Arceuthobium. LORANTHACETE. 655 



joints dilated at the summit into a truncate sheath. Flowers small, terminal 

 and lateral, 3 or more together. — The plant grows only on trees of tlie order 

 Conifene. 



A. Oxycedri (Bieberst. 1. c.)—IIook. ! jl. Ror.-Am. \.p. 278, l. 99. A. 

 Americaniim, ISuU. mss. 1 Viscum Oxycedri, DC, jl. Ft. ed. 3. p. 901 ; 

 Bieberst. Jl. Taur.-Cauc; DC. jrrodr. 4. ^>. 2H3. 



On pine trees, Oregon, Dou>rlas ! and east to Hudson's Bay in lat. 57'', 

 Dous^las Sf Drummond, fide Hook. — We have not seen specimens of Mr. 

 Nuttall's A. Ainericanum, and his notes leave us uncertain whetlier he con- 

 siders his plant (from the Blue Mountains of Oregon) a ditli'rcnt species from 

 that of Hooker, or views the American plant generally as distinct from that 

 of the Old World. His character accords for tlie most part with specimens 

 received from Hooker, in which the sheaths are almost all truncate. Mr. 

 Nuttall's plant is said to have a white berry : the fruit of Viscum Oxycedri 

 is said by De CandoUe to be blue. 



