Map_thumbnail_large_font

Cypripedium lentiginosum

Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_onStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA LILIOPSIDA ORCHIDALES ORCHIDACEAE

Scientific Name: Cypripedium lentiginosum
Species Authority: P.J.Cribb & S.C.Chen
Common Name(s):
English The Freckled Cypripedium, Chang Ban Shao Lan
Synonym(s):
Cypripedium lichiangense S.C.Chen & P.J.Cribb subspecies lentiginosum (P.J.Cribb & S.C.Chen) Eccarius

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(ii,iii,v)+2ab(ii,iii,v); C2a(i); D ver 3.1
Year Published: 2014
Date Assessed: 2013-10-16
Assessor(s): Rankou, H. & Averyanov, L.
Reviewer(s): Fay, M.
Justification:

Cypripedium lentiginosum is very rare and local with a scattered and restricted distribution to southeastern Yunnan in China and Ha Giang province in Viet Nam. 

The trend of the population is decreasing, the species often occurs as solitary plants or in very small groups, the abundance of the species has been significantly reduced in recent decades due to many threats especially collection, trampling, ecological disturbance, deforestation, tourism, exploitation for horticultural uses and infrastructure development.

The estimated extent of occurrence and area of occupancy of the species are about 50 km2 and20 km2 respectively and the number of mature individuals is less than 100 with an estimated continuing decline in the number of mature individuals and the quality of the habitats in the two known locations. Therefore, C. lentiginosum is assessed as Endangered (EN).

Geographic Range [top]

Range Description:

Cypripedium lentiginosum occurs in China and Viet Nam. The species is confined to southeastern Yunnan with a single finding in Malipo (China) and Ha Giang province (Viet Nam). The extent of occurrence (EOO) is estimated at 50 km² and the area of occupancy (AOO) is estimated at 20 km². The species can be found between 2,100 m and 2,200 m of altitude.


Sources: Cribb 1997, Cribb and Sandison, 1998, Cribb and Chen 1999, efloras 2008, eMonocot 2013, Frosch and Cribb 2012, Li 2005, Li and Zhou 2005, Singchi et al. 2012.

Countries:
Native:
China (Yunnan); Viet Nam
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population:

Cypripedium lentiginosum is a very rare and local slipper orchid species with a very restricted distribution, which occurs often as solitary plants or in very small groups, the abundance of the species has been significantly reduced in recent decades, the population density is very low and the trend of the population is decreasing. 

Cypripedium lentiginosum is known from two subpopulations and the estimated number of mature individuals is estimated to be fewer than 100 individuals and the species often forms more or less loose groups and very small colonies.

Sources: Cribb 1997, Cribb and Sandison, 1998, Cribb and Chen 1999, efloras 2008, eMonocot 2013, Frosch and Cribb 2012, Li 2005, Li and Zhou 2005, Singchi et al. 201).

Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology:

Cypripedium lentiginosum occurs in a specific type of habitat in mossy forests, thickets, scrub and open woods on steep rocky limestone boulders just below ridges.on The species grows on moist substrates, steep stony cliffs in humus rich or shallow soils and in mineral soil on limestone rocks under Rhododendron, Fraxinus and Pterocarya. The species prefers mid-shaded to shaded habitats and flowers in May.  


Sources: Cribb 1997, Cribb and Sandison, 1998, Cribb and Chen 1999, efloras 2008, eMonocot 2013, Frosch and Cribb 2012, Li 2005, Li and Zhou 2005, Singchi et al. 2012.

Systems: Terrestrial

Use and Trade [top]

Use and Trade:

Cypripedium lentiginosum is an ornamental plant used for horticulture, with domestic and international trade.

Threats [top]

Major Threat(s):

Cypripedium lentiginosum is sensitive to the environment and is typically associated with a specific set of habitat conditions, such as rocky high altitudes, nutrient availability, mossy steep places and shaded habitats.

The species is under numerous anthropogenic threats including the exploitation for horticultural purposes, ruthless collection, trampling,  weak recovery, regional and international trade, ecological disturbance, degradation of the habitat due mainly to tourism, leisure activities, urbanization, infrastructure development, management activities, recreation activities by direct effect (e.g., destruction of plants) and indirect effect (e.g., alteration of habitat).

Cypripedium lentiginosum is threatened more generally by climate change, drought, deforestation, random cutting and soil erosion. In addition the intrinsic factors of the population which are considered a threat for Cypripedium lentiginosum as the distribution of the species is limited to two sites and low number of mature individuals.


Sources: Cribb 1997, Cribb and Sandison, 1998, Cribb and Chen 1999, efloras 2008, eMonocot 2013, Frosch and Cribb 2012, Li 2005, Li and Zhou 2005, Singchi et al. 2012.

Conservation Actions [top]

Conservation Actions:

All orchid species are included under Apendix II  of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).

However, the following actions are recommended to protect Cypripedium lentiginosum:

- Species based management and conservation is essential to ensure to protect the remaining limited number of individuals.

- Knowledge of the optimal growth conditions is required. Such information may help to develop effective ways to restore the natural habitat of the species

- Initiate long term community based conservation to protect the habitat and species.

- Protection of the habitat, especially from collection, trampling and deforestation.

- Fencing the vulnerable sites.

- Management of habitat to reduce competition for resources (i.e., light, water, nutrients).

 - Sympathetic management of isolated populations.

- Monitoring programs are needed to track the status of existing populations with respect to ongoing management practices.

- Learning about the mycorrhizal relationships of this species with the goal of establishing successful protocols for symbiotic ex situ propagation and cultivation.

- Further research on the life cycle and ecology of the species.

- Land protection and habitat diffuse management can be implemented to conserve habitat near or between occurrences.

- Raise public awareness.

- Protection of the living individuals of the species through legislation and legal protection which ban the species not to be picked or dug up.

- Ex situ conservation: Artificial propagation, re-introduction, seed collections.

- Monitoring and surveillance of the existing populations and sites.

- Estimate the population size and study their dynamics. 


Citation: Rankou, H. & Averyanov, L. 2014. Cypripedium lentiginosum. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 24 November 2014.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided