118 MISSOURI BOTANICAL GARDEN. 



ing dark dull purple and pubescent in their first season and 



grayish brown the following year, and armed with numerous 



very slender straight purple ultimately gray spines 3.5-5 cm. 



long. 



Bluffs and rocky banks of small streams, Montecr, Shannon 



County, B. F. Bush, (No. 277 type) July 29, 1899, (Nos. 383 

 and 387) May 25, 1900, (No. 504) May 16, 1901, (Nos. 3, 3 A, 

 3 B, 3 C, 3 E, 3 F, 3 H, 3 I) May and October 1905; Birch 

 Tree, Shannon County, B. F. Bush, (No. 293, described as a 

 slender tree) July 29, 1899, (No. 390) May 2G, 1900; Pleasant 

 Grove, Ripley County, B. F. Bush, (No. 455, described as 

 a slender tree) August 10, 1899. 



4. Crataegus globosa, n. sp» 



Leaves slightly obovate to oval or ovate, acuminate, gradually nar- 

 rowed and concave-cuneate at the entire base, coarsely doubly serrate 

 above, with straight glandular teeth, and occasionally very slightly di- 

 vided above the middle into 3 or 4 pairs of small acute lobes; nearly fully 

 grown when the flowers open about the middle of May and then thin, yel- 

 low-grccn, covered above by short white hairs and pubescent below, and at 

 maturity tliin, dark ycUow-grcen, lustrous and scabrate on the upper 

 surface and pale and pubescent on the lower surface especially along the 

 slender yellow midribs and primary veins, 6-8 cm. long and 4.5-5.5 cm. 

 wide; jxitioles stout, narrowly w^mg-margincd to below the middle, villose 

 early in the season, becoming pubcrulous, 1-1.2 cm. in length; leaves on 

 vigorous shoots ovate to oval, more coarsely serrate, rarely slightly lobed, 

 often 9-10 cm. long and 6-7 cm. wide. Flowers 1.4-1.5 cm. in diameter, 

 on slender hoary-tomentose pedicels, in compact mostly 12-15-flowered 

 corymbs, with lincar-obovate to hnear minutely glandular bracts and 

 bractlets fading brown and often persistent until the flowers open, the 

 long slender tomentose lower peduncles from the axils of upper leaves; 

 calyx-tube narrowly obconic, densely tomentose, the lobes narrow, acu- 

 minate, finely glandular-serrate, pubescent on the outer, villose on the 

 inner surface, reflexed after anthcsis; stamens 20; anthers large, rose 

 color; styles 2, surrounded at the base by a narrow ring of pale hairs. 

 Fruit ripening early in October, on stout slightly hairy drooping pedicels, 

 in many-fruited clusters, often persistent until after the leaves fall, globose 

 or short-oblong, light orange-red, lustrous, marked by large dark dots, 

 7-8 mm. in diameter; calyx little enlarged, with a wide shallow cavity, 

 and slender closely appressed often deciduous lobes; flesh thin, yellow, 

 dry and hard, becoming soft after frost; nutlets 2, full and rounded at the 

 ends, ridged on the back, with a broad low slightly grooved ridge, pene- 

 trated on the inner face by very large shallow cavities, 5.5-6 mm. long, 



and 3.5-4 mm. wide. 



