‘Knaphill Lemon’ 
‘Koralle’ 
‘Kutayi’ 
: Dense, arching growth habit; leaves small, dainty; fruit yellow, abundant. 
Letters May 2, 1960 and January 16, 1961, G.D. Waterer, Knap Hill Nurs- 
ery : Originated as open-pollinated seedling of P. rogersiana ‘Flava’ in 
1936; selected in 1944; introduced in 1948 by Knap Hill Nursery. D.R. 
Egolf and R.F. Drechsler. Baileya 15(2):87. 1967 : Chromosome number 
2n=34. 
= ‘Buttercup’ 
P. rogersiana 
Yellow Orange 21B—Orange 24A, RHS 
(Knap Hill Nursery, Woking, Surrey, England. Catalog, p. 3. 1948-49) : 
Fruit lemon yellow. Same origin as ‘Knaphill Buttercup’; introduced in 
1948. 
= ‘Knap Hill Form’ 
P. rogersiana 
(Kordes, Bilsen/Holstein, Germany. Catalog, p. 77. 1979-80) : Compact 
growth habit; dense, spiny shoots; leaves small, evergreen, glossy; flowers 
white, in umbellate panicles; fruit globular, 5-6 mm in diameter, brilliant 
coral red, remaining into the winter. Name registered by H. Lorberg 
Baumschule, Berlin, Germany, August 11, 1989 : Originated as chance 
seedling of P. ‘Goldenen Horn’; introduced in 1962 by H. Lorberg 
Baumschule. 
(H.J. van de Laar. Dendroflora 20:65-66. 1983, as P. coccinea ‘Kutayi’) : 
Shrub, very wide spreading; leaves very small; fruit light orange red, small; 
winter hardy. 
= P. coccinea var. kuntayi Kasapligil 
35 
