230 TREES AND SHRUBS. 



nmturity; those of vigorous shoots elliptic or elliptic-oval to ovate-oblong, broadly cuneate at the base, sometimes nearly rounded 

 Tthe apex, usually coarsely serrate and sometimes incisely serrate, up to 7 centimetres Jong and up to 3.5 centimetres broad, 

 thinly pubescent below while young, at maturity nearly glabrous except those at the end of the branches which more or less 

 retain their pubescence ; petioles slender, from 1 to 2 centimetres in length, puberulous. Flowers usually from two to four, about 

 2.5 centimetres in diameter ; pedicels slender, slightly villose ; calyx-tube glabrous or with a few hairs near the base, rarely villose 

 or tomentose- sepals narrowly triangular-ovate, slightly longer than the tube ; petals oval, the blade about 1 centimetre long 

 and 7 millimetres broad, narrowed into a slender claw 3 millimetres in length ; stamens about one-third shorter than the petals ; 

 styles villose below the middle, connate only at the base. # # 



Louisiana- Wiunfield, Winn Parish, R. S. Cocks and C. S. Sargent, April 6, 1913 (type); Covington, Saint Tammany Parish, 

 R S Cocks, March 28, and April 27, 1913; Bayou Lacombe, Saint Tammany Parish, R. S. Cocks, April, 1908 (No. 1779); 

 West Feliciana Parish, R. S. Cocks, April 20, 1913; R. S. Cocks and C. S. Sargent, April 4, 1913. Mississippi: Washington, 

 five miles east of Natchez, Adams County, C. S. Sargent, April 9, 1913. 



This variety differs from the type chiefly in its pointed leaves, in the slightly villose pedicels and in the slight pubescence on 

 the under side of the young leaves; it approaches glabrescent forms of M. ioensis, var. Palmeri Rehder, and perhaps still more 

 M. ioensis, var. Bushii Rehder. The specimens from Natchez, as well as those from Covington and Bayou Lacombe, have the leaves 

 generally somewhat larger and broader and more frequently obtuse or obtusish at the apex. They form a transition toward 

 typical .1/". coronaria. 



7. Malus bracteata, n. sp. 



Leaves elliptic-ovate to oblong-ovate, acute or those of the flowering branchlets acutish or obtusish, serrate or incisely serrate, 

 sometimes slightly lobed near the base, from 4 to 8 centimetres long and from 2.5 to 3.5 centimetres broad, those of vigorous 

 shoots usually ovate, with recurved very short lobes on each side, from 8 to 9 centimetres long and from 5.5 to 6 centimetres 

 broad ; when they unfold thinly covered below with a floccose tomentum, soon becoming glabrous, and at maturity subchar- 

 taceous, bright yellow-green and somewhat lustrous above, light green below, or those at the ends of vigorous branches slightly 

 pubescent below particularly on the veins ; petioles from 1.5 to 2.5 centimetres in length, glabrous or on vigorous shoots slightly 

 pubescent, usually reddish like the midribs below. Racemes from three- to five-flowered ; pedicels about 2 centimetres long, 

 glabrous or nearly glabrous, with subulate bractlets from 5 to 8 millimetres in length, persisting during anthesis ; calyx-tube 

 glabrous ; calyx-lobes lanceolate, slightly longer than the tube, villose within, glabrous without ; petals oval, from 1 to 1.4 centi- 

 metres long, narrowed into a slender claw, deep pink; stamens about one-third shorter than petals; styles slightly shorter than 

 the stamens, villous in their lower third, connate at the base. Fruit depressed-globose, from 2 to 2.3 centimetres high and from 

 2.5 to 3 centimetres in diameter, with a shallow cavity at the base and a very shallow slightly corrugated cavity at the apex, 

 yellowish green, slightly viscid. 



A tree, from 5 to 10 metres tall, with stout crooked branches forming a broad head, a trunk about 2.5 decimetres in diameter 

 covered with dark bark broken into small and thin closely appressed scales, and glabrous branchlets on vigorous shoots pubescent 

 toward the apex, becoming reddish brown and lustrous at the end of the season and later'dull reddish brown and armed with a 

 few stout spines or unarmed. Winter-buds red-brown, lustrous, glabrous or slightly pubescent. Flowers at the end of April. 

 Fruit ripens the beginning of October. 



Missouri : Campbell, Dunklin County, B. F. Bush, April 22, 1912 (No. 6631 A, type), April 19, 1912 (Nos. 6593, 6595), April 20, 

 1912 (No. 6618), April 22, 1912 (No. 6628), September 6, 1910 (No. 6211), September 13, 1910 (No. 6332), October 6, 1912 

 (Nos. 6883, 6896), B. F. Bush and C. S. Sargent, October 3, 1912; Monteer, Shannon County, October 20, 1911, B. F. Bush, 

 October 20, 1911 (No. 6518). 



This species differs from the following species in its less deeply serrate or lobed leaves, those of the flowering branchlets being 

 usually only slightly serrate, in the usually only slightly pubescent leaves at the end of the vigorous shoots, and in the bracteolate 

 inflorescence. In the partly glabrous or nearly glabrous leaves and in the glabrous oalyx it resembles M. fragrans, which 

 however, has the mature leaves quite glabrous. It suggests a glabrescent form of M. ioensis Britton or a pubescent form of 

 M. fragrans Rehder. 



8. Malus ioensis, Britton, Man. 516 (1901).— Sargent, Man. 354, f. 3, 278. 



Pyrus coronaria,™. ioensis, Wood, Class Book, newed. 333 (1860). — Sargent, Silva N. Am. iv. 72, t. 168. 



Pyrus ioensis, Bailey, Am. Gard. xii. 473, f. 7, 8 (1891). — Bean, Bot. Mag. cxxxix. t. 8488. 



Mains coronaria, var. ioensis, Schneider, III. Handb. Laubholzk. i. 724, f. 401, q-r 2 (1906). 



The typical form of this species ranges from Minnesota and Wisconsin to Nebraska, Kansas and Missouri and, if the varieties 

 are included, south to Texas. Malus ioensis is a very variable species and the most extreme forms look very distinct, but these 

 are so closely connected by intermediate forms that it seems impossible to separate them specifically. 



None of the specimens from Missouri seem to represent the typical M. ioensis. Specimens from Allenton and from Williams- 

 ville, and some of those from Courtney, are transitions to M. fragrans, while specimens from Monteer and some of those from 

 Courtney approach M. ioensis var. Palmeri, and a specimen (No. 6570) collected by Bush at Campbell approaches M. lancifolia. 



Malus ioensis, var. Palmeri, Rehder, Sargent, Trees and Shrubs, ii. 142 (1911). 



Missouri: Webb City, Jasper County, E. J. Palmer, April 28, 1909 (No. 1795, type), September 22, 1901, August 6, 1909 (No. 

 2605), April 19, 1911 (Nos. 3347, 3348), September 17, 1911 (No. 3474), April 23, 1911 (No. 3349), July 16, 1911 (No. 3431), 

 October 8, 1911 (No. 3495), April 28, 1912 (Nos. 3599, 3600, 3608, 3616); Prosperity, Jasper County, E. J. Palmer, April 21, 

 1912 (No. 3596); Smithfield, Jasper County, May 5, 1912 (No. 3641); Independence, Jackson County, B. F. Bush, May 6, 1900 



