106 



MISSOURI BOTANICAL GARDEN, 



cm. in length; leaves on vigorous shoots more coarsely serrate and more 

 deeply lobed, often 10-12 cm. long and 7-9 cm. wide. Flowers about 

 1.8 cm. in diameter, on stout hoary-tomentose pedicels, in narrow compact 

 tomentose mostly 5- or 6-flowered corymbs, with lanceolate to linear 

 acuminate glandular green bracts and bractlets often persistent until after 

 the petals fall, the long lower peduncles from the axils of upper leaves; 

 calyx-tube narrowly obconic, hoary-tomentose, the lobes long, slender, 

 acuminate, laciniately glandular-serrate, densely villose, reflexed after 

 anthesis; stamens 15; anthers pale yellow; styles 5. Fruit ripening in 

 October, on long stout slightly hairy pedicels, in drooping few-fruited 

 clusters, oval, crimson, lustrous, marked by small pale dots, densely villose 

 when fully grown, becoming nearly glabrous late in the autumn, about 

 1.5 cm. long and 1.2 cm. in diameter; calyx prominent, with a short tube, 

 a very deep narrow cavity, and spreading or incurved lobes dark red and 

 nearly glabrous on the upper sidej flesh thick, yellow, dry and hard; 

 nutlets 5, narrowed and rounded at the apex, acute at the base, rounded 

 and sometimes obscurely ridged on the back, only 5-5.5 mm, long, and 

 4 mm. wide. 



A tree 7-8 m, high, with stout slightly zigzag branchlets 

 thickly coated with hoary tomcntum when they first appear, 

 becoming light orange-brown and marked by pale lenticels in 

 their first season, and light red-brown and lustrous the follow- 

 ing year, and armed with slender slightly curved purplish 



spines 5,5-G cm. long. 



Low moist soil near streams, Webb City, Jasper County, 

 E. J. Palmer and C. S. SarqenL (No. 11 D type) October 2, 



1901, E. J. 1 

 E. J. Palmer 



12 



1901, May 4, 1902, (No. 11) 

 , (No. 11 B) ^. J. Palmer, Sep- 

 J. Palmer. November 1. 1901, 



April 



of 



group 



faces 



5. Crataegus umbrosa, n. sp. 



Leaves ovate, acuminate, rounded, truncate or abruptly cuneate at the 

 broad base, coarsely often doubly serrate, and usually divided into 4 or 

 5 pairs of wide acuminate spreading lobes; about one-third grown when 

 the flowers open from the middle to the 20th of April and then thin, dark 

 yellow-green and covered above with soft white hairs and hoary-tomentose 

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

 face and tomentose on the lower surface especially on the slender midribs 

 and primary veins, 7-8 cm. long and 5-5.5 cm, wide; petioles slender, 



