Tree above medium in size, moderately vigorous, upright to slightly spreading, usually hardy, productive; branches ash-gray, with small, numerous lenticels; branchlets slender, short, with internodes of medium length, greenish-red changing to brownish-red, many twigs retaining a tinge of green, shining, glabrous, with numerous, small lenticels; leaf-buds large, long, pointed, strongly appressed; leaf-scars large. Leaves nearly flat, obovate, one and one-half inches wide, three inches long, thick; upper surface shining, slightly rugose, pubescent only along the grooved midrib; lower surface yellowish-green, lightly pubescent; apex taper-pointed, base acute, margin serrate, eglandular or with small, dark glands; petiole three-quarters inch long, nearly glabrous, slightly tinged red along one side, glandless or with from one to three globose yellowish glands on the stalk and base of the leaf. Blooming season intermediate, short; flowers appearing after the leaves, one inch across, white; borne in clusters on short lateral spurs and buds, singly or in pairs; pedicels one-half inch long, slender, glabrous, greenish; calyx-tube green, campanulate, glabrous; calyx-lobes lightly pubescent, glandular-ciliate, slightly reflexed; petals obovate, entire, short-clawed; anthers yellowish; filaments one-quarter inch long; pistil pubescent at the base, longer than the stamens. Fruit late, season medium; unusually large when well grown, two and one-eighth inches by two inches in size, elongated-oval or slightly obovate, halves unequal; cavity shallow, narrow, abrupt; suture wide, variable in depth; apex flattened, somewhat depressed or occasionally with a short, blunt tip; color dark reddish-purple or purplish-black, overspread with thick bloom; dots numerous, small, brownish, inconspicuous; stem three-quarters inch long, adhering well to the fruit; skin variable in toughness, somewhat astringent, separating readily; flesh golden-yellow, juicy, firm, sweet, mild, not high in flavor; good; stone clinging, sometimes tinged red, one and one-eighth inches by seven-eighths inch in size, irregularly oval, slightly flattened, roughish, acute at the base and apex; ventral suture broad, slightly winged; dorsal suture with a broad, shallow groove. GUEII [Illustration: GUEII] _Prunus domestica_ =1.= Downing _Fr. Trees Am._ 3rd App. 181. 1881. =2.= _Can. Hort._ =14=:293, Pl. 1891. =3.= _Mich. Sta. Bul._ =103=:34, fig. 6. 1894. =4.= _Cornell Sta. Bul._ =131=:187. 1897. =5.= _Ont. Fr. Exp. Sta. Rpt._ 120. 1898. =6.= _Mich. Sta. Bul._ =169=:242, 245. 1899. =7.= _Ohio Sta. Bul._ =113=:159. 1899. =8.= _Am. Pom. Soc. Cat._ 39. 1899. =9.= Waugh _Plum Cult._ 107. 1901. =10.= _Va. Sta. Bul._ =134=:42, 43 fig. 14. 1902.