For those that would like to read it, here is Dr. Croat's article
from Aroideana Volume 6, number four on Anthurium leuconeurum.
Like many short articles this one can be downloaded for free from
www.Aroid.org. Just do a search on the search engine on the lower left
of the homepage. There is a slight charge for larger articles.
Aroideana is an extremely valuable source of good information for any
grower. If you are an IAS member you will receive a copy of the annual
issue every summer. Those of us that enjoy knowing the facts about our
plants often cherish the library of issues we have managed to acquire
but even if you don't have all of them in print you can still read them
on the IAS site. If you haven't joined yet, I promise you will get
your money's worth!
1983 AROIDEANA Volume 6, number
4, page 133
Origin of Anthurium leuconeurum
Dr. Thomas B. Croat
Missouri Botanical Garden
P. O. Box 299
St. Louis, Missouri 63166
The name Anthurium
leuconeurumhas been in use by
horticulturists since 1862
when a plant, believed to have been collected in southern Mexico by
Boniface Ghiesbrecht, was described by the French botanist
Lemaire. The plant apparently flourished in European botanical garden
hothouse collections for a period of about seven decades. A number of
herbarium collections were prepared and placed in herbaria at Kew
Geneva, Paris and elsewhere; most of these collections were made before
1895. The last such herbarium collection I've seen was prepared in 1935
University of Coimbra, Portugal, by L. W. Carrisso and
at the Kew Herbarium. It is important to note that either Ghiesbrecht
prepared no voucher in the field or if he did it has not survived.
described in 1862 no mention was made of
any herbarium collection and a painting published at that time (Plate
Vol. 9 of L'illustration
Horticole, 1862) serves
as the type. In addition, no
collections have been made of the plant since the time of Ghiesbrecht,
despite more than a century of collecting by many botanists
Mexico. (I, myself, have made trips to many parts of southern Mexico in
search of it.)
For some of
our readers perhaps the first introduction to this name was in the
Madison, in an article entitled "The
the name as synonymous with A. clarinervium
another distinctly different species also restricted to southern
Mexico. That A.
distinct can be seen from a
reproduction of Lemaire's Plate (Fig. 1; see also cover of Aroideana,
5, No.3) and a photograph of A. clarinervium
native habitat in
Chiapas (Fig. 2). The chief differences are the more open sinus and a
of the basal veins in A. leuconeurum
sinus and free basal
veins in A. clarinervium.
the midrib and primary lateral veins
in A. clarinervium
paler than the surface; this distinction, although present, is not as
trips to European plant collections I was surprised not to find any
material of A. leuconeurum
concluded that it must have
during the destructive period of World War II. It was not until I
Australia in 1981 that I came across collections of plants I was
certain were A. leuconeurum.
they were called A. cordatum,
Fig. 3 a
species which is also illustrated in Exotica
photo represents a plant that, despite slightly more spreading
compares relatively well with the type plate (Fig. 1) of A. leuconeurum.
The really interesting
this discourse is that A. leuconeurum
certainly of hybrid origin which explains why it has never been
What brought this to my attention was the article by Banta (1983) in a
issue of Aroideana.
article described a cross
between A. clarinervium
2) and A. berriozabalense
4) that he repeateerafter first seeing similar results conducted by Bob
McColley of Bamboo Nursery. The hybrid, illustrated
Figure 3 of Banta's paper is,
close match for the type figure for A. leuconeurum
of the parent
plants are native to
State in Mexico and both have been collected, for example, north of the
town of Berriozabal. That A. ciarinervium
a species capable of hybridizing in the wild is
documented by the fact that I
seen hybrids of
it with A.
the same region. John Banta (personal communication) reports that A. berriozabalense
also readily hybridize with A. pedatoradiatum;
further confirmed by Dr. Richard
1983) that members of Anthurium
with members of section Schizoplacium.
by John Banta which has led to the conclusion that A.
in Australia (Fleetwood Nursery). leuconeurum
probably of hybrid origin is an example of how
important it is for horticulturists to make accurate records of their
and to publish similar articles.
1983. What's in a Name? Aroideana
B. & R.
The sectional groupings of Anlhurium