Cultivar Check Lists for Ornamental Plants - Claude E. Phillips ...

Tucker-28
names of originators.
Pultenaea: see Australian (& South African) plants
Pyracantha
Bertrand, Cadic, and Belin (1992) lists 30 cultivars and three species of the firethorns.
Cultivars of are also listed by Bean (1970-1988), Egolf and Andrick (1995), Laar (1966),
Hachmann et al. (1986b), Krüssmann (1984-1986), Schmalscheidt (1984), and de Vos (1958).
Pyrus
Bean (1970-1988), Bom (1982), and Krüssmann (1984-1986) list ornamental cultivars
of pears. The cultivars of the Callery pear (P. calleryana Decne.) are discussed by Santamour
and McArdle (1983a).
Quercus
The cultivars of the oaks are listed by Wyman (1962f) but with few introduction dates
and little background. Bean (1970-1988), Bom (1982), Grootendorst (1980b), Krüssmann
(1984-1986), and McArdle and Santamour (1985, 1987a, 1987b) thoroughly discuss the
cultivars of oaks. The cultivars of the Lucombe oak, Q. ×hispanica Lam., are discussed by
Plovanich-Jones, Coombes, and Hoa (1999).
Ranunculus
The cultivars of the lesser celandine, R. ficaria L., are discussed by Harper (1999) and
Mattern (1995b).
Raphiolepis
The cultivars of the Indian hawthorns are listed by Hagan et al. (2001) in reference to
their resistance to entomosporium leaf spot, fireblight, and anthracnose in Alabama.
Rhapis
The cultivars of the lady palm are listed by McKamey (1983).
Rheum
The ornamental rhubarbs are discussed by Hinkley (1999).
Rhododendron
Brickell (1980) provides guidelines for naming Rhododendron cultivars. The cultivars
of rhododendrons and azaleas are first documented in Street (1954) and later Fletcher (1958)
and Clarke (1960, 1967), and this is updated by Royal Horticultural Society (1964, 1969b,
1988e, 1989d, 1989e, 1990c, 1991b, 1992c, 1993b, 1994b, 1995a, 1996c, 1998c, 1998d, 2000d,
2001d); the registrations from 1962 to 1987 were originally published in The Rhododendron
and Camellia Yearbook and Rhododendron with Magnolias and Camellias. Kraxberger (1980)
lists American Rhododendron hybrids, many of which were originally published in
Rhododendrons and Rhododendron Notebook; more recently the American hybrids have been
listed in the Journal of the American Rhododendron Society. German Rhododendron hybrids
are discussed by Schmalscheidt (1980), while late-flowering cultivars are discussed by
Schmalscheidt (1990), double-flowered rhododendron cultivars are discussed by Schmalscheidt
(1994), early-blooming cultivars are discussed by Schmalscheidt (1993a), and bicolored
cultivars are discussed by Schmalscheidt (1993b). Yellow-flowered cultivars are discussed by
Hoffman (1997). Deciduous hybrids are discussed by Bärtels (1988b). Small-leaved cultivars
are discussed by Hawke (1991). Knap Hill azaleas are discussed by Löcken (1993).
Introductions by Hans Hachmann are discussed by Moser (1993), while introductions by Emil
Pusch are discussed by Moser (1991a). Cultivars derived from R. kiusianum Mak. originated by
Werner Dänhardt are discussed by Moser (1991b). The vireya cultivars are discussed by
Walker and Kenyon (1997). Rhododendrons for rockeries are discussed by Köhlein (1990a),
while rhododendrons for small gardens are discussed by Schmalscheidt (1988). These
checklists should be used in conjunction with Bärtels (1994c), Bean (1970-1988), Bowers