The Alocasia account for the Flora of Thailandwill be in press by year end and should be published sometime first quarter2010. There is a precursor paper: A review of Alocasia (Araceae:Colocasieae) for Thailand including a novel species and new species=E2=80=99 recordsfrom S.W. Thailand. Thai For. Bull. (Bot.) 36: 1 =E2=80=93 17 (2008) but unfortunatelyI have no reprints as yet.
I should have said that the =E2=80=98pair=E2=80=99 of inflorescences isan average; the important thing is actually the displacement, giving the inflorescencemodules an leaf-axillary appearance.
Thanks for the offer of assistance with our freshwater crustaceanqueries; what we really need at the moment is a coleopteran taxonomist to helpus with naming the beetles that we are trying to identify!
Very best
Peter
From: aroid-l-bounces@gizmoworks.com[mailto:aroid-l-bounces@gizmoworks.com] On Behalf Of Christopher Rogers
Sent: 12 August 2009 01:58
To: 'Discussion of aroids'
Subject: Re: [Aroid-l] Alocaisa gageana
Fascinating!
Thanks, Peter! So, obviously I had a few things confused.I am glad to know you are working on the group, and I hope that I can get areprint when you publish.
You said that these plants send up a pair of inflorescences.My A. odora and my A. macrorrhizos have sent up single inflorescences, pairedand sometimes three inflorescences. Am I seeing something different, or couldthis be ecophenotypic variation?
I really enjoy the genus Alocasia, and I do want to learnall I can about the taxonomy. I appreciate your help, and if you ever need anyhelp with freshwater crustacean taxonomy, let me know. I be happy to return thefavor!
Thanks for the help!
Christopher
D. Christopher Rogers
Senior Invertebrate Ecologist/ Taxonomist
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ECOANALYSTS, INC.
1.530.383.4798
P.O. Box 4098
Davis, CA 95616
USA
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-----Original Message-----
From: aroid-l-bounces@gizmoworks.com[mailto:aroid-l-bounces@gizmoworks.com] On Behalf Of Peter Boyce
Sent: Sunday, August 09, 2009 11:53 PM
To: 'Discussion of aroids'
Subject: Re: [Aroid-l] Alocaisa gageana
Hi Christopher,
These trans-Himalayan large-leaved Alocasia are taxonomicbeasts! I=E2=80=99ve
recently tackled the northern Thai species and this isthe current status
for those that I investigated.
What you describe as gageana is almost certainly odora;also it is very
likely that gageana is a syn. of odora BUT the type (ofgageana) is missing
(presumed desctroyed) from Berlin and Engler=E2=80=99sdescription is too incomplete
to pin the name.
What you have as odora (yellow spathe) is definitely A.navicularis.
Alocasia macrorrhizos is almost certainly OK, but spathecolour is very
variable, from white, pinkish, purplish, and =E2=80=98yellow=E2=80=99(actually somewhat
cream).
All of these species produce pairs of inflorescencesarising in the leaf
axil (actually terminal on a branching module and thendisplaced by a new
leaf and thus appearing axillary.
Other names for the transhimalaya in this=E2=80=98macrorrhizos/odora=E2=80=99 complex are:
Alocasia cadieri Chantrier, Rev. Hort. 26: 326 (1939)
Alocasia cochinchensis, Pierre ex Engl. & K.KrausePflanzenr., IV, 23E: 103
(1920)
Alocasia decipiens Schott, Bonplandia (Hannover) 7: 28(1859)
Alocasia decumbens Buchet, Bull. Mus. Natl. Hist. Nat.,II, 11: 417 (1939)
Alocasia evrardii Gagnep., Fl. Indo-Chine 6: 1150 (1942)
Alocasia fallax Schott, Bonplandia (Hannover) 7: 28(1859)
Alocasia fornicata (Roxb.) Schott, Oesterr. Bot.Wochenbl. 4: 410 (1854)
Alocasia grandis Clemenc., Rev. Hort. 1868: 380 (1868)
Alocasia grata Prain ex Engl. & Krause, Pflanzenr.,IV, 23E: 93 (1920)
Alocasia hainanensis K.Krause, Pflanzenr., IV, 23E: 91(1920)
Alocasia hainanica N.E.Br., J. Linn. Soc., Bot. 36: 183(1903)
Alocasia lecomtei Engl., Pflanzenr., IV, 23E: 90 (1920)
Alocasia liervalii H=C3=A9rincq, Hort. Franc.: 243 (1869)
Alocasia longifolia Engl. & K.Krause, Pflanzenr., IV,23E: 103 (1920)
Alocasia montana (Roxb.) Schott, Oesterr. Bot. Wochenbl.4: 410 (1854) -
almost certainly the correct name for A. hynosa
Alocasia putii Gagnep., Fl. Indo-Chine 6: 1150 (1942)
Alocasia tonkinensis Engl., Pflanzenr., IV, 23E: 91(1920)
A LOT to do!
Alocasia robusta produces clusters of up to 20inflorescences in the
=E2=80=98middle=E2=80=99 of the plant, with the entire cluster then=E2=80=98pierced=E2=80=99 by the newly
emerging leaf, and is not part of the above complex,being closest to A.
puber, A. sarawakensis, etc.
Cheers
Peter
From: aroid-l-bounces@gizmoworks.com[mailto:aroid-l-bounces@gizmoworks.com]
On Behalf Of Christopher Rogers
Sent: 10 August 2009 03:40
To: Discussion of aroids
Subject: Re: [Aroid-l] Alocaisa gageana
Howdy, Pete!
I thought I had a handle on the large green, entire leafmargin Alocasia. My
understanding was that A. gageana had a green erectspathe, leaf sinus
reaching petiole; A. odora has a yellow erect spathe,and; A. macrorhiza had
a reflexed yellow spathe, with the leaf sinus notreaching the petiole. I am
not sure how A. robusta is separated out. So, I amsurprised to hear that A.
gageana is a nomen dubium. Can you help me out onseparating these beasts?
Cheers,
Christopher
D. Christopher Rogers
Invertebrate Ecologist
Telephone: 530.383.4798
EcoAnalysts, Inc.
PO Box 4098
Davis, CA 95616
USA
________________________________________
From: aroid-l-bounces@gizmoworks.com on behalf of PeterBoyce
Sent: Sat 08-Aug-09 6:58 PM
To: 'Discussion of aroids'
Subject: Re: [Aroid-l] Alocaisa gageana
Hi Barbara
This will be almost certainly Alocasia macrorrhizos inone of its numerous
colour forms. Alocasia gageana was described fromnorthern Burma and is an
nom. dub.
Peter
From: aroid-l-bounces@gizmoworks.com[mailto:aroid-l-bounces@gizmoworks.com]
On Behalf Of Barbara
Sent: 07 August 2009 05:28
To: aroid-l@gizmoworks.com
Subject: [Aroid-l] Alocaisa gageana
I purchased a plant labeled as Alocasia gageana aureavariegata but think I
read somewhere that aurea is not the proper name. I did asearch on the
Aroidean but did not find the correct name. I am a novicebut would like to
make sure the names are correct. I would appreciate anyhelp.
Barbara
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