30 THE LATER EXTINCT FLORAS OF NORTH AMERICA. 



Sabal imperialis Dn. 



PI. XVI, figs. 6, 6a. 



Trans. Roy. Soc. Canada, Vol. I, Sec. IV, 1882 [1883], p. 26, PL VI; Vol. XI, Sec. 



IV, 1893 [1894], p. 57, PI. XIV, fig. 61. 

 Sabal sp. Newb. Boston Journ. Nat. Hist., Vol. VII (1863), p. 515. 



"Fragments only of a fan palm are contained in the collections made 

 at Nanaimo; if, as now appears probable, the beds containing- it are 

 Cretaceous, it will doubtless prove to be a new species. 



"The only tangible characters exhibited in the specimens yet obtained 

 are in the nervation. 



"The nerves are very fine, nearly sixty in each fold — six stronger Ones 

 on each side of the midrib, and between each two of these three finer ones, 

 of which the middle is strongest." 



Formation and locality: Cretaceous (Puget Sound group). Nanaimo, 

 Vancouvers Island. 



Sabal Powellii Newb. 



PI. LXIII, fig. 6; LXIV, figs. 1, la. 

 Proc. U. S. Nat. Mus., Vol. V (March 21, 1883), p. 504. 



"Leaves of medium size, 4 or 5 feet in diameter, petiole smooth, 

 unarmed, terminating above in a rounded or angular area from which the 

 folds diverge, beneath concavely narrowing to form a spike 3 to 4 inches 

 in length ; rays about fifty, radiating from the end of the petiole, perhaps 

 sixty in the entire leaf compressed to acute wedges where they issue from 

 the petiole; strongly angled and attaining a maximum width of about 1 

 inch; nerves fine, about twelve stronger ones on each side of the keel, 

 with finer intermediate ones too obscure for enumeration." 



These leaves, as will be seen by the figures given, bear considerable 

 resemblance to those described by Lesquereux under the name of Flabel- 

 laria Focenica (Tert. Fl, p. Ill, PL XIII, figs. 1-3), but a large number of 

 specimens in the collections made at Green River, agreeing among them- 

 selves in all essential particulars, enable us to clearly define the species and 

 show its distinctness from any yet found on this continent. From Flabel- 

 laria Eocenica it differs in having a larger number of folds and a longer 

 point of support on the under side of the leaf. From Sabal Campbelli Newb. 



