CRATAEGUS IN MISSOURI. 117 



A shrub 2 or 3 m. high, with stems sometimes 3 cm. in 



diameter, small ascending branches, and slender nearly straight 

 branchlets light orange-green and thickly covered with long 

 white hairs when they first appear, becoming bright chestnut- 

 brown, lustrous and marked by pale lenticels in their first 

 season and dull red-brown the following year, and armed 

 with numerous very slender nearly straight purplish spines 

 3-4 cm. long, persistent and compound on old stems. 



Limestone cliffs of Spring River, Carthage, Jasper County, 

 E. J. Palmer, (No. 9 D type) May 24, and October 27, 1901, 

 October 27, 1902. 



3. Crataegus missouriensis Ashe, Bull. N. C. College of 



Agriculture and Mechanic Arts, No. 175, 110 (1900). 



Leaves ovate to obovate, acute and short-pointed at the apex, cuneate 

 at the entire base, and coarsely often doubly serrate, with straight glandu- 

 lar teeth; nearly fully grown when the flowers open about the middle of 

 May and then thin, yellow-green, lustrous and roughened above by short 

 white hairs and paler and villose below especially on the slender midribs 

 and primary veins, and at maturity thin, dark yellow-green, lustrous and 

 scabrate on the upper surface, pale and still villose on the lower surface, 

 3,5-4.5 cm. long and 2.5-3 cm. wide; petioles slender, narrowly wing- 

 margined, densely villose wliile young, often becoming nearly glabrous, 

 4-6 mm. in length; leaves on vigorous shoots oval, acute or acuminate 

 at the ends, more coarsely serrate, occasionally slightly lobed, frequently 

 6-7 cm. long and 4-5 cm. wide. Flowers bad-smelling, 1.2-1.5 cm. in 

 diameter, on slender hoary-tomentose pedicels, in small compact mostly 

 3-8-flowered tomentose corymbs, the lower peduncles from the axils of 

 upper leaves; calyx-tube narrowly obconic, hoary-tomentose, the lobes 

 long, slender, acuminate, laciniately glandular-serrate, sparingly villose 

 or glabrous on the outer surface, villose on the inner surface, reflexed after 

 anthesis; stamens 20; anthers rose color; styles 3-5, surrounded at the 

 base by a ring of pale hairs. Fruit ripening early in October, on stout 

 erect or spreading slightly hairy pedicels, solitary or in few-fruited clus- 

 ters, short-oblong to oval or slightly obovate, bright orange-red, lustrous, 

 11-12 mm. long and 9-10 mm. in diameter; calyx prominent, with a short 

 tube, a deep narrow cavity tomentose in the bottom, and elongated spread- 

 ing lobes; flesh thin, yellow, sweet and succulent; nutlets 3-5, gradually 

 narrowed and rounded at the ends or acute at the base, ridged on the 

 back, with a broad high grooved ridge, penetrated on the inner faces by 

 very shallow broad cavities, 4-4.5 mm. long, and 3-3.5 mm. wide. 



A shrub 1-2 m. high^ with slender branchlets thickly coated 

 when they first appear with long matted white hairs, becom- 



