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Datasheet for Chamaecostus fusiformis

Plant Datasheet for Chamaecostus fusiformis

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Chamaecostus fusiformis at http://farm8.staticflickr.com/7193/6999534785_ab26c24c73_o.jpg showing tubular flower - Click to see full sized image
Photo# 13109 Accession# R0
Chamaecostus fusiformis at http://farm8.staticflickr.com/7193/6999534785_ab26c24c73_o.jpg showing tubular flower


Chamaecostus fusiformis at http://www.kew.org/science/tropamerica/cristalino.htm showing tubular flower. - Click to see full sized image
Photo# 13110 Accession# R0
Chamaecostus fusiformis at http://www.kew.org/science/tropamerica/cristalino.htm showing tubular flower.


Chamaecostus fusiformis - Click to see full sized image
Photo# 13101 Accession# R3250
Chamaecostus fusiformis


Chamaecostus fusiformis - Click to see full sized image
Photo# 13102 Accession# R3250
Chamaecostus fusiformis


Chamaecostus fusiformis - Click to see full sized image
Photo# 13103 Accession# R3250
Chamaecostus fusiformis


Chamaecostus fusiformis - Click to see full sized image
Photo# 13104 Accession# R3250
Chamaecostus fusiformis


Chamaecostus fusiformis - just starting to flower, this was a sunny location along the entrance road to Cristalino. - Click to see full sized image
Photo# 13105 Accession# R3250
Chamaecostus fusiformis - just starting to flower, this was a sunny location along the entrance road to Cristalino.


Chamaecostus fusiformis habitat, forest understory - Click to see full sized image
Photo# 13106 Accession# R3250
Chamaecostus fusiformis habitat, forest understory


Chamaecostus fusiformis plicate leaves - Click to see full sized image
Photo# 13107 Accession# R3250
Chamaecostus fusiformis plicate leaves


Chamaecostus fusiformis undersides of leaves were purple - Click to see full sized image
Photo# 13108 Accession# R3250
Chamaecostus fusiformis undersides of leaves were purple


Chamaecostus fusiformis bracteole - Click to see full sized image
Photo# 13179 Accession# R3250
Chamaecostus fusiformis bracteole


Chamaecostus fusiformis bracteole is tubular, bicarinate. - Click to see full sized image
Photo# 13180 Accession# R3250
Chamaecostus fusiformis bracteole is tubular, bicarinate.


Chamaecostus fusiformis bracts - Click to see full sized image
Photo# 13181 Accession# R3250
Chamaecostus fusiformis bracts


Chamaecostus fusiformis bracts - Click to see full sized image
Photo# 13182 Accession# R3250
Chamaecostus fusiformis bracts


Chamaecostus fusiformis calyx and bracteole - Click to see full sized image
Photo# 13183 Accession# R3250
Chamaecostus fusiformis calyx and bracteole


Chamaecostus fusiformis close up of the stem and very short ligule and petiole, barely discernable. - Click to see full sized image
Photo# 13184 Accession# R3250
Chamaecostus fusiformis close up of the stem and very short ligule and petiole, barely discernable.


Chamaecostus fusiformis inflorescence, not yet in flower. - Click to see full sized image
Photo# 13185 Accession# R3250
Chamaecostus fusiformis inflorescence, not yet in flower.


CLICK HERE for a detailed botanical description and identification key for this species (opens in new window).

PLANT FAMILY: Costaceae
BOTANICAL NAME: Chamaecostus fusiformis
FORMAL SCIENTIFIC NAME: Chamaecostus fusiformis (Maas) C.Specht & D.W.Stev.
STATUS :Accepted
CONTINENT: Neotropical
SYNONYMS:
Costus fusiformis,

BOTANICAL NOTES:
I thought this species might be intermediate between Chamaecostus and Costus as it has a completely different inflorescence from other Chamaecostus but it does have the tuberous root system, short stature, and bicarinate bracteole of Chamaecostus. The imbricate bracts and tubular flowers, however are much closer in appearance to Costus species and in fact it is superficially similar looking to Costus lasius. C. fusiformis was not included in the specimens examined by Dr. Specht in her molecular analysis, and to my knowledge this has never been done. I received an email from Paul and Hiltje Maas about this species placement and they believe it is closest to Chamaecostus based on the "intermitent shoot" theory of Thiago Andres as explained in the December 2012 Bulletin of the Heliconia Society International.

December 2013 issue of the Heliconia Society International Bulletin, Vol. 19, No. 4

Thiago Andre published results of phylogeny of Chamaecostus. It was found that C. fusiformis is closely related to C. curcumoides and shares many morphological characters with that species.

I found this species to be quite common in the Altafloresta area and at Cristalino in Mato Grosso, Brazil. It was found in a different habitat from the other two species of Chamaecostus in that area, growing in lower areas in a clay-sand mix of soil in forest understory rather than the rocky areas where I found Chamaecostus subsessilis and Chamaecostus lanceolatus. I wrote an article about the Chamaecostus of Cristalino published in the December 2012 issue of the Heliconia Society International quarterly Bulletin.

Chamaecostus fusiformis was just starting to flower when I was in Cristalino, Brazil. It was very common there, growing in different habitat from C. subsesslis or C. lanceolatus, mostly in clay soil and flat areas of terra firme. My thumbnail sheet for these photos is at http://www.gingersrus.com/images/P4849


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