Peperomia comarapana C.DC.

ACADEMIA NACIONAL DE CIENCIAS EXACTAS.
FISICAS Y NATURALES DE BUENOS AIRES
INSTITUTO
TRUMAN e. YUNCKER HERBARIUM
fJfiW YO^,
botahiicau
INSTITUTO DE BOTANICA
DARWINION
SAN ISIDRO. F. C. C. A.
ARGENTINA
San Isidro,30 de junio de 1951,
3>o Prof. Dr
? G. Yuncker
DePauw bniversity,Indiana,u
Deal' Dir;
letter
borne tii ie ago Dr. .^.L.Cabrera of La Plata passed to ne your
of July 26, 1S4S . In that letter you expressed your opinion about a
Peaeromia frail Buenos Aires (herbarium Krapovickas no. 3028) ", telling us that
it would be perhaps a new species.
I an now preparing a paper on this interesting southernmost
Peperomia with detailed illustrations.! collected, the plant with Krapovickas
and »1 cultivating it in this institute. I include herewith a duplicate speci-
men with ripe drupes for your herbarium.
In My opinion this_ plant is very probably conspecific with
Peperomia cornarapana C.DG. 5from tlie eastern mountains of Bolivia* In the ori-
ginal description De Candolle says (Mededeelinden Hijks herb. Leiden 27;8.
1315) that the plant is 'dense-velutino-puberula* but the fototyp.e (Chicago IIus
IT.List, series no. 25.193) shows a plant very like that from Buenos Aires and
not too much hairy.Unfortunately it is in flower only,but this is the case
in many C.DC.species,whose descriptions in later years were very short.I have no
type material. How the similarity is,on the other hand , very clear and although
seems a difficulty,fortunately I have some spe-
Bs.Aires, Cordoba,Chaco argentine*
much the distance between the type
locality of P.comarapana and the plant in northern Buenos Aires province. It,
seems to me that P.L3tuckertii C.DC^from Cordoba,is also a synonym of P>comara-
^
My first little work on Peperomia was a note in our jornal
Darwinian a ( vol. 7, p. 171-73.1945) ; I identified then F.catharinae liiq. for
the first time for Argentina (E.Iiios,along the uruguay and Parana-Delta) ;this
had been mis identified by L.Hauman as P.Lorentzii C.DC. from Tucum&n. ITow this
P*catharinae is an epiphyte ,w&ereas P.comarapana is a true terrestrial rizo-
matous species9with many differences.
I ask you kindly to give new attention to my specimen of
presumably P.comarapana and inform me about your opinion.Have you good material
from type locality of P*comarapana ? Then I should appreciate very much the
borrowing of a little sheet,if possible in fruiting state.
It may be of interest for you to know that the Darwinion has
the geographical distribution
cimens which link the areas;north of prov.
The Chaco specimens especially reduce very
a good collection of
many specimens are a
iperaceae of Ecuador from the Godiro herbarium,I think
types or iso types* Many are unnumbered, but nearly all
have determinations by Godiro’s own hand. They might be of interest to you,as
monographer of the tropical southamerican Piperaceae. Your monographs I- think
are very important,! have seen them but we could not buy them as yet for the
Darwinion.
v Please , if possible, give me your answer as soon as you can.
My paper on the Buenos Aires Peperomia comarapana(
short time# I shall send you a separate copy.
Do you continue also your work on
Please accept my best regards.
) will be published in a
Cuscuta ?
Yours faithfully
Arturo Burkart
Director
/ HERBARIUM
/ T. G. YUNCKER
OF DEPAUW UNIVERSITY (DPU)
PURCHASED BY NY IN 1987
NEW YORK BOTANICAL GARDEN
04121685
_EXACTAS, FISICAS Y NATURALES DE BUENOS AIRES
DE BOTANICA DARWINION
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