Page 1 of 2
Ritter's colour descriptions
Posted: Tue May 04, 2021 10:55 am
by Paul D
In some of Friedrich Ritter's plant descriptions in Latin, he mentions colour numbers. For example in the description of Rebutia rutiliflora he says "colore 4 ad 5" (colours 4 to 5) but I can't see a reference to what colours 4 and 5 are- can anyone advise?
Re: Ritter's colour descriptions
Posted: Tue May 04, 2021 11:13 am
by FredG
Possibly the RHS Colour Chart? It appears to be an accepted standard for Botanists worldwide
Re: Ritter's colour descriptions
Posted: Tue May 04, 2021 11:41 am
by iann
RHS "numbers" also have a letter. Even ignoring the letters, the difference between shades 5 and 6 is almost imperceptible. They are shades of yellow, although not the orange-yellow shades I'd have thought would be used for Rebutia rutiliflora. My guess is these numbers are something else.
Re: Ritter's colour descriptions
Posted: Tue May 04, 2021 12:44 pm
by Paul D
iann wrote: ↑Tue May 04, 2021 11:41 am
RHS "numbers" also have a letter. Even ignoring the letters, the difference between shades 5 and 6 is almost imperceptible. They are shades of yellow, although not the orange-yellow shades I'd have thought would be used for Rebutia rutiliflora. My guess is these numbers are something else.
That's what I thought Ian. Wondered if there was a German equivalent?
Re: Ritter's colour descriptions
Posted: Tue May 04, 2021 1:34 pm
by Detlev
Ritter used the colour chart of E. Biesalski: "Pflanzenfarben-Atlas", which was published in 1957. The colour chart is based on the German standard DIN 6164.
Unfortunately it is no longer available. I got my copy many years ago from an old cactus friend.
Once it was offered by Schwarz, but now it is sold out there, too:
https://www.kakteen-schwarz.de/content/ ... ch&id=1032
Re: Ritter's colour descriptions Solved
Posted: Tue May 04, 2021 2:06 pm
by Paul D
Detlev wrote: ↑Tue May 04, 2021 1:34 pm
Ritter used the colour chart of E. Biesalski: "Pflanzenfarben-Atlas", which was published in 1957. The colour chart is based on the German standard DIN 6164.
Unfortunately it is no longer available. I got my copy many years ago from an old cactus friend.
Once it was offered by Schwarz, but now it is sold out there, too:
https://www.kakteen-schwarz.de/content/ ... ch&id=1032
Aha! There is the answer. Thankyou!
I found an online version here
https://dtpstudio.de/atlas/farbsysteme/ ... bs00_3.htm
Re: Ritter's colour descriptions
Posted: Tue May 04, 2021 11:35 pm
by Detlev
Good tip, I didn't know that webpage yet.
Re: Ritter's colour descriptions
Posted: Wed May 05, 2021 7:55 am
by FredG
Nice find.
So what is colore 4 ad 5 ?
Re: Ritter's colour descriptions
Posted: Wed May 05, 2021 8:47 am
by anders
Ritter described them in Kakteen in Südamerika, vol. 1 as 4 = golden yellow, 5 = orange red.
Re: Ritter's colour descriptions
Posted: Wed May 05, 2021 9:48 am
by Paul D
FredG wrote: ↑Wed May 05, 2021 7:55 am
Nice find.
So what is colore 4 ad 5 ?
There is also this colour wheel. Though it has been blown up from a tiny pic, and I don't think is a reliable guide to the colours! Imagine it brighter.
If anyone ever has one of these colour guide atlases to sell, please let me know.