A fossil golden rod 



T. D. A. COCKERELL 



Solidago praeconcinna n. sp., Folia caulina anguste lanceo- 

 lata, integerrima, dentis paucis subapicalis excepta; ut .S. con- 

 cinna A. Nelson. 



Leaves narrowly lanceolate, about 70 mm. long and 7.5 

 wide, with entire margins, except for an occasional notch near 

 the apex. Venation and all other characters as in S. concinna 

 A. Nelson or S. missouriensis Nuttall. Creede formation, Mio- 

 cene Tertiary, near Creede, Colorado; collected by Mr. Allan 

 Caplan. 



The specimen represents the end of a leafy stem, with about 

 eight leaves clearly visible. The leaves were evidently soft and 

 flexible, not stiff and coriaceous. If they were restored to life, I 

 should hardly know how to separate them from those of 5. 

 concinna, an existing Rocky Mountain species. For the photo- 

 graph I am indebted to my colleague Mr. Hugo Rodeck. 1 



Boulder, Colorado 



1 On the same piece of rock as the fossil Solidago from Creeds is a crane 

 fly. On close examination of this, I am unable to separate it from Tipula litni 

 Scudder, a common species of the Florissant shales. 



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