Table 1 Basic characteristics of Ginkgo plants and cultivars with unusual ploidy levels (for details of leaves see Fig. 1)

From: Multiple haploids, triploids, and tetraploids found in modern-day “living fossil” Ginkgo biloba

Plant/cultivar name	Ploidy^a	Screened collection^b	Place of origin/producer	Mode of origin^c	Habit/growth	Sex	Year of appearance
Anny’s dwarf	1x, 1x > 2x, 2x	BHW (1x > 2x), L (2x)	André van Nijnatten Boomkwekerij, Zundern, Neederlad	Seedling	Dwarf	JUV^d/M^ef	1993
Baldii	1x	HL (1x), W (1x > 2x)	? Wiel Linssen, Neederland	?	Dwarf, weeping	M^f	?
Barabit´s fastigiata	1x, 1x > 2x	HL (1x), W (1x > 2x)	Elmér Barabits Löver Pinetum, Sopron, Hungary	Seedling	Dwarf, upright	M^f	1980s
Clica (=Folkers selection)	1x	LWA^g	Albert-Arboreticum, USA	?	Dwarf	?JUV	?
Fastigiata	1x, 1x > 2x, 2x	1x (N), 1x > 2x (W), 2x (HTLC)	?	?Seedling	Semidwarf, upright	M^ef	? end of 19th century
Chase Manhatten	1x > 2x	HB	Bob Hartline, USA	?	Dwarf	M^ef	?
Chris’ dwarf	1x, 1x > 2x	1x(BOL), 1x > 2x(W)	USA	?	Dwarf, weeping	M^ef	?
Little Joe	1x, 1x > 2x	1x(H), 1x > 2x(WA)	Josef Hanhl tree nursery, Austria	Seedling	Dwarf	M^f	2002–2007
Menhir	1x	1x(BL), 1x > 2x(HA)	Hazerswoude nursery, Neederland	Seedling	Semidwarf, upright	–	1996
Munkchin	1x, 1x > 2x	1x(BH), 1x > 2x(W)	? USA	?	Dwarf	F^ef	?
Nory’s	1x	B	Francesco Vignoli Vivai, Italy	Mutation of haploid cv. Obelisk	Dwarf	JUV^d	~2008
Obelisk	1x	BHL	Francesco Vignoli Vivai, Italy	Seedling	Semidwarf, upright	JUV^d/M^f	2006–2008
Rocky	1x	H	Bill Janssen, Collectors nursery, USA	?	Dwarf, upright	?JUV	<2006
Knápek’s triploid	3x	P	Tropik Hukvaldy garden shop, Czech Republic	Seedling	Normal	JUV^d	2002
Orlóci triploid	3x	T	Laszlo Orlóci, BG Budapest, Hungary	Seedling	Normal	JUV^d	~2005
Ožana’s triploid	3x	P	Vladimír Ožana tree nursery (Czech Republic)	Seedling	Normal	JUV^d	2014
Blažíčková’s tetraploid	4x	P	Jana Blažíčková, Czech Republic	Seedling	?Normal	JUV^d	2015
Bullwinkle	4x	W	Bill Janssen, Collectors nursery, USA	?	?Normal	M/F^f	?
Freak	4x	BH	Josef Hanhl tree nursery, Austria	Seedling	?Normal	?M^f	1993–1997
Jagged Jade	4x	W	?	Mutation of diploid cv. Jade Butterflies	?Semidwarf	?M^h	?
Masaryk University tetraploid	4x	BG MU Brno	BG Masaryk University in Brno, Czech Republic	Seedling	Normal	JUV^d	~2012
Pendula Gruga	4x	BHNⁱ	Siegfried Holzschuher, Gruga Park in Essen, Germany	Seedling	Weeping	JUV^d	?
Adam	4x	A	Josef Hanhl tree nursery, Austria	Seedling	Normal	JUV^d	2002–2007
Curly leafs	4x	A	Josef Hanhl tree nursery, Austria	Seedling	Normal	JUV^d	2002–2007
Horizontalis	4x	A(4x), H(2x)	? BG Leiden, Neederland	?Mutation	Weeping	?	?old cultivar
Hoss	4x	A	Josef Hanhl tree nursery, Austria	Seedling	Normal	JUV^d	2002–2007

M male, F female, JUV not flowering yet
^a 1x—haploids, 1x > 2x—haploids forming spontaneous diploid (dihaploid) leaves, buds, or branches, 3x—triploids, 4x—tetraploids
^b Coding of collections: A—Josef Hahnl tree nursery (Austria), B—BG Budapets (Hungary), H—Herrenkampen Gärten (Germany), L—Ovocné a okrasné školky Litomyšl (Czech Republic), N—BG Nitra (Slovakia), O—Vladimír Ožana tree nursery (Czech Republic), P—personal collection of the grower/founder, T—Hungarian National cultivar collection, Tordas (Hungary), W—Manfred Bindewald arboretum (Germany)
^c Seedling = selection from spontaneous seedlings
^d Has not flowered yet according to the personal communication with the grower/breeder
^eCoder (2003)⁴⁰
^f Bego (2011)⁴
^g Both plants named originally as “Clica” and “Folkers selection” were measured
^h Mother cultivar is male
ⁱ Grown under the name “Pendula” in N

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Table 1 Basic characteristics of Ginkgo plants and cultivars with unusual ploidy levels (for details of leaves see Fig. 1)

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