TREES AND SHRUBS. 



MALUS GLAUCESCENS, Rehd. 



Malus glaucescens, n. sp. 



Leaves triangular-ovate or ovate, acute, short-acuminate or rounded at the apex, truncate or 

 subcordate at the base, those of the flowering branchlets more or less lobed and coarsely serrate, 

 w ; th abruptly acuminate teeth, their lobes triangular, broadly ovate and abruptly acuminate, 

 the lowest pair usually the largest ; when they unfold bronze color and covered with thin floccose 

 tomentum, soon becoming quite glabrous, dull yellowish green on the upper surface, glaucescent on 

 the lower surface, from 4 to 9 centimetres long and from 3 to 8 centimetres wide, with four to seven 

 pairs of veins impressed above and prominent beneath ; petioles slender, slightly villose at first, 

 soon becoming glabrous, from 2 to 4 centimetres in length ; stipules filiform, purplish, slightly vil- 

 lose or glabrescent, about 1 centimetre long, deciduous. In the autumn the leaves turn dull yellow 

 or dark purple before falling. Flowers from about 3.5 to 4 centimetres in diameter, appearing 

 after the leaves are almost fully grown, on slender glabrous pedicels from 2 to 3 centimetres long, 

 in from five- to seven-flowered umbel-like racemes ; calyx thinly coated on the outer surface with 

 floccose caducous pubescence, or glabrous or nearly so, the lobes oblong-lanceolate, long-acuminate, 

 densely tomentose on the inner surface, slightly longer than the obconic tube ; petals oval, rounded at 

 the apex, abruptly contracted below into a long claw, white or rose color, from 1.5 to 2.2 centimetres 

 long and from 1.1 to 1.4 centimetres broad; stamens about one third shorter than the petals ; styles 

 five, about as long as the stamens, densely villose below and connate at the base for about one fourth 

 of their length. Fruit depressed-globose, with a shallow uniform concave depression at the base and 

 a shallow only slightly corrugated cavity at the apex, yellow when ripe, fragrant, covered with a 

 waxy viscid exudation, from 3 to 4 centimetres in diameter and from 2.5 to 3 centimetres high. 



An arborescent shrub or small tree, rarely exceeding 5 metres in height, with a slender trunk 

 sometimes 2 metres tall and 1.5 decimetres in diameter, spreading spiny branches forming an open 

 head, slender branchlets nearly glabrous or, when they first appear, slightly pubescent, and bright 

 red-brown in their first and second years ; older branches clothed with smooth dark grayish brown 

 bark marked with yellowish lenticels. Bark of the trunk dark gray with shallow longitudinal 

 fissures, finally separating into thin small scales. Winter-buds conical, light reddish brown 

 glabrous, hardly more than 5 millimetres in length, with several oblong-lanceolate acute scales, 

 those of the outer ranks villose on the inner surface near the apex. Flowers appear after the middle 

 of May in the north and at the beginning of May in North Carolina, and about a week earlier than 

 those of Malus coronaria. The fruit ripens and falls in September two or three weeks earlier than 

 that of Malus coronaria. 



New York : Rochester, Maple Grove Park, J. Dunbar, May 25, 1904 and 1905 (type) ; Seneca 

 Park, May 19, 1905, September 26, 1906, October 26, 1910 ; South Buffalo, B. H. Slavin, Sep- 

 tember 1, 1910 ; Cattaraugus County, Salamanca, October 6, 1910 ; Ontario County, Canandaigua, 

 September 2, 1910 (all in herb. Arnold Arboretum). Pennsylvania : Alleghany County, South 

 Fayetteville Township, 8. W. Knipe, May, 1871, and May, 1900 ; Shafer Farm near Carnot, J. A. 

 Shafer, May 18, 1902 (in herb. Carnegie Mus.). North Carolina : Haywood County, Jonathan's 

 Creek, C. 8. Sargent, September, 1888; Biltmore, May 3 and September 4, 1897 (No. 1297 B); 

 Biltmore, October 5, 1910, T. G. Harbison (Nos. 191, 192). Alabama: De Kalb County, Valley- 

 head, T. G. Harbison, October 7, 1910 (Nos. 194 and 196) (in herb. Arnold Arboretum). 



