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Re: Sansevieria trifasciata Forescate

Dear Ben,

You forgot to mention your widely known studies in Sempervivum.

The mutability of Sansevieria trifasciata 'Forescate' has previously been
mentioned in this forum but had mostly gone unnoticed. Thank you for
providing the valuable information on the cytological basis for the
variegation and mutability. You've finally made Hermine a believer.

There has been mention also of tetraploid cell layers in Sans. trifasciata
'Laurentii' in Chahinian (1993).

In a previous posting, the little known Sansevieria fasciata was compared
with the widely grown Sansevieria trifasciata. 'Forescate' is one the many
variegated cultivars of Sans trifasciata.

Cereusly Steve

Sansevieria trifasciata 'Forescate' Chahinian, The Sansevieria Trifasciata
Varieties 57, fig. (1986)
syn. Sansevieria trifasciata var. laurentii "forescate" Morgenstern,
Sansevierias 81, fig. 117 (1979)

Here are publications on variegation in Sansevieria by Juan Chahinian that
you may find useful as references.

Chahinian, B.J. (1985) THE SANSEVIERIA TRIFASCIATA DWARF CULTIVARS: A
BEGINNING WITH NO END. Cact. & Succ. Journ., Amer. 57 (5): 199-203, 5 figs.

Chahinian, B. J. (1986) THE SANSEVIERIA TRIFASCIATA VARIETIES. Trans Terra.
Resenda, California.

Chahinian, B.J. (1992-1994) THE VARIEGATED CORNER. The Sansevieria Journal
1 (1): 14-15 (1992); 1 (2): 29-31 (1992); 1 (3): 53-55 (1992); 1 (4): 75-77
(1992); 2 (1): 21-23 (1993); 2 (2): 46-47 (1993); 2 (3): 70-71 (1993); 2
(4): 92-93 (1993); 3 (1): 22-23 (1994); 3 (2): 46-47 (1994).

Chahinian, B.J. (1993) VARIEGATION IN CULTIVATED SANSEVIERIAS. Haseltonia
1: 45-54, 14 figs.

Chahinian, B.J. (1999) VARIEGATED SANSEVIERIAS. Cactus & Co. 3 (1): 43-47;
3 (2): 66-69, 17 figs.

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•Subject: Sansevieria fasciata Forescate
•From: zonneveld
•Date: Wed, 3 Nov 1999 09:31:58
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A short introduction: I am 59, married, 3 children. geneticist, working
with yeast and aspergillus for 30 years Now into plants genetics,
succulents and hosta to mention a few and of course some sansevieria.

I have a large plant of S trifsciata Forescate

It is a plant were clearly the three layers, as present in each
Sanseveria can be seen The L1 is green , the L2 is yellow and the L3
shimmering
through is green again The nice thing is that, whereas the L2/L3 are
diploid the green edge the L1 is hexaploid ie has 3 times as much DNA
What I really wanted to tell was the following: I planted
leafcuttings of this plant. The first new shoot is yellow, but will
likely die when detached. The second one obtained was green. During a
student course I gave them the plant. With help of a flowcytometer
they found the green sprout to be diploid. So now we have a yellow
sprout from the L2 and a green sprout from the L3 showing that both
layers can lead to new sprouts Of course not much statistics can be done
here. Has any of you planted a leafcutting of Forescate?
Ben J.M.Zonneveld
Clusius lab pobox 9505
2300 RA Leiden
The Netherlands
Zonneveld@RULbim.LeidenUniv.NL
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