250 UNITED STATES GEOLOGICAL SUEVEY— TEETIAKY FLOltA. 



uhich the species was establisliod. They are at least twenty (•cutiiuetcrs 

 long, eight centimeters broad at the niitUUe, oblong-oval, and a])i)arenlly 

 rounded to an acumen ; the jxiint is broken Th" essential character recog- 

 nized in the fragments found at tiie Raton Mountains and at Golden is the 

 direction of the secondary nerves, which, close, parallel, simple, pass straight, 

 upward at an angle of divergence of 50° to G0° from the midrib, and curve 

 near the borders, where they become effaced. This type of nervation is the 

 same in M. huequalis, Sap. (Sez. FL, p. 107, pi. xi, figs. 4-7). 



Habitat. — Fischer's Peak, Raton Mountains, New Mexico {Dr. F. V. 

 Haydf.n). 



Iflagiaolia attenuaia, Web. 

 Plate XLV, Fig. 6 



Magnolia atlenuata, Web., Palaeont., ii, Sopar.-Abdr., p. 78, pi. v, fig. 1. 

 Terminalia liadobojensis (Ung.), Lesqx., Supplement to Annual Report, 1871, p. 1.5. 



Leaf oblanceolate, gradually narrowed from the middle to the base; lateral veins open, distant, 

 camptodrome. 



The relation of this leaf is not positively ascertained, for I have been 

 unable, as Weber also, to find any fragment of its top. The leaf is not coria- 

 ceous, but rigid, with borders very entire ; the preserved lower part is ten 

 centimeters long, its width where it is broken four and a half centimeters, 

 whence it is gradually narrowed downward to the petiole. The midrib is 

 not thick, but straight ; the secondary nerves, on an open angle of diverg- 

 ence of 50°, curving in passing toward the borders, arc distant, alternate, 

 mostly simple, but marked by the base of thick nervilles about in right angle, 

 and separated by a few short tertiary veins. In comparing this fragment 

 with Weber's description and figure {lor. ciL), I can sec no difference, except 

 in the somewhat more open angle of divergence of the secondary nerves 

 in the European leaf 



Habitat. — Fischer's Peak, Raton Mountains, New Mexico {Dr. F. V. 

 Hayckn). 



ANONACEiE 



ASIMINA, Adans, 

 Like the former genus, this one is in the jjresent flora limit(Ml to tlie 

 North American continent, and represented by few species. One, A. trilohi, 

 Dunal, the Papaw, is very common on the bottom-lands of the Middle and 

 Southern States as far south as Florida; three other species an' liniilrd in 

 llicir range; to the Southern States; a fifth inlial)its Mexico. 



