FOSSIL FLORA. 68 i 



Sequoia couttsi.e Heer. 



The matei'ial which I inchne to refer to this species was found at only 

 one locaHty within the Park, namely, the northeast side of Crescent Hill. 

 It was abundant and fairly well preserved. It consists of masses of slender 

 branches with short acute appressed leaves, in some cases with recurving 

 or at least spreading tips. In a number of cases the male aments were pre- 

 served. They are on short, slender branches covered with short scales. 

 The aments are made up of few small, irregular scales. 



There is undoubtedly much confusion in regard to this species. Ac- 

 cording to Gardner,' nmch of the material referred to by Heer and others, 

 from Greenland especially, should be relegated to another species, Avhich 

 he proposed to call S. wlujmperi. Gardner is also of the opinion that poi-- 

 tions of the foliage have by various authors been separated as Gh/pldstialins 

 ungeri. These, as he ])oints out, are usually associated with Sequoia 

 cones, and are "never accompanied by any trace of the persistent and very 

 distinct cones of Glyjitostrobus." I believe this to be true, and conse- 

 quently I would refer to Sequoia couttsue the numerous specimens figured 

 by Lesquereux as Gh/ptosfrohus imc/eri,^ from the Green River group of 

 Florissant, Colorado. I am also of the opinion that the specimens from the 

 Fort Union group, at the mouth of the Yellowstone, described by Newberry^ 

 under the name of GJijptostrobus europmus Brongt., should lie placed under 

 Sequoia, couttsia. I have never seen any of these specimens, however, and 

 base this conclusion on the figures. I have seen a number of specimens 

 from near the same place, collected in later years, and they seem to bear out 

 this conclusion. Some of the material from the so-called Laramie of Canada 

 also appears to be properly referable to this species. The whole subject 

 needs thorough revision, with specimens at hand from all localities, and 

 until this can be had no determinations can be regarded as final. 



Habitat: Northeast side of Crescent Hill, opposite small pond, Yellow- 

 stone National Park; collected by F. H. Knowlton, August 2, 1888. 



' Monog. Brit. Eoc. Fl., Vol. II. Pt. I, Gymuosperm:i', p. 39. 

 ■ Cret. and Tert. Fl., p. 139, PI. XXII, figs. l-6a. 

 'See Cret. aucl Tert., PI., XI, inas. 6-8. 



