TRELEASE— NAMING AMERICAN HYBRID OAKS. 51 



Q. Plicllos X cuneata= X Q- subfalcata 

 X ilicifol{a= X Q- Giffordi 

 . X inarilandica= X Q. Rudkini 

 X Pagoda = X Q- ludoviciana 

 X rubra= X Q- heterophylla 

 X f z'ehttina= X Q. dubia 

 X Q. podophylla n. nom. (0. cinerea X -^ vclutina) 



This is Q. pctiolaris Ashe, a preoccupied name. 

 X Q. Porteri n. nom. (Q. rHtra .^ X vehitina) 

 O. prinoides X o/6a = X Q- Faxoni 

 0. Primis^ X alha = X Q- Beadlei 

 Q. pimgens X Emoryi (See note under Q. Emoryi) 

 X Q. Rehderi n. nom. {Q. ilici folia X velutina) 

 X O- RiCHTERi Baenitz (Q. palustris X rubra) 

 X Q. Robbinsii n. nom. (0. coccinea X Uicifolia) 

 Q. rubra X coccinea= X Q- Benderi 



X ijnbricaria= X Q- runcinata 

 X palustris ^^ X Q- Richteri 

 X Phellos^ X Q. heterophylla 

 X -^ velutina =X Q. Porteri 

 X Q. RuDKixi Britton (Q. marilandica X Phellos) 

 X Q- RUNCINATA Engelmann (Q. imbricaria X rubra) 



The current idea that this is a cross of Q. cuncata with Q. rubra seems 

 less probable than the parentage here indicated; and cuncata does not occur 

 where the tj-pe material was collected. 



X Q. Saulii Schneider (0. alba X montana) 



X Q. Schuettei n. hybr. {Q. bicolor X macrocarpa) 



A form with twigs of Q. macrocarpa and sometimes corky-winged, foliage 

 varioush' intermediate but prevailingly suggestive of bicolor, and subsessile 

 small fruit of the bicolot type but with the cups sometimes short-fringed and 

 then resembling small-fruited forms of macrocarpa. — Cf. Proc. Amer. Philos. 

 Soc. 54. pi. I. — Tlie type from Fort Howard, Wisconsin (Schuctte, September 

 28, 1893). 



X Q. Smallii n. nom. (0. georgiana X marilandica) 



0. stcllata X alba ^ X Q- Fernowi 



X Q. sterilis n. nom. (0. marilandica X nigra) 



8 The cow oak, commonly known as Q. Michauxii. 



