This page contains photos and description of a species, form or cultivar of Costaceae.

Gingersrus Database Taxon ID 2445

Monocostus uniflorus


OLD NAME: Monocostus uniflorus

NEW NAME: Monocostus uniflorus

NAME CHANGE NOTES:

FULL SCIENTIFIC NAME: Monocostus uniflorus (Poepp. ex Petersen) Maas

STATUS : accepted

CONTINENT: Neotropical

FIELD OBSERVATIONS:(If field observations are available, you can click on the link to open in a new window.)

PHOTOS:(If photos are available, you can click on the link to open in a new window.)
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SYNONYMS:
- Monocostus ulei K.Schum. in Engler (1904)

BOTANICAL NOTES:
Monocostus uniforus is an accepted species, and is the only species in the genus Monocostus. It is described as a low plant, 20-60 cm tall, with very short ligules and petioles and small leaves. The flowers are produced at the leaf axils, a single flower per axil. The calyx is green and relatively long at 20-30 mm, bracteole is bicarinate, wrapping around the calyx, corolla yellow, labellum yellow, large and spreading.

This genus and species is endemic to the area around Tarapoto in San Martin, Peru. The type species was from Yurimaguas but was destroyed in vienna, so the neotype is from Rio Huallaga southeast of Tarapoto.

I went there looking for it in 2008 but did not find it. Some years earlier Chelsea Specht found it there. As I understand it, this species grows in fairly dry areas, well drained rocky slopes and has a very narrow range of habitat. An herbarium specimen from the Jardim Botanico do Rio de Janeiro had the notation "Habitat: bosque seco, terreno muy seco". Much of the surrounding area of the type location has been deforested and habitat destroyed, so it is not known whether the species still exists in the wild but it is at the very least critically endangered, I would think.

Monocostus uniforus was included in the molecular phylogeny using a sample of my cultivated plant (R2848). In the phylogeny tree it showed up as the earliest species in the Monocostus/Dimerocostus clade, which has separate origins in the new world from Costus and Chamaecostus.

HORTICULTURAL NOTES:
Accessions all from cultivated plants: R1589, R2501, R2848 and R3171 - all most likely from the same original source. This collection has been vouchered at the UC Berkeley, Jepsen Herbarium, UC2045794.

ACCESSIONS:Click links (if any) to see details of individual collections. R1589- R2501- R2848- R3171-


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Photos (if available) of Taxon ID 2445
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Monocostus uniflorus, photo from Maas, BB PM DSC_0131 - Click to see full sized image
Photo# 383 Accession# R0
Monocostus uniflorus, photo from Maas, BB PM DSC_0131


Monocostus uniflorus, photo from Maas, BB PM DSC_0133 - Click to see full sized image
Photo# 384 Accession# R0
Monocostus uniflorus, photo from Maas, BB PM DSC_0133


Monocostus uniflorus, cultivated plant Skinner R3171 - Click to see full sized image
Photo# 385 Accession# R3171
Monocostus uniflorus, cultivated plant Skinner R3171


Monocostus uniflorus, cultivated plant Skinner R3171 - Click to see full sized image
Photo# 386 Accession# R3171
Monocostus uniflorus, cultivated plant Skinner R3171


Monocostus uniflorus, cultivated plant Skinner R3171 - Click to see full sized image
Photo# 387 Accession# R3171
Monocostus uniflorus, cultivated plant Skinner R3171