Registration of Cultivar Names in Ulmus - Arnoldia - Harvard ...

and described as growing a little more slowly than ’Willis’ but carrying a
heavier crown for the height, also that it branches well and has very attractive
foliage. Raised by Rose Hill Nurseries, Kansas City, Missouri.
‘Rosscelsii’ (Schelle in Beissner et al., Handb. Laubh.-Benenn. 83. 1903, as
U. campestris var. Rosscelsii Hort.). Mistake for Rosseelsii. = U. X viminalis
’AUREA’.
‘Rosseelsii’ (Koch, Dendr. 2 ( 1 ) : 412. 1872, as U. Rosseelsii, name in synonymy)
= U. X viminalis ’AuREA’.
’ROTUNDIFOLIA’ (Mottet in Nicholson & Mottet, Dict. Prat. Hort. 5: 383. 1898, as
U. campestris var. rotundifolia Hort.). Described as having leaves rounded,
oval or suborbicular. Possibly U. carpinifolia.
’Rubescens’ (Schwerin in Mitt. Deut. Dendr. Ges. 20: 423. 1911, as U. effusa
rubescens). Described as having leaves which turn a beautiful blood-red in the
autumn. = U. laevis ’COLORANS’? (U. var. campestris rubescens Herder in
Gartenflora 20: 347. 1871, is possibly an earlier publication of this cultivar
under the name of another species).
‘RuRRA’ (Simon-Louis, Metz, France, Cat. 1869, p. 97, as U. campestris rubra;
Kriissmann, Handb. Laubgeh. 2: 536. 1962, as a cv.). Distinguished by the
inner bark of young branchlets deep red. U, glabra.
’RUEPPELLII’ ( Spath, Berlin, Germany, Cat. 73, p. 124. 1888-1889, as U. campestris
Rueppelli; Kriissmann, Handb. Laubgeh. 2: 535. 1962, as a cv. ) . Described
as a pyramidal tree with a distinct stem and numerous ascending branches
forming a globose or ovoid crown. U. carpinifolia.
‘RUFA’ (Dieck, Zoschen, Germany, Haupt-Cat. Nachtrag 1. 1887, p. 28, as U.
campestris f. rufa, without description). Possibly U. carpinifolia.
‘RucosA’ (Audibert, Tonelle, France, Cat. 1817, p. 23, as U. campestris var.
rugosa, without description; Hartwig & Riimpler, Ill. Geholzb. 583. 1875, as U.
montana var. rugosa Hort.). Described as having very hard, roughly harsh,
somewhat folded leaves, and as being pramidal and thick bushy. U. glabra.
‘RucosA’ (Loudon, Arb. Frut. Brit. 3: 1398. 1838, as U. montana var. rugosa
Masters). Described as having "dark reddish-brown bark, cracking into short
regular pieces, very like Acer campestris; a tree of spreading growth
ate size." Possibly different from the previous cultivar. U. glabra.
73
and moder-
’Rugosa Pendula’ (Kirchner in Petzold & Kirchner, Arb. Muscav. 566. 1864, as
U. rugosa pendula Hort., name in synonymy) = ’PROPENDENS’.
‘SARNiENSis’ (Loddiges, Hackney, London, Cat. 1836 [not seen]; Boom, Ned.
Dendr. 1: 158. 1959, as a cv. ) . The Jersey, Guernsey or Wheatley Elm. Usually
treated as a variety of U. carpinifolia; Dr. Melville believes it is more
and U. X hollandica,
correctly considered as a hybrid between U. angustifolia
for which the botanical name would be U. X sarniensis (Loud.) Bancroft.
However the original clone may still be called cultivar ’Sarniensis’.