Copiapoa cinerea subsp. krainziana (F.Ritter) Slaba

국표에 없다.

Larridon, I. et al. (2018). Investigating taxon boundaries and extinction risk in endemic Chilean cacti (Copiapoa subsection Cinerei, Cactaceae) using chloroplast DNA sequences, microsatellite data and 3D mapping. Kew Bulletin 73: 55.

MorphologyGeneralHabitPlants branching, forming loose mounds; stems grey-green often slightly pruinose, to 20 cm diam. Ribs not undulatingMorphologyGeneralSpinesSpines thin and numerous, completely hiding superior part of stem, variable in colour and attitude, white to greyish black, porrect to radiating, straight to curved or contorted, finely acicular, flexible, to 3.5 cm.EcologyThe narrow endemic Copiapoa cinerea subsp. krainziana is restricted to hillsides.DistributionSan Ramón Valley and its immediate vicinity located just north of Taltal (25°24'S, 70°28'W).ConservationSaldivia et al. (2013) listed the conservation status of Copiapoa cinerea subsp. krainziana (as C. krainziana) as LC. According to our results the conservation status of this taxon can be assessed at least as VU based on its very small AOO (AOO < 20 km2). Besides its very small EOO and AOO, the fact that it is only known from two or three adjacent populations that can be considered as a single location, impacts on habitat quality due to drought as a result of global climate change, as well as threats due to illegal plant collecting on the number of mature individuals, it can be assessed as CR (IUCN 2012). Conservation action for this taxon is particularly important because our results suggest elevated inbreeding, and as a narrow endemic it may also experience genetic drift and erosion. Copiapoa cinerea subsp. krainziana should also be monitored closely as ongoing speciation may be limited due to hybridisation with individuals of C. cinerea subsp. cinerea. The subspecies is currently not protected in situ, although it is conserved in ex situ seed bank and living collections (Larridon et al. 2014).

Copiapoa cinerea subsp. krainziana (F.Ritter) Slaba | Plants of the World Online | Kew Science

 

 

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