Arisaema yunnanensis

iain@auchgourishbotanicgarden.org info@auchgourishbotanicgarden.org
Fri, 29 Jan 2010 03:01:54 PST
Mr. McDonough inrespone to your posting with respect to Arisaema yunnanense 
and some possible ambiguity over colours, etc.
I have the first edition of Mr & Mrs Gusman's Arisaema monograph so looked 
up the description for you on page 392, as follows:-

A. yunnanense  Buchet in Lecomte, Notul. Syst. 1. (12) p.367 (1911)

Deciduous up to 50 cms tall and 25 cm wide. Subglobuse tuber 1.5 - 4.0 cm 
wide
Roots few slightly woody and branched.
Pseudostem to 35 cm long, Green
Cataphylls 2 or 3, 2-30 cm long, thin and brown striped
Petiole 10-20 cm long, pale green or purplish
Leaf. one trifoliate held at 80 degrees
Leaflets three, broadly lanceolate plain green above, sometimes variegated,
underside glaucus, apex acute or acuminate, margins entire.
Central leaflet is the largest segment, 10-25 cm long, 2-12 cm wide,
subsessile or with a petiolule to 1.5 cm,
Lateral leaflets smaller, slightly asymmetric, sessile.
Flower emerges after the leaf unfolds, flowering at leaf level or above.
Petiole 2 12-30 cm long, green or pinkish,
Spathe tube cylindrical 3-6 cm long, 1-3 cm wide, colour yellowish green, 
white striped, yellow when fading.

If you need any more detail extracted, there's about as much again, feel 
free to get in touch.
As we progress the Arisaema collection here, several taxa have proved to be 
hardy than has been suggested,
coping down to - 15 C to - 25 C for prolonged periods it is maybe a 
question, as with Lilium etc,
that perfect drainage is of paramount importance. I try two or three new 
taxa most years and had few losses so far.

I hope the above helps, best wishes,

Iain. Auchgourish Botanic Garden











----- Original Message ----- 
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Sent: Thursday, January 28, 2010 6:21 PM
Subject: pbs Digest, Vol 84, Issue 30


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> Today's Topics:
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>   1. Re: The daffodil show continues (totototo@telus.net)
>   2. Spontaneous seed set on Hippeastrum (Nolo Contendere)
>   3. Re: Spontaneous seed set on Hippeastrum (Adam Fikso)
>   4. Re: Arisaema yunnanense (Mark McDonough)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 27 Jan 2010 10:26:51 -0800
> From: totototo@telus.net
> Subject: Re: [pbs] The daffodil show continues
> To: Pacific Bulb Society <pbs@lists.ibiblio.org>
> Message-ID: <4B6014EB.4280.2658C6B@localhost>
> Content-Type: text/plain; charset=ISO-8859-1
>
> On 26 Jan 2010, at 20:47, Jim McKenney wrote:
>
>> I need help with Narcissus nomenclature. Narcissus cantabricus is 
>> apparently
>> still regarded as a good species, but N. albidus is not. Both N. 
>> cantabricus and
>> N. albidus have varieties named foliosus. Are the plants once called 
>> Narcissus
>> albidus now considered to be forms of N. cantabricus? And if so and 
>> assuming the
>> two varieties named foliosus are distinct, what are these two varieties
>> currently being called? It?s all very confusing to me. The plant I have 
>> under
>> cantabricus foliosus bloomed over a month ago; the one under albidus 
>> foliosus is
>> just starting.
>
> We all need help with Narcissus nomenclature, especially among the 
> bulbocodium
> persuasion. My understanding is that Narcissus bulbocodium (sensu _very_ 
> latu)
> is actively speciating in Spain, Portugal, and northern Africa. Hence it 
> may be
> a fool's errand to try to pigeonhole these plants into neat, clearly 
> defined
> species. It's quite possible that all bulbocodium Narcissus can viewed as 
> a
> single polymorphic species, though I don't think any botanist has yet 
> tried
> this approach.
>
> My best advice to those bedevilled by N. bulbocodium nomenclature is to 
> have a
> stiff drink and find some other subject to worry about. It's the only way 
> to
> preserve one's sanity.
>
>
> -- 
> Rodger Whitlock
> Victoria, British Columbia, Canada
> Maritime Zone 8, a cool Mediterranean climate
> on beautiful Vancouver Island
>
> http://maps.google.ca/maps/…
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 27 Jan 2010 18:05:20 -0500
> From: Nolo Contendere <bulbman@hotmail.com>
> Subject: [pbs] Spontaneous seed set on Hippeastrum
> To: pbs@lists.ibiblio.org
> Message-ID: <BLU0-SMTP96D657B0E6373B1C48608AB45D0@phx.gbl>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Dennis,
>
> Tetraploid (2n = 44 chromosomes) hippeastrum hybrids and those few
> tetraploid spp., frequently self pollinate and set seed.  The
> self-incompatability of deiploid amaryllis breaks down when the
> chromosomes are doubled.
>
> Alan Meerow
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 27 Jan 2010 18:00:06 -0600
> From: "Adam Fikso" <adam14113@ameritech.net>
> Subject: Re: [pbs] Spontaneous seed set on Hippeastrum
> To: "Pacific Bulb Society" <pbs@lists.ibiblio.org>
> Message-ID: <C3FDCDBDAE6A4AAE84FB87CFA18F32A7@FAMILY>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> INTERESTING INFORMATION, ALAN.  Thanks for paying attention here.  Is this
> kind of thing common among tetraploid forms of natural diploid liliaceous
> plants? , e.g. irises.  It doesn't seem to happen among tetraploid bearded
> irises or their hybrids.  Adam
>
> .
> ----- Original Message ----- 
> From: "Nolo Contendere" <bulbman@hotmail.com>
> To: <pbs@lists.ibiblio.org>
> Sent: Wednesday, January 27, 2010 5:05 PM
> Subject: [pbs] Spontaneous seed set on Hippeastrum
>
>
>> Dennis,
>>
>> Tetraploid (2n = 44 chromosomes) hippeastrum hybrids and those few
>> tetraploid spp., frequently self pollinate and set seed.  The
>> self-incompatability of deiploid amaryllis breaks down when the
>> chromosomes are doubled.
>>
>> Alan Meerow
>> _______________________________________________
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>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 27 Jan 2010 16:14:44 -0800
> From: Mark McDonough <antennaria@charter.net>
> Subject: Re: [pbs] Arisaema yunnanense
> To: pbs@lists.ibiblio.org
> Message-ID: <20100127191444.OFRNT.330942.root@mp08>
> Content-Type: text/plain; charset=utf-8
>
> My seed of Arisaema yunnanense came from Vlastimil Pilous 2008-2009 seed 
> (no slamming me on this please).
>
> Collection info: Lijang, Yunnan, China, pale yellow,  open places.
>
> This has me curious, as Dan Hinkley in his book says about A. yunnanense 
> "a rather unremarkable species" and "a trifoliate species with stems to 18 
> in. (45 cm) and small green and white striped spathes surrounding short 
> spadices".  That sounds quite different than "pale yellow".  I don't have 
> Gusman's arisaema book to reference this any further.
>
> Mark McDonough
> Massachusetts, USA, near the New Hampshire border, USDA Zone 5
> antennaria@charter.net
> http://www.plantbuzz.com/
>
>
> ------------------------------
>
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