TETRANDRIA MONOGYNIA, Els&agrUS, 



Lewis. Missouri Silver-tree. In the collection of 

 A. B. Lambert, Esq., are specimens from Dr. Pallas, 

 under the name of E. latifoiius, which approach very- 

 near to the present species ; but the leaves are longer, 

 and but slightly covered with that silvery substance 

 on the upper surface, which in the present one is equal 

 on both sides: besides, the flowers are generally aggre- 

 gate : it is probable that both belon?: to the same spe- 

 cies, different from £. latifoiius of Linnasus, which 

 I do not know. 



115 



146. HIPPOPHAE. Gen.pl.\50g. Sea Buckthorn. 



1. H. foliis ovatis acutiuscuHs, supra glabriusculis, subtus 



argenteo -pilosis lepidotisque : squamis sparsis ferru- 

 gineis. — IVilld. sp. pi. 4. p. 744. 

 Near lakes and rivers ; Canada to New York. \i . May. 



V. V. 



2. H. foliis ovatis obtusis utrinque glabris dense argenteo- 



lepidotis. 

 On the banks of the Missouri. M. Lewis. Tj . v.s. in 

 Herb. L^wis. c. Jr. This shrub resembles Elceagrus 

 argentea so much, that they might easily be mistaken 

 one for the other when without fruit ; but this species 

 bears really a berry, different from the drupa of the 

 other genus. The flowers are according to information 

 from Mr. Nuttall four cleft, and resemble those of 

 Elceagrus very much. 



canadensis. 



argentea. 



II. DIGYNIJ. 



147. PLANERA. Mich.Ji. amer. 2. p. 24/. 



1. Planera. U^illd. sp. pL 4. p. g67. 



P. Gmelini. A^ich.fl amer. 2. p. 24S. 



Anonyraos aqualica. Wall. Jl. car. 230. 



On the banks of rivers in both Carolinas. fj . May. v. v. 

 A tree resembling an Elm in its foliage very much j 

 the leaves are small, equal on their base and equallj*- 

 serrated ; the flowers appear before the leaves at the 

 end of the branches in close bunches, are small and of 

 a greenish-brown colour. 

 Jt2 



aquatica. 



