NEPENTHES revision for Flora Malesiana

Matthew Jebb (
Fri, 9 Sep 94 08:43:49 +0100

Matthew Jebb, Trinity College Dublin. (
Martin Cheek, Royal Botanic Gardens, Kew. (

We are working on a revision of the genus Nepenthes for Flora Malesiana.
This region covers Malaysia, Indonesia, Philippines and New Guinea,
therefore species such as the Madagascan, Seychelles, Thai and N.khasiana
and N.distillatoria fall outside the area.

Here is a preliminary list of the species we propose to recognise for our
revision. We hope to have a paper submitted to Blumea by the end of the
year outlining the proposed changes.

Looking at some old CPN issues, there is one character by the name
of MIKE HOPKINS (no relation to the PNG/Brazilian one) see CPN Vol
19 March 1990 - He mentions a "New species" from Gunung Dempo,
Southern Sumatra. - has anybody seen this in cultivation or heard
more about it? or does anybody know Mike Hopkins, Mike are you there ?
please contact ground control soonest!

There are abundant rumours of just what people do or don't
have in cultivation, and it would be of great conservation value to have
some master list, a bit like a Rare Breeds Trust, so that these species
could be protected from extinction, as well as providing a source of
material for modern taxonomic studies on DNA or other molecular

We would welcome the comments of people who have observations
of these species in the field or from cultivating them. We shall be
illustrating a number of species which we feel have been insufficiently
illustrated in the past, and emending descriptions of various other species
where appropriate.

Your comments can only improve the quality of the product, and all
assistance will be appropriately acknowledged.

1 N.adnata Tamin & Hotta ex Schlauer & Nerz.
Illustration? Jan will you be illustrating this in Blumea?
2 N.alata Blanco
Illustration of variation.
Some funny variation in Sumatra that we have yet to fully elucidate.
3 N.albo-marginata Lobb ex. Lindl.
4 N.ampullaria Jack
5 N.aristolochioides spec.nov. Mt.Kerinci, Sumatra.
Description and illustration.
Fantastic pitchers with laterally opening mouths.
6 N.bellii Kondo
to incl. N.globamphora
7 N.bicalcarata Hook.f.
8 N.bongso Korth.
to incl. N.carunculata.
9 N.borneensis Adam & Wilcock
Emended description, Illustration.
Has anybody recollected N.boschiana from southern Kalimantan ?
Both these species are solely known by their holotypes, a far
from satisfactory measure of their possible variability.
10 N.boschiana Korth.
11 N.brachycarpa Merril
12 N.burbidgeae (Burb.) Macf.
13 N.burkeii Mast.
14 N.campanulata Kurata
This has a very peculiar kind of pitcher in that the lid is tiny
and circular - usually the species with strongly infundibulate/
campanulate pitchers (N.inermis, N.dubia, N.infundibuliformis,
N.fusca) have very narrow lids, and the pitcher mouth `pops'
open to a fully formed, large circular shape. In this species
there must, therefore, be considerable growth of the pitcher
mouth after opening. There are rumours that the species is
extinct in its type locality, but has anybody heard of it in
cultivation? Can it be got to the Kew Micropropagation (or
similar) Unit ????
15 N.clipeata Dans.
Similarly this species may now be very rare in the wild. Does anyone
have any up to date info ????
16 N.danseri spec.nov. Waigeo & Halmahera.
Description, Illustration.
To be named after the great man of Nepenthes taxonomy.
17 N.deaniana Macf.
18 N.densiflora Dans.
19 N.diatas spec.nov.
Description, Illustration.
Northern Sumatra. Higher altitude, more woody than N.densiflora,
different pitcher shape.
20 N.dubia Dans. Real or a hybrid ?
Does anybody have experience of this species on Mt.Ophir? or anyother
mountains in Sumatra? MIKE HOPKINS (CPN March 1990) ARE YOU OUT
THERE ? You had an interesting hybrid of N.inemris in your article?
21 N.edwardsiana Low ex.Hook.f.
minus N.macrophylla (see below), Illustration.
22 N.ephippiata Dans.
23 N.fusca Dans.
It is interesting that N.maxima appears to be very rare in Northern
Borneo, it is almost as though N.fusca replaces it...are they in
fact the same `thing'?
24 N.glabratus Turnbull & Middleton
Emended description, Illustration.
25 N.gracilis Korth.
to incl. N.neglecta
26 N.gracillima Ridl.
27 N.gymnamphora Reinw. ex Nees
27a N.gymnamphora ssp. tomentella (Becc.) stat.nov. - Sumatran subspecies
Description, Illustration. This differs in its lower pitcher
form, and its reluctance (?) to produce upper pitchers. A neat
geographical split makes the construction of a sub-species
delimitation seem like a natural thing to do. What do the rest
of you think?
Incl. N.rosulata, p.p.N.pectinata (viz. Schlauer & Nerz in press)
28 N.hamatus Turnbull & Middleton
The priority of this name over N.dentata by 21 days is in fact in
serious doubt, since the `preprinted' Reinwardtia issue was
technically not `freely available' in terms of the Botanical
Code. However since it has entered more common usage (?) we will
probably retain it. What do Nepenthes growers feel about this ?,
since they are usually the people who suffer from taxonomists
"changing" names ?
29 N.hirsuta Hook.f.
30 N.X hookeriana (Lindl.) Macf
Along with the hybrid N.X trichocarpa, this is widespread and needs
to be an option as a `species' in a Flora. N.X Kinabaluensis appears
to have become a self sustaining population in its own right.
Technically one could readily raise it to species level on that
31 N.inermis Dans.
32 N.infundibuliformis Turnbull & Middleton
Emended description, Illustration.
33 N.insignis Dans.
34 N.junghunii Ridl.
Emended description, Illustration.
35 N.X kinabaluensis Kurata
From the account of Anthea Phillipps this could probably be safely
regarded as a fully fledged species now.
36 N.klossii Ridl.
37 N.leptochila Dans.
38 N.lowii Hook.f.
39 N.macfarlanei Hemsl.
40 N.macrophylla (Marabini) stat.nov.
41 N.macrovulgaris Turnbull & Middleton
42 N.mapuluensis Adam & Wilcock Fig.
Emended description, Illustration.
43 N.maxima Nees
44 N.merrilliana Macf.
45 N.mirabilis (Lour.) Druce
46 N.mollis Dans.
Little known. No pitchers.
47 N.muluensis Hotta
48 N.murudensis Culham (In prep.)
A new species closely related to N.reinwardtiana and N.tentaculata.
Photo in Phillipps & Lamb.
49 N.neoguineensis Macf.
50 N.northiana Hook.f.
to incl. N.decurrens
51 N.paniculata Dans.
Is this truly distinct from N.neoguineensis.
52 N.papuana Dans.
53 N.petiolata Dans.
54 N.philippinensis Macf.
55 N.pilosa Dans.
56 N.rafflesiana Jack
57 N.rajah Hook.f.
58 N.reinwardtiana Miq.
59 N.rhombicaulis Kurata
There is still no other material of this species, and we have
been unable to borrow the type, although I now see that the next issue
of CPN has new info.....
60 N.sanguinea Lindl.
61 N.singalana Becc.
p.p.N.pectinata (viz. Schlauer & Nerz in press)
62 N.spathulata Dans.
63 N.spectabilis Dans.
64 N.stenophylla Mast.
to incl. N.faizaliana, N.fusca var. apoensis.
65 N.sumatrana Beck
Emended description, Illustration.
Incl. N.spinosa, N.rafflesiana var. longi-cirrhosa.
66 N.tentaculata Hook.f.
67 N.tobaica Dans.
68 N.tomoriana Dans.
69 N.treubiana Warb.
Neotype now available ?
70 N.X trichocarpa Miq.
71 N.truncata Macf.
72 N.veitchii Hook.f.
Are there 2 forms of this species? Although appreciated by growers
there is, alas, not nearly enough herbarium material to draw any
conclusions. We would be delighted to hear from anyone who
feels that they can justify any distinctions, geographic or ecological.
73 N.ventricosa Blanco
74 N.vieillardii Hook.f.
75 N.villosa Hook.f.

Excluded from this list are those species from outside the Flora
Malesiana area. Apart from changes to the Thai taxa these stay much as they