Book  (2018)  Page(s) 467.  Includes photo(s).
 
Clematis viticella L.
...Romania, the Balkans, Georgia, northwestern Iran, Turkey and western Syria. Seen in western and northern Anatolia, especially where the mediterranean climate prevails. Select wet regions. Often encountered in creeks around Zonguldak, Mengen, Devrek. Seen in Samsun, Kütahya, Eskişehir, Uşak, Denizli areas.

Article (magazine)  (2013)  Page(s) 61.  
 
Clematis viticella ...‘Purpurea’ (List of 1836)

Website/Catalog  (29 Jul 2010)  Includes photo(s).
 
Clematis viticella L.
Fully hardy, deciduous, semi-woody climber with small, solitary, open bell-shaped, blue, purple or rose-red flowers, to 4cm across, in summer and autumn.  To 4m.  There are many garden varieties.  [RHSE, Hilliers’].

Horticultural & Botanical History
‘A very ornamental climber, and its flowers sweet-scented.  Though well known to our older Botanists, and cultivated as long ago as the year 1569, by Mr. Hugh Morgan, it is by no means common: the double variety is more so; but this in our opinion, though preferred by Miller, is not so handsome as either of the single red or purple varieties.’  [BM t.565/1802].

History at Camden Park
Listed in all published catalogues [T.326/1843].

Book  (2007)  Page(s) pl. 63.  Includes photo(s).
 
Clematis viticella. Viticella Clematis: This is the wild form of the commonly cultivated viticella group of clematis, and parent of the popular x jackmannii hybrids. It flowers through the summer, in rough shrubby places at low altitudes. From Bahçesehir, in June 2003.

Book  (Oct 2001)  Page(s) 383.  Includes photo(s).

Book  (2001)  Page(s) 183.  
 
Plant Introductions in the period 1500-1599
c. 1568 Clematis viticella Vine Clematis. S.E. Europe

Book  (2001)  Page(s) 160.  
 
Clematis viticella, a bell-shaped late flowerer, was introduced into England towards the end of the 1560s by Hugh Morgan (c.1540-1613), who had not one but two 'botanic' gardens in London. He was Apothecary to Queen Elizabeth...

Book  (1999)  Page(s) 238.  
 
...violet or purple flowers

Website/Catalog  (1931)  Page(s) 30.  
 
Clematis ....Medium-sized blooms approx. 3/5 cm bloom diameter.....Clematis viticella, for sunny locations, halfshade, floriferous, deep blue, July/Aug., 60/80 cm ...2 Mark [10] 18,-- [100] 160,--

Website/Catalog  (1919)  Page(s) 66.  
 
Clematis viticella. Small-bloomed, blue...10 pieces M 25.-, 100 pieces M 200.-