176 MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 



Ostrya baileyi Rose. Bailey hophornbeam. 



Range: 11, 16, 19. 

 Site : Dry, well-drained, sun. 

 Fruit: Nutlet. 

 A small tree. 



Ostrya knowltonii Cov. Western hophornbeam. 



Range : 9, 11. 



Site : Dry, well-drained, sun. 

 Fruit: Nutlet. 

 A large shrub to small tree. 



Ostrya virginiana (Mill.) Koch. Hophornbeam. 



Range : 15, 18, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30. 



Site : Dry, well-drained, moist, sun, shade. 



Fruit: Nutlet, available August-October. 



A small, very slow-growing tree. Var. glandulosa (Spach) Sarg., the more 

 northern form, has been noted to be possibly the same as 0. baileyi. 



Stomach records: Five species of birds including ruffed grouse, bobwhite, 

 ptarmigan ; white-tailed deer ; composed 14.73 percent of winter food of ruffed 

 grouse in New York. Observations: Five species of birds, including ruffed 

 grouse, ring-necked pheasant ; staple food of northern sharp-tailed grouse in 

 Quebec ; white-tailed deer, cottontail rabbit. 



Oxycoccus erythrocarpus, see Hugeria erythrocarpa. 

 Oxycoccus macrocarpus, see Vaccinium macrocarpon. 

 Oxycoccus oxycoccus, see Vaccinium oxycoccus. 

 Oxycoccus palustris, see Vaccinium oxycoccus. 



Oxydendrum arboreum (L.) DC. (pi. 22, B). Sourwood. 



Andromeda arboreum L. 



Range: 25, 27, 28, 29, 30. 

 Site : Dry, well-drained, sun, shade. 

 Fruit : Capsule, available September-October. 



A large tree ; flowers June-August ; rarely attacked by insects or diseases ; 

 wood sometimes used locally. 



Stomach records: White-tailed deer. A good bee plant. 



Oxytenia acerosa Nutt. 



Range : 9, 10. 



Site : Dry, sun. 



Fruit : Achene. 



A large shrub, leafless and rushlike, or with leaves ; often occurs on alkaline 

 soil. Not eaten by livestock and considered poisonous to cattle by stockmen. 



Pachistima canbyi Gray. Cliffgreen. 



Range: 27. 



Site : Dry, well-drained, sun, shade. 

 Fruit: Capsule, available August-September. 



A small evergreen shrub ; flowers April-May ; occurs on limestone and other 

 soils ; creeping branches root. 



Stomach records: White-tailed deer. 



Pachistiuia myrsinites (Pursh) Raf. Myrtle boxleaf. 



Range : 1, 2, 4, 9, 12, 13, 14. 

 Site : Dry, well-drained, moist, sun, shade. 

 Fruit : Capsule, available July-September. 



A small evergreen shrub ; flowers May-July ; densely branched, very leafy ; 

 sometimes nearly prostrate. 



Stomach records: Richardson's grouse; mountain sheep, black-tailed deer, 

 plains white-tailed deer. Occasionally browsed by livestock ; rarely causes live- 

 stock poisoning. 



Pachysandra procumbens Michx. Pachysandra. 



Range : 25, 27, 28, 29, 30. 



Site : Well-drained, sun, shade. 



Fruit: Capsule. 



A small evergreen shrub ; flowers April-May ; often occurs on calcareous 

 soil ; forms large clumps by means of rootstocks. 



