Buds rather long, pointed, free, arranged often in elongated clusters at the ends of long spurs; leaf-scars very prominent; season of bloom medium, averaging five days in length; flowers white, one and three-sixteenths inches across; borne in dense clusters at the ends of long spurs or spur-like branches, well distributed, varying from one to three; pedicels one-half inch long, glabrous, greenish; calyx-tube reddish, campanulate, glabrous; calyx-lobes tinged red, long, narrow, somewhat acuminate, glabrous within and without, reflexed; petals roundish-oval, entire, nearly sessile, with a broad, shallow notch at the apex; filaments one-quarter inch long; pistil glabrous, equal to the stamens in length. Fruit late; three-fourths inch long, seven-eighths inch thick, roundish-oblate, slightly compressed; cavity of medium depth, wide, regular; suture a line; apex roundish, slightly depressed; color dark red; dots numerous, small, light russet, conspicuous; stem slender, one and one-half inches long, adhering to the fruit; skin tough; flesh yellowish-white, with colorless juice, slightly stringy, tender and soft, sprightly subacid; of very good quality; stone free, about three-eighths inch in diameter, roundish, turgid, slightly pointed, with smooth surfaces; ridged along the ventral suture. ARCH DUKE _Prunus avium_ × _Prunus cerasus_ =1.= Parkinson _Par. Ter._ 571. 1629. =2.= Rea _Flora_ 205. 1676. =3.= Prince _Pom. Man._ =2:=135. 1832. =4.= Downing _Fr. Trees Am._ 189, 190. 1845. =5.= Floy-Lindley _Guide Orch. Gard._ 97, 98. 1846. =6.= _Mag. Hort._ =13=:398 fig. 1847. =7.= Elliott _Fr. Book_ 203. 1854. =8.= _U. S. D. A. Rpt._ 135. 1867. =9.= _Am. Pom. Soc. Cat._ 12. 1871. =10.= Hogg _Fruit Man._ 278, 279. 1884. _Griotte de Portugal._ =11.= Duhamel _Trait. Arb. Fr._ =1=:190, 191, Pl. XIII. 1768. =12.= Leroy _Dict. Pom._ =5=:297, 298 fig. 1877. _Portugiesischer Griottier Weichselbaum._ =13.= Kraft _Pom. Aust._ =1=:6, Tab. 16 fig. 1. 1792. _Herzogskirsche._ =14.= Christ _Handb._ 670. 1797. =15.= Christ _Wörterb._ 282. 1802. =16.= Truchsess-Heim _Kirschensort._ 371-376. 1819. _Portugiesische Griotte._ =17.= Christ _Handb._ 674. 1797. _Cerise Royale de Hollande._ =18.= _Ann. Pom. Belge._ =1=:81, Pl. 1853. _Cerise de Portugal._ =19.= Mortillet _Le Cerisier_ =2=:148 fig. 37, 149, 150. 1866.