436 



TREES OF NORTH AMERICA 



A tree, sometimes 25 high, with a stout trunk covered with pale bark, spreading 

 and erect branches, and stout zigzag branchlets light green and villose at first, dull 

 red-brown and sparingly villose or pubescent at the end of their first year, becoming 

 dark or light gray-brown, and armed with many long straight purple shining ulti- 

 mately ashy gray spines l^'-3^', usually about 2-f long. 



Distribution. Southwestern Missouri; common near Webb City; well distin- 

 guished by the distinctly blue color of the small leaves, and by the dark crimson 

 hard fruits and the remarkable development of the spines unusual in this group. 



69. Crataegus induta, Sarg. Turkey Apple. 



Leaves oblong-obovate, acute, cuneate, rounded or rarely truncate at the broad 

 entire base, very coarsely and doubly serrate above, with glandular teeth, and slightly 

 and irregularly divided into broad acute lateral lobes, about one third grown when 

 the flowers open from the middle to the end of April and then thin, light yellow- 

 green and roughened above by short lustrous white hairs and hoary-tomentose 

 below, and at maturity thin, dark yellow-green and scabrate on the upper surface, 

 pale and tomentose or pubescent on the lower surface, particularly along the stout 

 midribs and 4 or 5 pairs of prominent primary veins, 3^-4' long, 2^'-3' wide ; their 

 petioles slender, more or less wing-margined at the apex, glandular, hoary-tomentose 

 while young, becoming sparingly villose in the autumn, l^'-l^ long. Flo-wers |' 

 in diameter, on slender tomentose pedicels, in broad many-flowered hoary-tomentose 

 compound corymbs; calyx-tube narrowly obconic, thickly coated with long densely 

 matted white hairs, the lobes small, acuminate, glandular-serrate, villose; stamens 



20; anthers small, rose color; styles 5, surrounded at the base by a broad ring of 

 snow-white hairs. Fruit ripening the middle of October, on stout villose pedicels, in 

 few-fruited clusters, short-oblong, full and rounded and villose at the ends, crimson 

 or reddish yellow, lustrous, marked by small pale dots, |'-2' in diameter; calyx 

 prominent, with a short tomentose tube and much enlarged coarsely glandular-ser- 

 rate hairy erect incurved lobes often deciduous from the ripe fruit; flesh thick, 

 orange-colored, with an astringent subacid flavor; nutlets 5, thin, rounded and 

 slightly grooved on the back, y^g'-f ' long. 



A tree, sometimes 26 high, with a trunk often a foot in diameter, covered with 



