r 



56 MISSOURI BOTANICAL GARDEX 



A tree 5-9 m. high, with a trunk 7.5-15 cm. in diameter, 

 covered with dark scaly bark, small spreading branches form- 

 ing a flat-topped head, and stout slightly zigzag branchlets 

 dark orange-green and marked by numerous pale lenticels 

 when they first appear, becoming dull orange-brown in their 

 first season and light gray-brown the following year, and 

 armed with few slender straight or slightly curved purple 

 shining spines 2.5-3 cm. long. 



Gravelly banks of small streams, Monteer, Shannon County, 

 common; B. F. Bush (No. G B type), May 14 and October G, 

 1905, (No. 6) May 15 and October 3, 1905, May 2G, 1907, 

 (No. 6 A) May 12 and October 3, 1905, (No. 6 C) May 27, 

 1907 ; Grandin, Carter County, B. F. Bush (No. 2) May 8 

 and October 11, 1905, (Nos. 2 A, 2 B and 2 C) May and October 

 1905. 



IG, Crataegus inonosperma, n, sp. 



Glabrous with the exception of the hairs on the young leaves and calyx- 

 lobes. Leaves narrowly obovate, acute, acuminate or rarely rounded at 

 the apex, gradually narrowed and concave-cuneate at the slender acuminate 

 entire base, and sharply serrate above, with long straight glandular teeth; 

 nearly fully grown when the flowers open from the 10th to the middle of 

 May and then thin, dark yellow-green, very lustrous and slightly villose 

 along the midribs above and pule bluish green and glabrous below, and 

 at maturity subcoriaceous, dark green and very lustrous on the upper 

 surface, paler and bluish green on the lower surface, 5-6 cm. long and 

 2.5-3 cm, wide, with prominent yellow midribs, and very slender 

 mostly prominent primary veins; petioles stout^ narrow-wing-marghicd 

 nearly to the base, 6-7 mm. in length; leaves on vigorous slioots ovate 

 to slightly obovate, acute, rounded or abruptly pointed at the apex, 

 coarsely doubly serrate, and often 7-8 cm, long and 4.5-5 cm, wide. Flow- 

 ers about 1.5 cm. in diameter, on long slender pedicels, in wide lax mostly 

 10-I2-flowered corymbs, the elongated lower peduncles from the axils 

 of upper leaves; calyx-tube narrowly obconic, the lobes long, slender, 

 acuminate, minutely dentate, very sparingly villose on the inner surface, 

 reflexed after anthesis; stamens 10; anthers pale yellow; styles 1 or 

 rarely 2. Fruit ripening early in October, on long slender drooping pedicels, 

 in few-fruited clusters, oval to ovate, dull red, marked by numerous pale 

 dots, 1-Ll cm. long and D-10 mm. in diameter; calyx prominent, with a 

 deep narrow cavity, and erect and incurved persistent lobes; flesh thin, 

 yellowish green, dry and hard; nutlet 1, acute at the apex, full and 

 rounded at the base, slightly 2-ridgcd, 7.5-8 mm. long, and 5-6 mm. in 

 diameter. . 



