Possibly this is the same as the White Heart of England. It is without a doubt a separate variety from the Guignier à gros fruit blanc of Duhamel. Fruit above medium in size, elongated-cordate; stem very long, slender, set in a deep cavity; suture a line, skin yellowish-white, tinged with red in the sun, uneven, glossy, transparent; flesh white, not very tender, juicy, sweet; quality good; stone of medium size, cordate, acute; ripens at the end of June. =Enopa.= _P. pumila × P. triflora._ =1.= _S. Dak. Sta. Bul._ =108=:1908. =2.= _Ibid._ =130=:178 Pl. 8. 1911. Enopa, a cross between the Sand Cherry and the Occident plum, was sent out in 1908 by the South Dakota Station. Fruit one and one-sixteenths inches in diameter, round, with a minute prickle at the apex; skin thin, free from acerbity, dark red, with blue bloom; flesh green. =Episcopale.= _P. cerasus._ =1.= Thomas _Guide Prat._ 25, 193. 1876. =2.= Leroy _Dict. Pom._ =5=:265 fig. 1877. This variety, according to Leroy, was found in the vicinity of Paris and was introduced by M. Jamin-Durand, Bourg-la-Reine, in 1846. The tree is distinguished from that of Montmorency in being more erect, less dense, less productive; the fruit is more acid and later in ripening. =Eppers Weichsel.= _P. cerasus._ =1.= Dochnahl _Führ. Obstkunde_ =3=:67. 1858. Tree vigorous, productive; fruit large, oval, flattened at the base, brownish-red, with a deep suture; flesh clear red, juicy, strongly subacid; pit elongated; ripens in September. =Erfurter Augustkirsche.= _P. cerasus._ =1.= Christ _Obstbäume_ 159. 1791. =2.= Truchsess-Heim _Kirschensort_. 550-554. 1819. _D'Aout Erfurt._ =3.= Mas _Pom. Gen._ =11=:89, 90, fig. 45. 1882. _Délices d'Erfurt._ =4.= _Guide Prat._ 17. 1895. _Erfurt Delicious._ =5.= _Gard. Chron._ =19=:429. 1896. _Hochgenuss Von Erfurt._ =6.= _Proskauer Obstsort._ 59. 1907. This cherry is well known in and about Thuringia forest, Germany, where it is propagated by suckers and is valued for its lateness. Tree vigorous; fruit above medium in size, roundish-cordate, flattened; stem of medium length, set in a noticeable cavity; suture indistinct; skin tender, glossy, brownish-red changing to purplish-black; flesh tender, reddish, juicy, sugary, acidulated; stone free, small, pea-shaped; ripens the last of July. =Etopa.= _P. pumila × P. triflora._ =1.= _S. Dak. Sta. Bul._ =108=:1908. =2.= _Ibid._ =130=:179. 1911. Etopa is a cross between the Sand Cherry and the Occident plum. Said to be excellent in quality and remarkable for its intense black, purplish color of skin, flesh and juice; skin thin, free from acerbity; ripens there about September twelfth. =Eugène Furst.= _P. avium × P. cerasus._ =1.= _Guide Prat._ 18. 1895. _Fürst's Herzkirsche._ =2.= Dochnahl _Führ. Obstkunde_ =3=:23. 1858. Fruit above medium in size, elongated-cordate; stem of medium length, slender; skin black; flesh red, sugary, acidulated; matures the last of June to July. Said to be similar to May Duke.