Dionysia khatamii

Guest photographer: Dieter Zschummel

Botanical Description
Dionysia khatamii
Forming slightly to very open cushions of small rosettes to 10mm in diameter but usually less. Leaves lanceolate, blunt pointed, non revolute, densely pubescent, 5-7mm long, 1-1.2mm wide. Corolla violet, occasionally pinkish, 5-8mm diameter, tube 10-12mm long, deeply emarginate petal lobes. Related to D. curviflora, like which species it sometimes grows on igneous rocks but also limestone. Discovered in 2002, 2500-2700m, Darreh Damgahan south of Mehriz, Yazd Province, Iran known only from one introduction, T4Z013. For some time JLMS02-07 was considered to be a compact introduction but after further consideration Dieter Zschummel who was part of the T4Z expedition believes JLMS02-07 to be a natural hybrid with D. curviflora. The fact that there is only one clone from the JLMS02-07 collection might well confirm the reduced viability of hybrid status. One of the more susceptible species to botrytis, mature specimens are rare.  
Reference: ALPINE GARDEN SOCIETY PLANT ENCYCLOPAEDIA
Acronyms

Some other interesting websites:
Greek Mountain Flora
Vanlife One
Primula World
Androsace World
Botanical Garden of the University Tübingen Germany
Gothenburg Botanical Garden Sweden
Utrecht Botanic Gardens Netherlands
Royal Botanic Garden Edinburgh UK
Alpine Garden Society Encyclopaedia