----- Original Message -----
Sent: Tuesday=2C November 22=2C 2011 10:18 AM
Subject: Re: [Aroid-l] Adelonema
There a quite some =93shared=94 clades for this trans ecozone distribution:
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The =91obvious=92 ones are the Schismatoglottis Alliance [Philonotion][Cryptocoryneae+Schismatoglottideeae]
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The Monsteroideae (with notably Rhaphidophora in W Africa=2C and IndoMalaya)
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The Lasioids=2C especially Anaphyllopsis (Neotropics) Lasimorpha (W Africa)=2C Anaphyllum (India)=2C Lasia/Cyrtosperma/Podolasia (Asian tropics)
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The extraordinary Nephthytis in West Africa &=3B N Borneo
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More subtly Aglaonema/Aglaodorum (Asian tropics) is compellingly linked to almost wholly African Nephthytideae.
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The most =91complete=92 clade is in American Journal of Botany 98(4)=2C 654=96668] - Cusimano et al 2011.pdf
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Peter
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From: aroid-l-bounces@www.gizmoworks.com [mailto:aroid-l-bounces@www.gizmoworks.com] On Behalf Of Christopher Rogers
Sent: Tuesday=2C 22 November=2C 2011 1:58 AM
To: Discussion of aroids
Subject: Re: [Aroid-l] Adelonema
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Thank you=2C Peter and Tom!
So=2C thinking biogeographically=2C am I understanding you correctly that Adelonema and Homalomena are sister taxa=2C having split roughly 75mya? Even 75 mya=2C these regions were never near each other. Do you think that these genera used to be distributed =3Bfrom South America=2C across Africa to Southeast Asia? Are there any =3Bsister clades in Africa =3Bfor these genera or for other genus groups with a similar South American/Asian distribution? =3B
On Mon=2C Nov 21=2C 2011 at 2:27 AM=2C Peter Boyce <=3Bphymatarum@googlemail.com>=3B wrote:
Hi Marek=2C and other aroid-l folks=2C
=3B
Tom as nicely summed up the situation=3B allow me to put some more meat on the bones.
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We have two independent sets of molecular data that show convincingly that the Neotropical species currently assigned to Homalomena do not belong there NOR do they belong in Philodendron =96 as had been suggested by a previous study [Molecular phylogeny of the genus Philodendron (Araceae): delimitation and infrageneric classification - [Botanical Journal of the Linnean Society 156: 13=9627] - Gauthier=2C Barab=E9 &=3B Bruneau 2008].
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The =91coarse=92 detail is a molecular clock study by Nauheimer et al=2C which gives dates the diversification of the Neotropical and Paleotropical clades at a minimum of ca 75 MYA.
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The =92fine detail=92 comes from a molecular study we=92ve done in Malaysia as part of our work on the =93true=94 Homalomena species. This paper is in prep. now=2C a spin-off from the phylogeny work done by two of our Master=92s projects (Ng Kiaw Kiaw =96 who works on chemical profiling - and Hoe Yin Chen=2C who=92s working on pollination and floral fragrance analyses).
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While Curmeria is =91better known=92=2C the earliest name is Schott=92s Adelonema.
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The published accepted names (<=3Bdates>=3B) involved for the Neotropics are:
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Adelonema | | Schott | Prodr. Syst. Aroid.: 316 | 1860 |
[T] Adelonema | erythropus | (Mart. ex Schott) Schott | Prodr. Syst. Aroid.: 317 | 1860 |
Caladium | erythropus | Mart. ex Engl. | Fl. Bras. 3(2): 172 | 1878 |
Curmeria | | Linden &=3B Andr=E9 | Ill. Hort. 20: 45=2C t.121 | 1873 |
Curmeria | picta | auct. | Gard. Chron.=2C n.s.=2C 1874: 92 | 1874 |
[T] Curmeria | picturata | Linden &=3B Andr=E9 | Ill. Hort. 20: 45=2C t.121 | 1873 |
Curmeria | roezelii | Mast. | Gard. Chron.=2C n.s.=2C 1874(2): 804 | 1874 |
Curmeria | wallisii | (Regel) Mast. | Gard. Chron.=2C n.s.=2C 1877(1): 108 | 1877 |
Homalomena | crinipes | Engl. | Bot. Jahrb. Syst. 37: 124 | 1905 |
Homalomena | erythropus | (Mart. ex Schott) Engl. | Pflanzenr.=2C 55(IV.23Da): 130 | 1912 |
Homalomena | erythropus subsp. allenii | Croat | Aroideana 27: 131 | 2004 |
Homalomena | hammelii | Croat &=3B Grayum | Phytologia 82(1): 37 | 1997 |
Homalomena | kvistii | Croat | Aroideana 27: 135 | 2004 |
Homalomena | moffleriana | Croat &=3B Grayum | Aroideana 27: 137 | 2004 |
Homalomena | peltata | Mast. | Gard. Chron.=2C n.s.=2C 1877(?): 273 | 1877 |
Homalomena | picturata | (Linden &=3B Andr=E9) Regel | Gartenflora 26: 33 | 1877 |
Homalomena | roezelii | (Mast.) Regel | Gartenflora 26: 33 | 1877 |
Homalomena | speariae | Bogner &=3B Moffler | Aroideana 7: 37 | 1984 |
Homalomena | wallisii | Regel | Gartenflora | 1877 |
Homalomena | wendlandii | Schott | Prodr. Syst. Aroid.: 308 | 1860 |
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Bold non-italic text are currently accepted species. All of these names above in Homalomena will be combined into Adelonema. Tom has also three new species=2C and a new variety of H. (A.) crinipes.
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Non-bold italics are synonyms
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[T] =3D type species for the genus
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Adelonema will comprise 16 taxa.
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One additional Neotropical =91Homalomena=92=2C H. solimoensis G.M.Barroso [Arch. Jard. Bot. Rio de Janeiro 15: 89 1957] was moved to Philodendron by Eduardo as: Philodendron humile E.G.Gon=E7.
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Peter
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Is Adelonema =3Ba valid genus? I've read about it in the "=FCberlist" published in the IAS homepage.
What species of Homalomena have been moved?
Can I find any document on the web?
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--
D. Christopher Rogers
((=2C///////////=3D=3D=3D=3D=3D=3D=3D<=3B
785.864.1714
Crustacean Taxonomist and Ecologist
Kansas Biological Survey
Kansas University=2C Higuchi Hall
2101 Constant Avenue=2C Lawrence=2C KS 66047-3759 USA
Vice President=2C Southwest Association of Freshwater Invertebrate Taxonomists SAFIT.ORG
=3B
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