IDs Needed - Trying to get my collection tagged.

[Vipassana]

Between handouts at the local C&S meetings and my very bad habit of cruising the clearance racks at the local big-box stores (Altman Plants mislabels abound!), I've picked up quite a few unknown plants. Since I had today free, I thought I'd try to get some identified and tagged.

#1: Was told it made large fruits. Ribs are very thin.




#2: Gymnocalycium mihanovichii is my guess...


#3: Chamaelobivia of some sort...


#4: Mammillaria... that narrows it down to ~170 types. Large spines point upwards.


#5: Mammillaria... Large spines point upwards and outwards.


#6: Mammillaria... Hooked spines, aggressive pup formation at the base.


#7: Notocactus uebelmannianus is my guess based on others I've seen that look similar. It's in a 7.5" pot to get an idea of size. Rescued from Walmart for $7. The buds sold me on it.


#8: No clue on this guy. He is missing spines on half. I cannot tell if they were removed very meticulously or if he has some genetic abnormality? There re very small ones on the bald side here and there. I suppose we'll see as he grows larger.

[Kamos]

#4 Mammillaria matudae
#6 Mammillaria bombycina.

[Vipassana]

Awesome. Those look to be correct, thank you. Do you think #5 could be a M. Matudae as well. They look somewhat similar.

[Carl_B]

First photo is a Hylocereus sp. probably Hylocereus undatus but your have to wait until it flowers for confirmation.

[Kamos]

Your ids on the other ones look correct to me. I'd say the last one is Mammillaria something. . Sorry I can't be more help.

[king_hedes]

Is the first one Acanthocereus tetragonus
http://cactiguide.com/cactus/?genus=Aca ... tetragonus" onclick="window.open(this.href);return false;
I have a bunch that look like that and i believe they are Acanthocereus tetragonus
mine have never flowered tho

[teo]

#8 - might be Mammillaria polythele (inermis?)

[Carl_B]

Is the first one Acanthocereus tetragonus
http://cactiguide.com/cactus/?genus=Aca ... tetragonus" onclick="window.open(this.href);return false;
I have a bunch that look like that and i believe they are Acanthocereus tetragonus
mine have never flowered tho

Actually now you mention it...

[jfabiao]

#5 seems to be one of the countless forms of Mammillaria haageana.
#7 seems to be either N. uebelmannianus (Parodia werneri) or N. crassigibbus (Parodia crassigibba). Flower colour will tell, violet for the former and yellow for the latter.

[Vipassana]

Thank you so much for the help, everyone. The last one is still a bit of a mystery I think. Especially the strange baldness.