Tree medium in size and vigor, round and dense-topped, hardy, usually productive; branches short, stocky, dark ash-gray, with large lenticels; branchlets short, with internodes of medium length, greenish-red changing to dark brownish-red, dull, thinly pubescent, heavily marked with scarf-skin and with few, small, inconspicuous lenticels; leaf-buds small to medium, short, conical, appressed. Leaves folded backward, obovate or oval, two and one-quarter inches wide, three and three-quarters inches long; upper surface pubescent only along the midrib; lower surface pale green, lightly pubescent on the midrib and larger veins; apex abruptly pointed or acute, margin serrate or crenate, usually with small, dark glands; petiole three-quarters inch long, tinged red along one side, sparingly pubescent, glandless or with from one to four greenish-brown glands usually on the stalk. Blooming season intermediate in time and length; flowers appearing after the leaves, one and three-sixteenths inches across, creamy in the buds, changing to white on opening, borne in scattering clusters on short, lateral buds and spurs, singly or in pairs; pedicels three-eighths inch long, thick, glabrous, greenish; calyx-tube green, campanulate, glabrous or lightly pubescent; calyx-lobes broad, obtuse, pubescent on both surfaces, glandular-serrate, reflexed; petals oval, somewhat erose, with short, broad claws; anthers yellowish; filaments five-sixteenths inch long; pistil glabrous, longer than the stamens. Fruit mid-season, period of ripening short; two inches by one and one-half inches in size, obovate, slightly necked, compressed, halves unequal; cavity shallow, narrow, abrupt; suture shallow; apex roundish or depressed; color light to dark purplish-red, overspread with bloom of medium thickness; dots numerous, smallish, russet, inconspicuous; stem seven-eighths inch long, thinly pubescent, adhering well to the fruit; skin of medium thickness and toughness, adhering but slightly to the pulp; flesh light golden-yellow, variable in juiciness, coarse, somewhat fibrous, firm, rather sweet, mild fair in quality; stone semi-clinging or clinging, one and one-eighth inches by five-eighths inch in size, long-oval, flattened, with rough and pitted surfaces; ventral suture strongly furrowed; dorsal suture with a shallow groove. GLASS _Prunus domestica_ =1.= Downing _Fr. Trees Am._ 3rd App. 181. 1881. =2.= _Am. Pom. Soc. Cat._ 39. 1899. =3.= _Mich. Sta. Bul._ =169=:245. 1899. =4.= Waugh _Plum Cult._ 104. 1901. =5.= _Can. Exp. Farm Bul._ =43=:34. 1903. =6.= _Am. Pom. Soc. Rpt._ 57. 1907. Glass Seedling 2. _Glass Seedling_ 4, 5, 6.