38 



Var. amcenum, Gray, (Man., ed. 5, 292), a form with 

 bristly-ciliate, serrulate leaves, bright green both sides, shining 

 above, often pubescent on veins beneath. (V. amocnum, Ait., 

 Hort. Kew., ed. i, 2: 12; Bot. Rep. 1.138; Twin. in. Nat. Ord. 

 2 : 83, 6 ; Bot. Reg. 400. Figured, as V. corymbosum, Bot. Mag. 

 t-3433-) Mainly in the Middle Atlantic States. 



Var. pallidum, Gray, 1. c., a pale and glaucous or glaucescent 

 form, with or without some pubescence ; ovary more completely 

 inferior, generally low ; otherwise resembling amcenum. (V . pal- 

 lidum, Ait. 1. c. ; Gray, Man. ed. I, 262. V. albiflorum, Hook, 

 Bot. Mag. 1.3428. V. Constablcei, Gray, Am. Jour. Sci. 42 : 42). 

 Common in mountainous regions southward. 



Var. fuscatum, Gray, (Syn. Fl. 2:23), a tall form with the 

 mature and entire leaves fuscous-pubescent beneath ; flowers 

 virgately somewhat spicate on the naked flowering twigs. (V. 

 fuscatum, Ait., 1. c.) Alabama and Florida to Louisiana and 

 Arkansas. 



V. corymbosum is one of the most valuable species both for 

 fruit and as an ornamental shrub. It thrives in the garden and 

 is readily susceptible of improvement by cultivation. Toward 

 the south it approaches V. virgatum, Ait., and var. pallidum may 

 be confused with V. vacillans, Kalm. 



V. atrococcum, Heller, (Black Blueberry) 

 Heller, Torr. Bull. 21:24, 1894. 



(Synonyms: V. disomorphum, Bigej. Fl. Bost, ed. 2, 151, not 

 Michx. ; V. corymbosum var. atrococcum, Gray, Man., ed. 5, 

 292.) 



A branching shrub with shreddy bark, similar to V. corym- 

 bosum. Leaves oval or oblong, dark green above, densely 

 pubescent beneath, entire, acute, often mucronate; flowers in 

 short racemes, appearing with the leaves; berry black without 

 bloom, sweet. Moist woods and swamps, Canada to Pennsyl- 

 vania and New Jersey. 



