D. Hybrid2nd Barbara Hall G. bruchii 2nd H Birgh-T Dodson D. cymosa ssp pumila3rd H Birgh-T Dodson G. pflanzii s-albipulpa 3rd H Birgh-T Dodson D lanceolata

Advanced

1st 1st Rita Gerlach D. Hassei2nd Carol & Paul Maker G. calochlorum 2nd Barbara Nolan D. "White Sprite"3rd Carol & Paul Maker G. saglionis 3rd Barbara Nolan D. sp

Master

1st Tom Glavich G. chiguitanum 1st Jim Hanna D. guadalupensis2nd 2nd Jim Hanna D. caespitosa3rd 3rd Jim Hanna D. farinosa

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San Gabriel Valley Cactus and Succulent Society

Cacti of the Month May 2007 – Tephrocactus, Puna and Pterocactus

The Cacti of the Month for May 2007 areall South American members ofOpuntioideae, relatives of the commonOpuntia native to Southern California. TheCactus family is divided into a number ofsubfamilies. The Opuntioideae is one ofthese sub families. The Opuntioideaecovers the largest geographical range ofany of the sub-families, stretching fromSouthern Argentina to Canada, and coversall of the Caribbean islands and PacificIslands from the Galapagos to theCatalinas.

The first plants that come to mind whenone thinks of Opuntia are the flat paddedplants, seen everywhere, or the spinycylindrical Cholla common to the localhillsides and deserts. The Opuntioideaefamily offers much more, and some of thebest come from the upland regions ofSouth America.

Propagation of all Opuntias is most easilyaccomplished by cuttings. All cuttings rooteasily. Seed propagation requirespatience, with seed scarification andsometimes artificial wintering by keepingthe seed damp and cold in the refrigeratorrequired. Seed germination can be erratic,with seeds from the same plant sometimesgerminating in days, and sometimes notfor months.

Handling of Opuntias is somewhat of aproblem. They are notorious for their wellplaced sharp spines, and nearly invisibleglochids. Handling with steel tools is thebest bet. Gloves get covered withglochids, which invariably end up in yourhands when the gloves come off. Glochidscan often be removed by washing with astrong hose stream. Plucking with

tweezers is effective and brushing workssometimes. Duct tape is a help, and as alast resort, so is rubber cement.

Plants worth knowing

Pterocactus australis entered in the 2003CSSA Show by Charles and Joann Spotts

Pterocactus is an Argentine geophyticgenus, with deciduous brown stemscoming from a convoluted and interestingtuberous root. The stems are easilyrooted, which is fortunate, since they areeven more easily detached, whenever theplant is moved. The roots grow quickly,and can be raised every year or two tomake a spectacular plant.

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Pterocactus tuberosa is the mostcommonly seen species, but others haverecently become available.

Puna is another mostly Argentinegeophytic genus, related to bothPterocactus and Tephrocactus. Largesubterranean toots are topped by smallusually globular heads. Puna bonnieae,discovered in 1990, is just coming intocultivation.

Tephrocactus sp. entered in the 2003CSSA Show by Ray Folck

Tephrocactus, again Argentine, is a genusof very variable cacti. Species varyconsiderably, from the very spinyTephrocactus stramria to the paperspined Tephrocactus articulata to thenearly spineless Tephrocactus inermis.Tephrocactus are probably the mostcollected of the Opuntioideae, and there iseven a Tephrocactus study group for thetrue fanatics. They make small, neatplants, and a good collection can be keptin a reasonable area.

References:

Britton and Rose, The CactaceaeCullman, Gotz and Groner, TheEncyclopedia of CactiErik Haustein, The Cactus Handbook

Tom Glavich February 2004

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San Gabriel Valley Cactus and Succulent Society

Succulent of the Month May 2007 - Caudiciform Succulents

A caudex is a generally accepted as aswollen stem or swollen root, or mostoften a combination of the two. Thereis no exact, horticulturally accepteddefinition of the word caudex. Over theyears it has been defined slightlydifferently by too many authors.

A caudex is a swollen plant base thatsupports leaves and stems, andsometimes flowers. It generallyconnects directly to roots, butsometimes is just an extension of a taproot. It differs from a root or tuberprimarily by tolerating being aboveground without rotting for extendedperiods. A caudiciform succulent issometimes distinguished from apachycaul (elephant like) succulent bybeing wider than taller, but this too is avague definition.

Tylecodon booliae in a 1 inch pot

Caudiciforms come in all sizes, from wellunder an inch to many feet in diameter.Cultivation requirements vary so widely, thatfew useful statements can be made. Ingeneral, caudiciforms come from sub

tropical and tropical climates, and can bedamaged or killed by a freeze. Most preferrapidly draining soil mixes, and toleratepoorly excessive long term wetness. Theywant food and water when growing, andwant to be kept dry when they are not.

Pachypodium bispinosum

Pachypodiums are mostly caudiciformplants, and easily propagated by seed.Many can also be propagated by either stemor root cuttings.

Othonna retrofracta

There are many winter growing, small tomedium size Othonnas, with caudiciforms.These start growth in October, and growthrough the first hot days of spring.

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Not all caudiciforms are small. Shownbelow is a Fockea edulis in an 8 inch pot.This will easily fill a 15 inch pot, given a fewmore years. Fockea are some of theeasiest grown caudiciforms, readilyavailable, and fast growing. They do bestwith regular feeding, grow most in thespring with late winter rains, but will bulk upall year long. Caudex growth is fastest ifthey are left underground, and the stemsare allowed to trail. They look best with thestems and leaves trimmed into a neat ball.

Fockea edulis

Some cuttings will not form caudexesunless double cut. Once growth is strong,the top of the green shoot needs to be cutoff again to force the plant to start acaudex. Some species form a perfectlysymmetrical caudex when grown fromseed, but form distorted (but often moreinteresting) caudexes when grown fromcuttings.

Euphorbia squarrosa

Many of the most interesting caudexes canbe found in the genus Euphorbia. Shownabove is a South African species,Euphorbia squarrosa, which is easily grownand tolerant of a Southern Californiaclimate. But there are many others in thisfamily, particularly from Madagascar whichdeserve to be grown. The Madagascanspecies are more difficult, and less tolerantof cold. The South African species areeasy, requiring only patience to developlarge the large caudex seen above.

ReferencesGordon Rowley Caudiciform andPachycaul SucculentsHerman Schwartz, The EuphorbiaJournals

Tom GlavichApril 2007

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CACTUS AND SUCCULENTCALENDAR OF UP COMING EVENTS FOR 2007

May 5th -6th Sunset Cactus and Succulent Society Show and Sale, Veterans Memorial Center,Garden Room, 4117 Overland Ave., Culver City, CA. Info. #310-822-1783

May 12th -13th Los Angeles Geranium Society Show and Sale, LA County Arboretum, 310 BaldwinAvenue, Arcadia, CA (Mother’s Day Weekend). There will be a selection of speciesand succulent Pelargoniums at both the show and sale.

May 20th Huntington Plant Sale 10 to 5 Huntington Botanical Garden1151 Oxford Road, San Marino CA #626-405-2160

May 20th Epiphyllium Society Show and SaleLos Angeles County Arboretum, Arcadia, CA #310-670-8148

May 25th-30 th CSSA 32nd Biennial Convention—Seattle, Washington

June 2nd -3rd San Diego Cactus and Succulent Society Show and SaleBalboa Park, Room 101, San Diego, CA. Info #619-477-4779

June 9th Gates Cactus and Succulent Society 30th Show and Sale – 9 to 4Jurupa Mountains Cultural Center, 7621 Granite Hill Drive, Glen Avon, CAInfo #909-390-8802

June 9th -10th Los Angeles Cactus and Succulent Society Show and SaleSepulveda Garden Center, 16633 Magnolia Blvd. Encino, CA Info #818-363-3432

June 29th -30th

& July 1st CSSA Annual Show and Sale – Huntington Botanical Gardens1151 Oxford Road, San Marino, CA #626-405-2160 or 2277Plant Sales start June 29th thru July 1st. Show opened to the public June 30th thru July 1st

Aug 18th – 19th 22nd Annual Intercity Show and Sale – LA County Arboretum310 N. Baldwin Ave., Arcadia, CA Info Call Tom Glavich #626-798-2430 orBarbara Hall #818-368-6914

Sept. 2nd Huntington Botanical Gardens Succulent Symposium – All Day at the Huntington

Nov 10th - 11th San Gabriel Valley Cactus and Succulent Society Show and SaleLA County Arboretum 301 No. Baldwin Ave., Arcadia, CA

Dec. 1st -2nd Orange County Show and Sale – Fullerton Arboretum1900 Associated Road, Fullerton, CA 92831Show and Sale Open from 10am TO 4pmFor Information Call #714-870-4887

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Bus Trip March 24, 2007

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If you have a cactus orplease forward the inforescheduled or canceleE-mail to: sgv_css@prEditor, c/o Evelynn Steby the last Thursday of

Material in the SGVCSS Cin a note accompanying thpublication containing thepublication without the perm

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COMMUNIQUENewsletter of the San Gabriel ValleyCactus and Succulent SocietyC/o Evelynn Stevens10119 ½ E Olive Street

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succulent related event that you’d like to have announced in the COMMUNIQUE,rmation to the address given below. Please verify event dates - sometimes events ared without adequate advance notice. Articles, Notices and Corrections can be sent viaodigy.net or via post to: San Gabriel Valley Cactus and Succulent Society Newslettervens, 10119 ½ E. Olive St., Temple City, CA 91780-3345. Material must be receivedthe month to be considered for publication in the next issue of the COMMUNIQUE.

OMMUNIQUE may be reprinted by nonprofit organizations (unless such permission is expressly deniede material) provided proper credit is given to the SGVCSS and the author and that one copy of thereprinted material be sent to the editor. Reproduction in whole or part by any other organization orission of the publisher is prohibited

Temple City, CA 91780