Website/Catalog  (26 Jul 2011)  Includes photo(s).
 
Clematis florida Thunb. var. sieboldii
See Clematis florida Thunb. var. bicolor for a description of the species.   Sieboldii is a hardy climber with purple and greenish-white flowers very similar, probably identical, to bicolor.  [RHSD].

Horticultural & Botanical History
Introduced to Britain in 1836.  [JD].  Figured at BR f.25/1839 as var. bicolor and at FS f.487/1849 as Clematis sieboldii.

History at Camden Park
It may have been obtained from Loddiges’ nursery, it was included among desiderata in a letter dated 16th April 1846 although there is no record of receipt.  [MP A2933-1, p.147].

Website/Catalog  (29 Jul 2010)  Includes photo(s).
 
Clematis florida Thunb. var. bicolor
Frost hardy, deciduous or semi-evergreen weak-growing climber with single flowers, 7-10cm across, with creamy white sepals and domed bosses of rich purple stamens in spring and summer.  To 2.5m.  [RHSE, Hilliers’].

Horticultural & Botanical History
‘This very handsome plant is certainly a mere variety of C. florida, from which it differs principally in the clearness and brightness of colour of the flowers, and in being of rather more robust growth.  It is about as hardy as that species, and one of the very best climbing plants that have been introduced for many years.  Trained to some well contrived basket work, fixed upon a pot, and protected by a greenhouse from rain and other causes likely to dim its colours, it ought to form one of the most striking show-plants ever seen.’  [BR f.25/1838]. 
Bicolor is very similar to Clematis florida Thunb. var. sieboldi which see, and which was figured in Flore des Serres [FS f.487/1849].

History at Camden Park
Listed in the 1845, 1850 and 1857 catalogues [T.319/1845].  A plant was presented to the Sydney Botanic Garden by William Macarthur on September 15th 1847 [RBGS AB].

Book  (Oct 2001)  Page(s) 20, 349.  Includes photo(s).
 
Page 20: [According to Evison and Johnson] the herbarium speciment held in the University of Uppsala is not typical of C. florida but bears close resemblance to an unnamed poor form of 'C. 'Sieboldii' [aka C. florida 'Sieboldiana', C. florida 'Bicolor']... Clematis 'Sieboldii' was introduced in to the Leiden Botanic Garden in the Netherlands in 1837, by its director, Philipp von Siebold... C. 'Sieboldii' sported to produce another double-flowered cultivar, C. 'Plena', also known as C. florida 'Alba Plena'... [both were] introduced from the Netherlands into the British Isles in 1836 [which would be a year before the authors just wrote the former was introduced into the Leiden Botanic Garden???]
Page 349: [PHOTO]

Book  (11 Oct 2000)  Page(s) 118.  

Book  (Sep 2000)  Page(s) 123.  Includes photo(s).

Book  (1999)  Page(s) 235.  

Book  (1999)  Page(s) 130.  
 
Clematis florida var. bicolor, China, 1972

Website/Catalog  (1995)  Page(s) 41.  Includes photo(s).
 
Clématite FLORIDA BICOLOR (Sieboldii) Fleurs composées de 6 larges sépales blanc crème qui contrastent avec les étamines pétaloïdes pourpres. Floraison de Juin à Sept.

Website/Catalog  (1992)  Page(s) Autumn issue, p. 66.  Includes photo(s).
 
FLORIDA SIEBOLDII : fleurs simples de 8 cm de large, évoquant celles de la passiflore. Sépales blanc crème, grosse touffe d'étamines pétaloïdes d'un pourpre intense.

Website/Catalog  (1919)  Page(s) 67.  
 
Clematis Jackmanni-Hybrids....Sieboldi, pure dark blue... 10 pieces M 35.-, 100 pieces M 300.-