Search found 1306 matches

by mmcavall
Tue May 31, 2022 7:13 pm
Forum: Member Blogs
Topic: My greenhouse and plants
Replies: 160
Views: 54114

Re: My greenhouse and plants

I found both of these Matucana madisoniorum sitting amongst a tray of gymno's at a home depot. At the time they were spineless, but I knew they were not gymno's. 6 month later the long black spines and flowers like yours. They have almost doubled in size since I acquired them. 20220525_140808.jpg 2...
by mmcavall
Tue May 31, 2022 7:11 pm
Forum: Cuttings & Offsets
Topic: Rooting a mammillaria from a top cut
Replies: 44
Views: 4553

Re: Rooting a mammillaria from a top cut

It will take more than 5 weeks to show new roots. I agree with the sugestion of indirec light. But I use to spray some water in the superior part of the plant. It may absorb something. I read that adding magnesium sulfate to the water would help the plant (I have tested it but its is hard to tell th...
by mmcavall
Tue May 31, 2022 12:46 pm
Forum: Cacti Identification
Topic: Rebutia neocumingii / Weingartia ???
Replies: 5
Views: 343

Re: Rebutia neocumingii / Weingartia ???

Thank you anttisepp Yes... it is weird to call it a Rebutia... but I dont have any arguments beyond the overall look... Usually when I dont have arguments I follow the "mainstream" (ex. check in the Tropicos Database for names and synonims). But I think I will not manage to call it a Rebut...
by mmcavall
Tue May 31, 2022 12:03 pm
Forum: Clubs and Events
Topic: seminar about rhizosphere microbiomes of desert plants
Replies: 0
Views: 221

seminar about rhizosphere microbiomes of desert plants

I have just received this, maybe it is of interest for other members too: "Dear All, We are pleased to announce our next seminar as part of our monthly series. On Thursday, June 2 (12:00 hrs, GMT -5), Dr. Joel Colchado López (MX) will be talking about rhizosphere microbiomes of desert plants (S...
by mmcavall
Tue May 31, 2022 11:52 am
Forum: Cacti Identification
Topic: Rebutia neocumingii / Weingartia ???
Replies: 5
Views: 343

Rebutia neocumingii / Weingartia ???

LLIFLE says: " All the 60 species of genus Weingartia have been transferred to synonymy status under the genus Rebutia; about 45 or so of them as synonyms of two species, Rebutia canigueralii and Rebutia neocumingii." So probably calling this plant "Rebutia neocumingii" would be ...
by mmcavall
Sat May 28, 2022 10:20 pm
Forum: Cacti Identification
Topic: Identifying my Gymnos
Replies: 9
Views: 918

Re: Identifying my Gymnos

Can anyone confirm that the plant #560 is indeed Gymnocalycium albiareolatum, now that I have a picture of the flowers? Or would it be a variation of G. quehlianum? Spines make me confused. Thanks! IMG_20211015_161707411_HDR_copy_768x1024.jpg IMG_20211015_161719310_HDR_copy_768x1024.jpg Looks like ...
by mmcavall
Sat May 28, 2022 10:16 pm
Forum: Member Blogs
Topic: My modest collection
Replies: 137
Views: 6947

Re: My modest collection

Wow!
by mmcavall
Thu May 26, 2022 11:01 pm
Forum: Cacti Identification
Topic: ID request
Replies: 3
Views: 305

Re: ID request

I would say Gymno monvillei subs horridispinum
by mmcavall
Wed May 25, 2022 10:09 pm
Forum: Cacti Identification
Topic: Identifying my Gymnos
Replies: 9
Views: 918

Re: Identifying my Gymnos

Can anyone confirm that the plant #560 is indeed Gymnocalycium albiareolatum, now that I have a picture of the flowers?

Or would it be a variation of G. quehlianum? Spines make me confused.

Thanks!
IMG_20211015_161707411_HDR_copy_768x1024.jpg
IMG_20211015_161707411_HDR_copy_768x1024.jpg (106.77 KiB) Viewed 503 times
IMG_20211015_161719310_HDR_copy_768x1024.jpg
IMG_20211015_161719310_HDR_copy_768x1024.jpg (106.03 KiB) Viewed 502 times
by mmcavall
Wed May 25, 2022 5:41 pm
Forum: Sick Cacti - Pests, Diseases, etc.
Topic: Is this terminal?
Replies: 6
Views: 328

Re: Is this terminal?

I believe it can recover. They get red-brown sometimes.
by mmcavall
Wed May 25, 2022 5:00 pm
Forum: Member Blogs
Topic: My greenhouse and plants
Replies: 160
Views: 54114

Re: My greenhouse and plants

Back in your Nov 2016 pics, you have a Pilosocereus pachycladus mistakenly labeled as Pachycereus pachycladus. Your plants must look great now 5 years later. Some pics? Shmuel Jerusalem Israel Zone 9 Yes, sure, thanks for the correction, it is for sure a Pilosocereus. In fact I have 3 different Pil...
by mmcavall
Wed May 25, 2022 12:52 am
Forum: Member Blogs
Topic: My modest collection
Replies: 137
Views: 6947

Re: My modest collection

Yeah...not sure it is a good idea to re-bury it again...I think it is risky.
by mmcavall
Tue May 24, 2022 7:13 pm
Forum: Member Blogs
Topic: My modest collection
Replies: 137
Views: 6947

Re: My modest collection

From Llifle (that is not 100% reliable), for E. tulearensis : "Caudex exposure: The remarkable tuberous rootstock (caudex) is usually raised above the soil line so that this can be seen and more readily appreciated. The plants raised from cuttings produce a bunch of tangled tuberose roots, whil...
by mmcavall
Mon May 23, 2022 5:40 pm
Forum: Member Blogs
Topic: My modest collection
Replies: 137
Views: 6947

Re: My modest collection

Its said that they will grow bigger caudexes when they are buried. Once they are exposed, they stop growing...Mine is buried and I know it is becoming fat...I'll wait some years more before exposing it.
by mmcavall
Mon May 23, 2022 5:24 pm
Forum: Cultivation
Topic: What dictates the flowersize?
Replies: 7
Views: 302

Re: What dictates the flowersize?

In principle I would'nt agree with Antitsepp but I can be wrong. Dimensions and characteristics of sexual parts of a given taxa are usually more stable than vegetative parts. For example, a plant in the shade can display larger leaves when compared to its sibbilings that are growing in full sun, but...