I’m by no means an authority on Monstera, and you must
check with Tom on this, but reading through Madison’s synonymy and excluding dilacerata
and its homotypical synonyms AND assuming that the description he gives is
truly only a single species (far from the case in many of his taxa) AND allowing
for the fact that Madison’s revision covers barely a third of the species that
probably exist in Monstera AND there are also some blunders in the work,
the next available name is indeed M. pinnatipartita.
Neotypified means that the all typical material cited when the
name was published in destroyed (or believed so) and that a new type has been chosen
to represent the taxon.
From: Michael Pascall
Sent: Monday, 12 April, 2010 5:19 PM
Subject: RE: [Aroid-l] More on Monstera dilacerata
OK , so what is the species pictured as M
dilacerata in Madisons revision ? Because M siltepecana mature foliage is
perforated and does not look anything like the incised leaf pictured for M
dilacerata there . Also pictures I have of the underneath of a mature leaf of
dilacerata shows two ribs , and I am pretty certain Epipremnum pinnatum only
has one .
OH I thought this was going to aroid-l but I see I am replying to you Peter ,,
after reading the below , I think I am grasping this a bit now .
If neotypified means what I think , that is it is now a species and not a
synonym . So is it now Monstera pinnatipartita ?
To: Steve@ExoticRainforest.com; Thomas.Croat@mobot.org;
Subject: RE: [Aroid-l] More on Monstera dilacerata
Date: Mon, 12 Apr 2010 14:00:37 +0800
Monstera dilacerata is DEFINITELY conspecific
with Epipremnum pinnatum. I sunk it!
C. Koch & Sello, Ind. Sem. Hort. Bot. Berol., App. (1853) 5. — Monstera
dilacerata (C. Koch & Sello) C. Koch, Ind. Sem. Hort. Berol., App.
(1855) 5. — Tornelia dilacerata (C. Koch & Sello) Schott,
Prodr. Syst. Aroid. (1860) 356. — Type: Cultivated Berlin Botanic Garden (B†
holo; K iso), syn. nov.
The above is cut and pasted from: Boyce (1998): The Genus
Epipremnum Schott (Araceae–Monsyeroideae–Monstereee) in
West and Central Malesia, Blumea 43: 183–213
Sent: Monday, 12 April, 2010 12:03 PM
To: Tom Croat; Peter Boyce; Simon Mayo
Subject: Re: [Aroid-l] More on Monstera dilacerata
I tried for several days to help Mic Pascall understand that Monstera
dilacerata is no longer an accepted name with little success. He
wrote to me several times this week and appears to feel this plant is in fact a
Neotropical plant and as far as I know Mike Madison may have observed it.in the
wild. Mike at least does show an illustration of it on one page of his
revision along with a discussion and TROPICOS still has it as a good
name. CATE says it is now a synonym of Epipremnum pinnatum as does
Mike Grayum in the quote which Mic used on Aroid l (in red below). That
quote came from MOBOT: http://www.mobot.org/MOBOT/research/edge/jan98/jan98not.shtml
I realize Mic feels he is right but unless someone is about to reveal something
new, Monstera dilecerata appears to have been described from a cultured
specimen, perhaps incorrectly.
I started to respond to his Aroid l post but since I am obviously not an
authority on any of this, a response that would best come from you, Pete (since
he known Rhapidophora) or Simon. I just wanted you to know where
he got his quote since he sent it to me this past week trying to explain I was
wrong (maybe I am). I did a major search until I found the source.
I am copying this to Pete and Simon since I'd really like to see this one
resolved. The plant I have as Monstera siltepecana is the one that
started all of this. My plant was ID'd by Dylon Hannon as a juvenile but
has grown substantially since then. It is developing fenestrations but so
far has not begun to morph. The blades are about 10 inches long. If
my plant is not M. siltepecana I will remove the page from the web.
You looked at this once before but were unsure of the juvenile photos.
See you in less than two weeks with Joep in tow!
Michael Pascall wrote:
Did a few more searches today for this sp.
And found it is still a valid species on GRIN ..
dilacerata K. Koch
Family: Araceae subfamily: Monsteroideae
Nomen number: 312844
Place of publication: A. C. H. Braun et al., App. gen. sp. nov. 5. 1855
Name verified on: 14-Oct-1987 by ARS Systematic Botanists. Last
Species priority site is: Natl. Germplasm Repository - Miami (MIA).
still listed on Tropicos as well . So goes to show you cannot believe
everything you hear or read .. Is it just that it has not been updated ?
Or mistaken identity with mature foliage that got this statment ..
"The wantonly and inventively misapplied Monstera
dilacerata (K. Koch & Sello) K. Koch is revealed to be a synonym of the
Asian Epipremnum pinnatum (L.) Engl., and the obscure Monstera
pinnatipartita Schott is neotypified and resurrected for one of the four Costa
Rican spp. included under M. dilacerata in Madison's generic revision (Contr.
Gray Herb. 207: 1-100. 1977). The redundant combination Monstera dissecta
(Schott) Croat & Grayum (1987) is corrected to M. dissecta (Schott) N. E.
Br. ex Donn. Sm. (1899). No illustrations. "
cannot wait for the next revision .
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