International Aroid Society

Also change family, I believe you meant familiar??

Susan B

From: Marek Argent <abri1973@wp.pl>
To: Discussion of aroids www.gizmoworks.com>
Sent: Fri, November 26, 2010 5:19:44 PM
Subject: Re: [Aroid-l] Zamioculcas zamiifolia

=0A=0A =0A =0A=0A=0A

Dear Steve,

=0A

I can only guess that they call rhachis the part of =0Athe leaf with leaflets, as they describe that the petiole is 15-35 cm long. =0AMy plant's total leaf length is up to 120 cm. So possibly the petiole is the =0Athick part without leaflets and the rhachis is the rest of the =0Aleaf.

=0A

Look here: http://www.thefreedictionary.com/rachis

=0A

"Botany the main axis or stem of an inflorescence =0Aor compound leaf"

=0A

In your page I would rather change "Philodendron" =0Ato "Amorphophallus" - a majority of the amateur growers of Amorphophallus =0Acall the petiole "stem"..

=0A

Although growers that are =0Afamily with plants such as a Philodendron would likely call the petiole =0Athe "stem", in the case of this species the true stem is an underground =0Arhizome(...)

=0A

Best,

=0A

Marek

=0A

=0A
----- Original Message -----
=0A
From: =0A Steve Lucas/Exotic Rainforest.com =0A
=0A
To: Discussion of Aroids
=0A
Sent: Tuesday, November 23, 2010 8:42 =0A PM
=0A
Subject: [Aroid-l] Zamioculcas =0A zamiifolia
=0A

I addressed this to Anna Haigh at the Kew but I welcome input =0A from anyone familiar with this plant. I continue to receive mail from =0A folks telling me the page is wrong no matter how I describe the central stalk =0A that supports the leaflets which are on short petiolules.

Anna, can you =0A pass this along to someone that can give me an accurate answer?

I have =0A revised my page on Zamioculcas zamiifolia several times over whether or =0A not the plant's central stalk is a petiole or a or a rachis and the leaflets =0A are petiolulate. I found this on cate this morning and it appears it has =0A both but I can't discern which is which.

http://www.exoticrainforest.com/Zamioculcas%20zamiifolia%20pc.html

=0A
Zamioculcas zamiifolia =0A (Lodd.) Engl. sec CATE Araceae, 2009
Tuber subcylindric, =C2=B1 3-4 cm. =0A in diameter or more, tough, woody. LEAVES: Petiole green with darker =0A transverse blotches, 15-35 cm. long, 1-2 cm. in diameter near base; blade =0A 20-40 cm. long; leaflets 4-8 per side, subopposite, distant, oblong-ovate to =0A -elliptic to -obovate, sometimes oblanceolate, fleshy, dark glossy green, 5-15 =0A cm. long, 1.5-5 cm. broad, shortly acuminate, sessile or shortly petiolulate, =0A articulated to rhachis, cuneate to rounded basally; rhachis terete, marked =0A like petiole.

Will you take a look at the page or ask =0A someone that is knowledgeable about the plant to tell me exactly where the =0A rachis and petiole differ?

All the rest of the material was taken from =0A Pete, Simon and Josef's text The Genera of Araceaa and despite the fact =0A growers argue with me all the time I will take their word over that of any =0A grower that believes this plant should b grown dry. It does grow in dry =0A conditions part of the year, but it is not a desert species!

Thanks a =0A bunch!

Steve Lucas
www.ExoticRainforet.com

=0A
=0A
=0A=0A
_______________________________________________
Aroid-L mailing =0A list
Aroid-L@www.gizmoworks.com
http://www.gizmoworks.com/mailman/listinfo/aroid-l
=0A
=0A
=0A=0A
=0A
Nie znaleziono wirus=C3=B3w w tej =0A wiadomo=C5=9Bci.
Sprawdzone przez AVG - www.avg.com
Wersja: 10.0.1170 / Baza danych =0A wirus=C3=B3w: 426/3280 - Data wydania: 2010-11-25

=0A