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by DaveW
Fri Feb 16, 2018 1:23 pm
Forum: The Cactus & Succulent Plant Forum
Topic: New to me?
Replies: 4
Views: 212

New to me?

Found these references to a book I had not come across before whilst browsing the web.

http://www.hatandbeard.com/product/xerophile

https://www.kcet.org/shows/earth-focus/ ... -explorers
by DaveW
Fri Feb 16, 2018 1:01 pm
Forum: The Cactus & Succulent Plant Forum
Topic: What are Species?
Replies: 11
Views: 683

Re: What are Species?

Found this whilst browsing the web:-

https://news.azpm.org/p/news-articles/2 ... -classify/
by DaveW
Wed Feb 14, 2018 10:58 am
Forum: The Cactus & Succulent Plant Forum
Topic: Help with a project
Replies: 10
Views: 431

Re: Help with a project

Acid John wrote:- "I am a little confused by the survey. Why does it say 'the cacti collectors are the cause of the problem'? No mention of environmental or people population growth." The problem John is most of these supposed authoritative surveys are done by Government institution employ...
by DaveW
Thu Feb 08, 2018 1:43 pm
Forum: The Cactus & Succulent Plant Forum
Topic: What are Species?
Replies: 11
Views: 683

Re: What are Species?

It was always suggested that some present genera could have arisen from hybridisation in the distant past, so could some species. I suppose you have to define a hybrid in terms of evolution anyway? To me the simple way would be a cross between any two plants not normally or having previously occurre...
by DaveW
Wed Feb 07, 2018 4:55 pm
Forum: The Cactus & Succulent Plant Forum
Topic: What are Species?
Replies: 11
Views: 683

Re: What are Species?

The advantage of splitting I suppose it is easier to move the forms around from one genus to another, or if genera, from one line of evolution to another if found to be non related by DNA Sequencing. The "lumpers" seem to want to solve their problem by simply using collection numbers for e...
by DaveW
Sun Feb 04, 2018 12:38 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Greenhouse advice for newbie
Replies: 13
Views: 674

Re: Greenhouse advice for newbie

When I was an apprentice I had to carry half a dozen 3' x 2' concrete slabs weighing about one and a half hundred weight each = 12 stone, and at 16 I was only just over 9 stone at the time. I had to take them from the road where the lorry dropped them up four steps and then uphill about 60ft to the ...
by DaveW
Thu Feb 01, 2018 5:54 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Schlumbergera
Replies: 5
Views: 308

Re: Schlumbergera

They are usually a bit more tender than the hybrids which is why the hybrids have survived but the species were often lost, I got a start of both authentic S. truncata and S. russeliana from Seedlings and Cuttings.eu. You may have to wait until the growing season starts though. http://seedlingsandcu...
by DaveW
Thu Feb 01, 2018 1:06 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Christmas cactus confusion
Replies: 6
Views: 332

Re: Christmas cactus confusion

Just let it do what it wants as it will eventually revert to it's normal flowering cycle if not being abnormally forced. That is unless you want to flower it out of season. Don't worry about it if it is growing well and flowering you are doing something right. http://www.telegraph.co.uk/gardening/ho...
by DaveW
Wed Jan 31, 2018 5:10 pm
Forum: The Cactus & Succulent Plant Forum
Topic: What are Species?
Replies: 11
Views: 683

Re: What are Species?

I think botany only really adopted subspecies rather than the previous use of variety in order to fall in line with zoology. However variety is still a legal rank in botany I believe, it has simply become a fashion to change them all to subspecies, and botanists are just as subject to fashion as any...
by DaveW
Wed Jan 31, 2018 12:12 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Christmas cactus confusion
Replies: 6
Views: 332

Re: Christmas cactus confusion

The American's call them Holiday Cactus since they flower at their different holidays. Yours is not the proper Christmas Cactus, which is Schlumbergera X 'Buckleyi', though it often gets wrongly named as such as that is an early hybrid between S. truncata and S. russeliana, having rounded ends to th...

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