CRATAEGUS IN MISSOURI. 



95 



patra 



Glabrous with the exception of the hairs on the young leaves. Leaves 

 ovate, acuminate, usually cuneate or rarely rounded at the frequently 

 unsymmetrical base, coarsely often doubly serrate above, with straight 

 glandular teeth, and sUghtly divided into 5 or 6 pairs of small acummate 

 spreading lobes ; more than half-grown when the flowers open about the 

 1st of May and then thin, yellow-green, smooth, lustrous and furmshed 



with ( 

 below 



5-6 



4-4.5 cm. wide, with 



arching obUqucly to the points of the lobes ; petioles slender, slightly wmg- 

 margined at the apex, glandular, with minute often persistent glands, 

 2.5-3 cm. in length; leaves on \igorous shoots thicker, ovate, rounded, 



wide 



6-8 



petioles 



pedicels 



ymbs, with 



bracts and bractlets mostly deciduous before the flowers open, the long 

 lower peduncles from the axils of upper leaves; calyx-tube narrowly 

 obconic, the lobes gradually narrowed from the base, short, wide, mmutely 

 glandular-dentate usually only near the middle, reflexed after anthesis; 

 stamens 20 ; anthers pale yellow ; styles 3-5. Fruit ripening the middle 

 of October, on stout spreading or drooping pedicels, in few-fruited clusters, 

 short-oblong or slightly obovate, full and rounded at the ends, dull green, 

 pruinose, marked by large dark dots; calyx little enlarged, with a short 

 tube, a deep wide cavity, and spreading and sometimes slightly incurved 

 lobes, their tips often deciduous from the ripe fruit; flesh thick, green, dry 

 and hard; nutlets usually 3 or 4, gradually narrowed at the ends, acute 

 at the apex, rounded at the base, slightly ridged on the back, about 6 mm. 



4-A 



with 



in 



diameter, covered with dark bark broken into closely 



formin 



open irregular head, and slender nearly straight or zigzag 

 branchlets dark orange-green more or less tinged with red 

 and marked by pale lenticcls when they first appear, becom- 

 ing light chestnut-brown and very lustrous in their first 

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

 with slender straight or curved purplish shining spines 2-3.5 



cm. long. • ri 



River des Peres bottoms, Carondelet, St. Louis County, 

 H. Eggert, May 9, 1887, C. S. Sargent, September 26, 1900, 

 J. IL Kellogg (No. 9 A type), May 7, 1903, May 3 and October 



