316 DICOTYLEDONOUS PLANTS. 



metis 4. FERTILE FL. Perianth none. Style 1. Nut com- 

 pressed. Monoeda. Tetrandria. 



1. B. cylindrica. Wittd. : leaves opposite, ovate-oblong, acuminate. 

 toothed, smooth ; flowers dioecious ; sterile spikes clustered, inter- 

 rupted ; fertile ones cylindrical ; stein herbaceous. 



HAB. Wet ground. Can. to Flor. June Aug. Z. .S/.m 

 2 3 feet high. Leaves petioled, 3-nerved. Flowers minute : 

 the fertile ones forming a compact cylindrical spike which is 

 1 2 inches long. 



2. B. lateriflora Muld. : leaves alternate, ovate-lanceolate, acuminate , 

 serrate, scabrous ; flowers lateral, clustered ; stem herbaceous. 



HAB. Shady woods. Penn. to Car. July. 1i. Stem smooth. 

 leaves on long petioles, 3-nerved, scabrous on both sides. Civs 

 ters axillary and lateral, few-flowered. 



ORDER CIX. ARTOCARPEjE. R. Broum. L/// /. 



Flowers monoecious, in heads or amenta. Perianth usual- 

 ly divided, sometimes tubular or entire. Stamens solitary or 

 several, straight. Ovary 1- or 2-celled, superior, rarely in~ 

 ierior ; ovule suspended ; style single, filiform ; stigma bifid. 

 Fruit usually a fleshy receptacle, covered by numerous nuts, 

 rarely reduced to a single flower. Seed suspended, solitary ; 

 embryo- straight or curved ; radicle pointing to the hilum. 



Trees, shrubs or herbs. Leaves alternate, toothed or lobed, 

 or entire. 



1. MORUS. Linn. 



Monoecious. Perianth 4-parted, lobes concave.. STERILE 

 FL. Stamens 4. FERTILE FL. Stigmas 2. Seeds 1 2, 

 covered by the fleshy perianth. Monoeda. Tetrandria. 



1. M, rubra Linn. : dioeci6us ; leaves cordate, ovate, acuminate, 

 often 3-lobed, equally serrate, scabrous, pubescent beneath ; fertile 

 aments cylindrical ; fruit purple. 



HAB. Woods. N. S. to Car. May. ^>. -A large tree with 



long virgate branches. Leaves often divided. Flowers, accord- 



. ing to Mr. Elliott, always dioecious. The fruit is esteemed by 



some, and the wood is remarkably durable. " Red Mulberry. 



2. M. alba Linn. : monoecious ; leaves deeply cordate, unequal at 

 base, ovate and lobed, unequally serrate, nearly smooth ; fruit white. 



HAB. Naturalized in various parts of the U. S. May. *?. A 

 tree from 20 to 30 feet high. Employed chiefly in raising the 

 silkworm. ; Mute Mulberry. 



