100 TREES OF NEW ENGLAND. 



Inflorescence. April to May. A p] tearing before the leaves 

 from lateral buds of the preceding season, in drooping racemes; 

 calyx lobes 7-8, broad-triangular, with rounded edges and 

 a mostly obtuse apex ; pedicels thread-like, jointed ; stamens 

 5-10, exserted, anthers purple, ovary 2-styled ; stigmas re- 

 curved or spreading. 



Fruit. Samara ovate, broadly oval, or obovate, pubescent, 

 margin densely fringed, resembling fruit of U. Americana but 

 somewhat larger. 



Horticultural Value. Hardy throughout New England ; 

 prefers a moist, rich soil, in open situations; less variable in 

 habit than the American elm and a smaller tree with smaller 

 foliage, scarcely varying enough to justify its extensive use 

 as a substitute. Not often obtainable in nurseries, but readily 

 transplanted, and easily propagated from the seed. 



Plate L. Ulmus racemosa. 



1. Winter buds, at the time the flowers open. 



2. Flowering branch. 



3. Flower, side view. 



4. Flower, side view, perianth and stamens partly removed. 



5. Fruiting branch. 



Celtis occidentalis, L. 



Hackberry. Nettle Tree. Hoop Ash. Sugar Berry. 



Habitat and Range. In divers situations and soils ; woods, 

 river banks, near salt marshes. 



Province of Quebec to Lake of the AVoods, occasional. 



Maine, not reported ; New Hampshire, sparingly along 

 the Connecticut valley, as far as Wells river ; Vermont, 

 along Lake Champlain, not common ; Norwich and Windsor 

 on the Connecticut (Eggleston) ; Massachusetts, occasional 

 throughout the state ; Khode Island, common (Bailey) ; 

 Connecticut, common (J. N. Bishop). 



South to the Gulf states ; west to Minnesota and Missouri. 



