BLUE-GREEN WARBLER. 259 



undetermined where to alight. I have found no difference between the 

 sexes as to external appearance. 



The plant on which I have figured a male is found in Louisiana, 

 growing along the skirts of woods and by fences. It is called the Spa- 

 nish Mulberry. It is a herbaceous perennial plant, attaining a height of 

 from four to eight feet. The fruits are eaten by children, but are insipid. 



Sylvia rara, Blue-gheen Warbler, Wils. Aiwev. Ornith. vol. iii.'p. 119. PI. 2?. 

 f]g. 2 Ch. Bonaparte, Synops. of Birds of the United States, p. 82. 



Adult Male. Plate XLIX. 



BiU longish, nearly straight, depressed at the base, tapering to a 

 point. Nostrils basal, oval, half concealed by the feathers. Head and 

 neck of ordinary size. Body ovate. Feet of ordinary length, rather 

 slender ; tarsus compressed, covered anteriorly with a few long scutella, 

 acute behind, rather longer than the middle toe ; toes scutellate above, 

 free ; claws arched, slender, much compressed, acute. 



Plumage blended, soft and tufty. Wings longish, little curved, the 

 first and second quills longest. Tail shortish, romided, of twelve rather 

 acute feathers. 



Bill dark brown above, light blue beneath. Iris dark brown. Feet 

 light blue. General colour of the upper parts light greenish-blue, of the 

 under parts white. A white streak over the eyes. Tips of the two first 

 rows of wing-coverts white, forming two bands across the wing. Quills 

 blackish-brown, their outer margins blue. Tail blackish-brown, the outer 

 feathers having a white patch on the inner web near the end. 



Length 4<f inches, extent of wings 8 ; bill along the ridge |, along 

 the gap \ ; tarsus f . 



The Spanish Mulberry. 



Callicarpa AMERICANA, WilM. Sp. PI. vol. i. p. 619. Pursh, FL Amer. vol. i. 

 p. 97 Tetrandria Monogynia, Linn. Vitices, Juss. 



A perennial herbaceous plant, with oval, serrate leaves, which are 

 downy beneath ; sessile cymes of red flowers, and globular red berries, 

 arranged apparently in dense whorls. It grows in dry gravelly or sandy 

 soil, in Virginia, Carolina, and Louisiana. 



II 2 



