Hi Marek, and other aroid-l folks,
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Tom as nicely summed up the situation; 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, Barab=E9 & Bruneau 2008].
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The =91coarse=92 detail is a molecular clock study by Nauheimer et al, 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, 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, who=92s working on pollination and floral fragrance analyses).
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While Curmeria is =91better known=92, the earliest name is Schott=92s Adelonema.
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The published accepted names (<dates>) 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 & Andr=E9 |
Ill. Hort. 20: 45, t.121 |
1873 |
|
Curmeria |
picta |
auct. |
Gard. Chron., n.s., 1874: 92 |
1874 |
|
[T] Curmeria
|
picturata |
Linden & Andr=E9 |
Ill. Hort. 20: 45, t.121 |
1873 |
|
Curmeria |
roezelii |
Mast. |
Gard. Chron., n.s., 1874(2): 804 |
1874 |
|
Curmeria |
wallisii |
(Regel) Mast. |
Gard. Chron., n.s., 1877(1): 108 |
1877 |
|
Homalomena |
crinipes |
Engl. |
Bot. Jahrb. Syst. 37: 124 |
1905 |
|
Homalomena |
erythropus |
(Mart. ex Schott) Engl. |
Pflanzenr., 55(IV.23Da): 130 |
1912 |
|
Homalomena |
erythropus subsp. allenii
|
Croat |
Aroideana 27: 131 |
2004 |
|
Homalomena |
hammelii |
Croat & Grayum |
Phytologia 82(1): 37 |
1997 |
|
Homalomena |
kvistii |
Croat |
Aroideana 27: 135 |
2004 |
|
Homalomena |
moffleriana |
Croat & Grayum |
Aroideana 27: 137 |
2004 |
|
Homalomena |
peltata |
Mast. |
Gard. Chron., n.s., 1877(?): 273 |
1877 |
|
Homalomena |
picturata |
(Linden & Andr=E9) Regel |
Gartenflora 26: 33 |
1877 |
|
Homalomena |
roezelii |
(Mast.) Regel |
Gartenflora 26: 33 |
1877 |
|
Homalomena |
speariae |
Bogner & 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, 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, 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=A0a 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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