Tree large, vigorous, upright-spreading, open-topped, unproductive; branches rather slender, smooth except for the large, conspicuous lenticels; branchlets slender, long; leaves numerous, two and three-fourths inches long, one and three-eighths inches wide, obovate to oval, thin, dark green, smooth; petiole over one-half inch long, tinged with red, with from one to three small, globose, greenish-yellow or brownish glands at the base of the blade; buds intermediate in size and length, usually obtuse; season of bloom late; flowers one inch across; borne in scattered clusters; filaments one-fourth inch long; pistil slightly shorter than the stamens, often defective. Fruit matures in mid-season; about three-fourths of an inch in diameter, roundish-conic, slightly compressed; color very dark, dull red; stem slender, one and one-fourth inches long, adhering to the fruit; skin thin, tough; flesh very dark red, with dark wine-colored juice, tender, rather meaty, very astringent, sour; of poor quality; stone nearly free, small, ovate, flattened, pointed, with roughish and colored surfaces. HILDESHEIM _Prunus avium_ =1.= Prince _Pom. Man._ =2=:131. 1832. =2.= Elliott _Fr. Book_ 196. 1854. _Guignier à Fruit Rouge Tardif._ =3.= Duhamel _Trait. Arb. Fr._ =1=:162. 1768. _Agathe._ =4.= Knoop _Fructologie_ =2=:37. 1771. _Doppelttragende Kleine Rothe Spätkirsche._ =5.= Truchsess-Heim _Kirschensort_. 281, 282, 283. 1819. _Hildesheimer Ganz Späte Knorpelkirsche._ =6.= Truchsess-Heim _Kirschensort_. 321, 322, 323. 1819. _Late Red Guigne._ =7.= Prince _Pom. Man._ =2=:113. 1832. _Bigarreau Tardif de Hildesheim._ =8.= Downing _Fr. Trees Am._ 184. 1845. _Merveille de September._ =9.= Elliott _Fr. Book_ 210. 1854. _Belle Agathe de Novembre._ =10.= _Ann. Pom. Belge_ =3=:9, Pl. 1855. _Hildesheimer Späte Knorpelkirsche._ =11.= _Ill. Handb._ 139 fig., 140. 1860. _Kratos Knorpelkirsche._ =12.= _Ill. Handb._ 59 fig., 60. 1867. _Schöne Agathe._ =13.= _Ill. Handb._ 63 fig., 64. 1867. _Bigarreau de Fer._ =14.= Leroy _Dict. Pom._ =5=:199, 200 fig. 1877. _Belle Agathe._ =15.= Mas _Pom. Gen._ =11=:99, 100, fig. 50. 1882. _Bigarreau de Hildesheim._ =16.= Hogg _Fruit Man._ 282. 1884.