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OfflinePlaceholder
Invisible manwith thesee-through mind
Male

Registered: 05/31/06
Posts: 163
Loc: Ontario, Canada
Last seen: 14 years, 9 months
cactus I.D./pictures
    #5951441 - 08/10/06 06:10 PM (17 years, 5 months ago)

Hey, i just got back from a local nusery and would love it if someone could identify a certain cactus for me, thanks.
here it is:





Now here are my other cacti!




thanks!


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InvisibleCorporal Kielbasa

Registered: 05/29/04
Posts: 17,235
Re: cactus I.D./pictures [Re: Placeholder]
    #5951460 - 08/10/06 06:15 PM (17 years, 5 months ago)

Its not what you hope it is.


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OfflinePlaceholder
Invisible manwith thesee-through mind
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Registered: 05/31/06
Posts: 163
Loc: Ontario, Canada
Last seen: 14 years, 9 months
Re: cactus I.D./pictures [Re: Corporal Kielbasa]
    #5951477 - 08/10/06 06:18 PM (17 years, 5 months ago)

While it would be nice if it was a san pedro, even though i do not know much about them i know that it only has 5 ribs, not enough...but i would still like to know what it is.


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Offlinefelixhigh
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Registered: 06/24/01
Posts: 7,557
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Re: cactus I.D./pictures [Re: Placeholder]
    #5951500 - 08/10/06 06:22 PM (17 years, 5 months ago)

what you thought might be a pedro is actually a Blue Myrtle (Myrtillocactus geometrizans).


FH


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OfflinePlaceholder
Invisible manwith thesee-through mind
Male

Registered: 05/31/06
Posts: 163
Loc: Ontario, Canada
Last seen: 14 years, 9 months
Re: cactus I.D./pictures [Re: felixhigh]
    #5951506 - 08/10/06 06:25 PM (17 years, 5 months ago)

thank you...would it be possible for them to have 6 ribs as well?


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InvisibleDety
Old No.7
Folding@home Statistics
Registered: 09/14/04
Posts: 1,685
Re: cactus I.D./pictures [Re: felixhigh]
    #5951768 - 08/10/06 07:40 PM (17 years, 5 months ago)

Quote:

felixhigh said:
what you thought might be a pedro is actually a Blue Myrtle (Myrtillocactus geometrizans).


FH




I agree.

Not to worrie tho myrtillocactus geometrizans is a great grafting cactus for long term grafts. :thumbup:


General Grafting Stock Species

Cereus:  Many of these fast growing species make good grafting stock.  The optimum height for grafting stock is between 8 cm to 12 cm tall. C. peruvianus is commonly suggested, although many other fast growing Cereus species can be used, especially those with open type spination.

Echinopsis:  Good acceptance of many species, but the root stock is not very resistant to disease, fungus and bug infestations.  Usually employed as a temporary graft when nothing better is available.

Echinocereus: Echinocereus coccineus is recommended as a good cold hardy stock, along with the more common Echinocereus triglochidiatus.  Echinocereus have a tendency to offset freely and may require more maintenance until the scion gets to a reasonable size.  They are an excellent grafting stock for Epithelantha species.  Taller robust growing forms with open type spination are an excellent choice when more natural type growth is desired.

Eriocereus (Harrisia) jusbertii:  Very universal stock with excellent life span and rot resistance.  However, cold hardy scions may look more natural on Opuntia fragilis or any robust growing cold hardy Echinocereus.

Harrisia:  The most commonly used species are H. grandiflora and H. jusbertii.  These and many other robust, fast growing Harrisia species work well.  See comments under Eriocereus.

Hylocereus:  Highly recommended stocks for very fast growth and well suited for grafting seedlings or very small young offsets.  Sometimes considered a temporary stock for many species unless grown in warmer climates where it has very better longevity in porous soil.  If you have a cooler climate, Selenicereus grandiflorus is a better choice for fast scion growth.  Whether you use Hylocereus or Selenicereus, best results come from single fully rooted cuttings which are cut to a height of 6 cm to 8 cm.  If branching side shoots develop near the base of the grafting stock, let them grow no longer than 6 cm to 8 cm before removing them to use as new cuttings.  Any side shoots which start to grow closer to the graft should be removed immediately.

Lemairocereus: (See the Stenocereus section further below).

Myrtillocactus geometrizans:  This is probably the safest species to use if you are growing indoors or in milder climates.  Very popular and widely recommended, mainly because it is readily available and works well for grafting most species.  I use this species frequently, along with more robust forms of Trichocereus bridgesii and Trichocereus peruvianus for most of my more permanent indoor or mild climate type grafts.

Opuntia:  Disease and rot resistant species are best, as long as they are fast growing. Opuntia fragilis is often recommended for grafting cold hardy species.  You can use younger Opuntia pads (new shoots) which are cut close to the bottom of the pad, graft scions onto the flat cut surface and then detach the pad 6 to 12 months later to root on its own.  Older pads which are still actively growing, but not yet producing a new shoot (new pad) can still be cut very close to the tip and grafted at that point as long as they are juicy upon cutting.  Be sure to visit the new excellent web site on Opuntia Compressa as a grafting stock by Valentino Vallicelli of Italy.

Pereskiopsis:  A common and temporary grafting stock that produces very fast growth with an increased tendency for the scion to offset freely.  A useful stock for very small or young scions.  The tips of the young shoots are best for grafting very young seedlings.  Because of the thin diameter of the stem, this is a useful stock for many tiny or very young species (including areole grafting which is sometimes called tubercle grafting).  "Grafting With Pereskiopsis" by Malcom Burleigh is an excellent article on the subject, just one of many grafting articles in the CSSA publication Special Grafting Issue, vol. 69, #1.  Also check out the David Rushforth article for grafting young Ariocarpus seedlings.  The same technique can be used with Selenicereus grandiflorus grafting stock when kept in a high humidity environment for up to 10 days after grafting.  For more advanced grafting using Pereskiopsis, see the article by by Irina V. Ovchinnikova.

Selenicereus grandiflorus:  A useful stock for grafting very small pups or very young seedling scions.  Roots quickly from cuttings, especially when the cutting has one or more aerial roots.  Aerial roots will form more quickly in a higher humidity enclosure, which will allow the cuttings to grow more quickly after planting.  Once the grafted scion becomes larger, it can be degrafted by cutting just above the point of union and allowed to root like a regular cutting. This will allow the degrafted plant to grow on its own roots and begin to take on more of the natural characteristics of the native plant.

Stenocereus:Stenocereus pruinosus (Lemairocereus pruinosus) and Stenocereus victoriensis (Stenocereus griseus) are the most common species and usually available almost anywhere cacti are sold.  However, the wider bodied species can have a significant amount of surface shrinkage and are probably best used for grafting offsets rather than seedlings.  Taller thinner bodied species are less prone to surface shrinkage and are more suitable for grafting seedlings.  Be sure to use adequate pressure upon the scion for proper bonding.  Some of the species are sensitive to excess fertilizer, so water only with plain water prior to grafting.  Do not use unless they are in an active growth period.

Trichocereus:  Many of the open spination types of Trichocereus species work well as fast growing columnar stocks and have a good success rate for lasting a long time. Trichocereus pachanoi (San Pedro Cactus) is commonly suggested as a universal grafting stock.  Any of the shorter spined strains of Trichocereus bridgesii or Trichocereus peruvianus will also work just as well or even some faster growing strains of Trichocereus werdermannianus.  Trichocereus macrogonus and Trichocereus pasacana are often recommended for colder climates.  Scions grafted on Trichocereus might initially take slightly longer to begin their growth burst (when compared to other grafting stocks), but usually have a very good life span of steady fast growth.

What Makes a Good Grafting Stock

The best grafting stock is one which has very little surface distortion upon drying, has lots of gooey juice upon cutting, cuts relatively easily and has fast healthy growing roots.  Ideally the cut tissue should be in an area of active growth, not older winter dormant growth or old cutting growth.  The grafting stock should be free of disease, bugs and viruses which can show up as discolorations or spots on the surface.  The base of the stock should be firm and not wobbly, otherwise temporary staking may be required depending on the size and type of scion you are attaching to the grafting stock.


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InvisibleEbb
Rasta Pasta,with mushrooms
Male

Registered: 07/31/06
Posts: 133
Loc: in your cochlea
Re: cactus I.D./pictures [Re: Dety]
    #5954408 - 08/11/06 04:40 PM (17 years, 5 months ago)

wow ^


--------------------
I'm not foreign so don't hang up on me.
:crankey:


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