//•///, T). x<>n L ,tlon* nf -V. "■ Sjh ■■:. g of Fossil t 15 



The two living species of Glyptostrobus, which Fortune found 

 growing in China, resemble the fossil forma perhaps as much 

 as they do each other, and it is perhapa doubtful whether they 

 should not all be united under the same name. The living and 

 fossil plants are associated with fan-palms, and belong to the 

 flora of the Southern temperate zone, or that of a latitude tea 

 degrees south of the localities where the fossils occur. 



Formation and Locality. Fort Union, Dacotah, Washii 

 ton Territory, and Birch Bay, B. ( '. 



Taxodiiim occidental? (Newb.) 

 T. occidentcde, Bost. Jour. Nat. Hist he. eit. 



Branchlets terete, leaves numerous, crowded, Bessile or very short 



petioled, one-nerved, flat, rounded at both end-. 



This plant is the American analogue of T. dubium, Eleer 

 (Flor.Tert.Helv. S.49,Taf.xvii,fig8. 5 L5),which itsocloeelj 

 sembles, that at first sight it would probably be considered iden- 

 tical with that species, but in T. diibium the leave- are fewer, 

 more obliquely set on the branchlets; are lanceolate in outline 

 and acute at both ends, whereas in the specimens collected by 

 Dr. Hayden on the Upper Missouri, Dr. Cooper in Montana, 

 Mr. Geo. Gibbs near Bellingham Bay, Prof. Dana at Kirch Bay, 

 and by Richardson on McKenzie's river, the li are all 



broader, more closely set, rounded at both end-, and BOtm 

 even em'arginate at the summit. The specimens brought in 

 by Dr. Hayden and Dr. Cooper are larger and 

 those from theWesl . but the form of the lea! 



It unfortunately happen- that in none of the c 

 at the West, containing this plant, are thi 

 can, with any probability, be supposed to re] lit. 



It is riot certain therefore that this is a 1 

 true Taxu8, but the length ofth< '1 incl 



and their accurate arrangement in two rank?, all led 



in the same plane, give the foliage an aspect unlike th 

 of the Yew-. 



