121 
Quercus macrocarpa Michaux, bur oak, mossy cup oak [S: incl. f. 
oliviformis (Michaux f.) Trel.] (the eee of 
maintaining infraspecific tax a in Q. macrocarpa has not 
been examined in detail, but Muller (1951) indicated 
that f. oliviformis is part of a continuum of variation 
within this species), p 
Q. marilandica Muenchh., black jack oak, 43 
Q. michauxii Nutt., swamp chestnut oak, basket oak, cow oak, 
538 
p. 
Q. x moultonensis Ashe, see named hybrids 
Q. muehlenbergii an le chestnut ats Sip aban 
inata 
chinkapin [S: rinoides Willd. v: 
eeagaig se incl. f. perros (Britton) 
‘Steyerm.; M: rinoides var. acuminata] (Muller, 
1951; Vouk 1985b), p. 539 
Q. x mutabilis E. J. Palmer & Steyerm., see named hybrids 
Q. nigra L., water oak, p. 543 
Q. pagoda Raf., cherrybark oak [S: Q. falcata var. pagodifolia 
Elliott] (Ware, 1967; Jensen, 1989), p. 544 
Q. palustris Muenchh., pin oak, p. 550 
Q. phellos L., willow oak, p. 542 
Q. prinoides Willd., dwarf chestnut oak, scrub oak, dwarf 
chinquapin, dwarf chinkapin, p. 539 
Q. rubra L., red oak, northern red oak, p. 550 
var. ambigua (A. Gray) Fern. [S: Q. rubra var. borealis 
(Michaux f.) Farw.; G: Q. borealis Michaux f.; M: Q. 
rubra] (there is no consensus on the proper level at 
which to recognize this taxon; see Voss (1985a) for 
brief discussion of the specific and varietal epithets and 
Thompson (1987) for discussion of the proper species 
name and arguments against maintaining varieties) 
Q. x runcinata (A. DC.) Engelm., _ named hybrids 
Q. x schuettei Trel., see named 
Q. shumardii Buckley, Shumard’s pi water oak, spotted oak, red 
oak, p 
var schneats coe Sarg., Schneck’s oak 
var. shumardii 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
