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Datasheet for Dimerocostus strobilaceus subsp. appendiculatus

Plant Datasheet for Dimerocostus strobilaceus subsp. appendiculatus

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D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru    - Click to see full sized image
Photo# 17432 Accession# R3119
D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru


D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru    - Click to see full sized image
Photo# 17433 Accession# R3119
D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru


D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru    - Click to see full sized image
Photo# 17434 Accession# R3119
D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru


D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru    - Click to see full sized image
Photo# 17435 Accession# R3119
D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru


D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru    - Click to see full sized image
Photo# 17436 Accession# R3119
D. aff. strobilaceus subsp. appendiculatus at San Rafael community, near Iquitos, Peru



PLANT FAMILY: Costaceae
BOTANICAL NAME: Dimerocostus strobilaceus subsp. appendiculatus
FORMAL SCIENTIFIC NAME: Dimerocostus strobilaceus Kuntze
STATUS :
CONTINENT: Neotropical
SYNONYMS:


BOTANICAL NOTES:
Dimerocostus strobilaceus subsp. appendiculatus can easily be confused with Dimerocostus argenteus based soley on the appearance of the inflorescence. Both have appendixed bracts (distinguishing them from D. strobilaceus subsp. strobilaceus. and from D. strobilaceus subsp. gutierrezii) but the illustrations found in Dr. Maas' 1972 monograph are quite different the two species. D. argenteus is illustrated with much smaller bract appendages, yet in the only living plant I have seen that was det'd by Dr. Maas as D. argenteus, the bract appendages are quite long. In the written descriptions, he says that D. argenteus has bract appendages from 10 to 45 mm long, wheras D. strob. subsp. appendiculatus is described as having bract appendages 20 to 70 mm long - ie: some overlap. It is therefor important to consider also the undersides of the leaves, distinguishing D. argenteus from this subspecies by its "silvery, sericeus" undersides.

The type local for this subspecies is Hacienda Indiana near the mouth of the Rio Napo in Dept Loreto, Peru. In 2008 I photographed a Dimerocostus within 50 or so km from that location at the San Rafael Indigenous village on the Amazon River. The photos I took are shown on this page and are believed to be this subspecies. Unfortunately, I did not appreciate that I was seeing something special and did not take many detailed photos, and did not check the undersides of the leaves. The seeds that were collected germinated but did not survive here. A thumbnail page showing photos of this plant can be found at http://www.gingersrus.com/images/P4012

ACCESSION NOTES:
R3119 seeds did not succeed.

OBSERVATION NOTES:

San Rafael village, Maynas Province, Peru, Latitude -3.556, Longitude -73.11, at 90 meters elevation.

Yonomono, Maynas Province, Peru, Latitude -3.44, Longitude -72.85, at 90 meters elevation.


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