398 CLASS XXII. ORDER XIII. 



are two or three inches long, appear in May. Wood much like 

 the last. — Camhridge, Milton. 



PopuLus CANDicANs. Ait. Buliii of Gilcad Tree. 



Leaves cordate, ovate, acuminate, obtusely and un- 

 equally serrate, whitish and somewhat three nerved 

 beneath ; petioles hairy ; buds resinous ; branches 

 round. 



This poplar is abundantly cultivated in New England, and 

 proves troublesome by the rapidity with which it spreads. I 

 have never seen it in woods. 



MONADELPHIA. 



410. JUNIPERUS. 

 JuNiPERUs Virginia NA. Red Cedar. 



American Medical Botany, PI. xlv. 



Tntnk arboreous, upper leaves imbricated in four 

 rows, ovate, pungently acute. 



The Red Cedar, sometimes called in this vicinity by the name 

 of Savin, is a common tenant of dry. rocky hills. When full 

 grown, it is a middling sized tree. Trunk straight, decreasing 

 rapidly from the ground, and giving off many horizontal branch- 

 es. Its surface is generally unequal and disfigured by knots. 

 The small twigs are covered with minute, densely imbricated 

 leaves, which increase in size as the branch grows, till they are 

 broken up and confounded with the rough bark. These leaves 

 are fleshy, ovate, concave, rigidly acute, marked with a small, 

 depressed gland on the middle of their outer side, in pairs, 

 united at base to each other and to the pairs above and below 

 them. A singular variety sometimes appears in the young shoots, 

 especially those which issue from the base of the trees. This 

 consists in an elongation of the leaves to five or six times their 

 usual length, while they become spreading, acerose, considera- 

 bly remote from each other, and irregular in their insertion, be- 

 ing either opposite or ternate. These shoots are so dissimilar 

 to the parent tree, that they have been repeatedly mistaken for 

 individuals of a different species. The barren flowers grow in 

 small oblong aments, formed by peltate scales with the anther 



