This is an old variety first mentioned by the English and in all probability is of English origin. It has been greatly confused by some German writers with other black cherries but Truchsess maintains that if placed beside the Grosse Schwarze Knorpelkirsche and the Grosse Schwarze Knorpelkirsche mit Festem Fleische, the two with which it is most often confused, differences could be noted especially as to firmness of flesh and smallness of pit. Fruit large, obtuse-cordate, compressed; suture distinct; stem slender, short; cavity small, smooth, shallow; skin dark reddish-brown changing to black, lighter along the suture; flesh more tender than in most hard-fleshed sorts, dark red, sweet; stone small, adhering before fully mature, colored; ripens early in July or earlier. =Black Turkey Heart.= _P. avium._ =1.= Watkins _Cat._ 32. 1892. Fruit large, black, late; suitable for market and home use. =Blasse Johanni Kirsche.= Species? =1.= Thomas _Guide Prat._ 23. 1876. Received by Thomas with a recommendation from Baron Emanuel Trauttenberg of Prague. =Bocage.= Species? =1.= Thomas _Guide Prat._ 25. 1876. =2.= _Guide Prat._ 17. 1895. This variety is said, in _Guide Pratique_, 1895, to be similar to Carnation, a Sour Cherry, while Thomas says it is similar to Reine Hortense, a hybrid sort. =Bohemian Queen.= _P. cerasus._ =1.= _Can. Hort._ =13=:104. 1890. This variety is said to come true to seed; to be similar in fruit-characters to Ostheim, though larger and more fleshy; to be productive and a cherry of good flavor; and to succeed well in moist land. =Bon Bon.= Species? =1.= Childs _Cat._ 153 fig. 1893. A very early, large, dark red, juicy cherry; ships well and bears regularly. =Book.= Species? =1.= _Pa. Dept. Agr. Rpt._ Pt. =1=:427. 1902. This is a local variety recommended by John Weitzel, Bethesda, Lancaster County, Pennsylvania. Fruit medium to large, dark red; ripens the middle of June. =Boppard.= _P. avium._ =1.= _Can. Exp. Farms Rpt._ 415. 1899. _Boppard's Early._ =2.= _Can. Exp. Farm Bul._ 2nd Ser. =3=:58. 1900. _Bopparder Frühkirsche._ =3.= _Proskauer Obstsort._ 55. 1907. Tree vigorous; fruit large, obtuse-cordate; skin glossy, dark red; flesh red, firm, juicy, sweet. =Boquet Morello.= P. _cerasus._ =1.= _Ia. Hort. Soc. Rpt._ 78. 1890. _Amarelle Boquet._ =2.= _Ibid._ 331. 1885. =3.= _Del. Sta. An. Rpt._ =12=:110. 1900. This is one of Budd's importations of 1883, according to the third reference. It is often confused with the Boquet Amarelle of the French. The fruit resembles Early Richmond in size, shape, season and color, differing only in its flesh being more firm, its pit smaller, and the tree less productive; of no value commercially. =Boreatton.= _P. avium._ =1.= _Lond. Hort. Soc. Cat._ 47. 1831. =2.= Elliott _Fr. Book_ 215. 1854. A small, roundish-cordate, nearly black Sweet Cherry, with half-tender flesh; poor quality; ripens in mid-July.