354 



SEQTJOIINEAE 



[CH. 



B 



fine teeth on the edge of the lamina^. Similar teeth are stated by 

 Nathorst to have been seen in one or two examples of Sequoia 

 sempervirens, and it suggested that the papillae^ which are a normal 

 feature of the recent species, were more strongly developed in the 

 Tertiary type. Heer^ records the species from Miocene beds in 

 Greenland and states that it is one of the commonest Conifers in 

 Disco Island, from the Mackenzie River, Alaska, Spitzbergen, and 

 Sachalin Island. The fragments 

 reproduced in fig. 767 were col- 

 lected in Disco Island and are now 

 in the Dublin Museum with other 

 fossils described by Heer; the long 

 linear leaves. A, are decurrent and 

 in some cases the lamina shows 

 fine transverse striations: the 

 smaller leaves shown in fig. 767, B, 

 are referred by Heer to a distinct 

 species S. hrevifolia, but there is no 

 important difference between the 

 two forms. Palibin^ figures sterile 

 shoots from the Sichota-Alin moun- 

 tains. Penhallow* records the spe- 

 cies from British Columbia and ^<*-'^^- '^'«"°"'*:!^''!!^f.'!^.^l-J^™™ 

 other localities, and to the same 

 type he assigns some petrified wood 

 from the Queen Charlotte Islands though without any real evidence 

 of connexion. Twigs and cones are described by Schmalhausen 

 from Tertiary strata in the New Siberian Islands^, and the species 

 is said to be one of the most abundant and widely distributed 

 types in the Yellowstone National Park^. Remains of more than 

 one species of Sequoia are recorded from Florissant, Colorado, 

 which has recently been described as a Miocene Pompeii : the sedi- 



1 Nathorst (152) p. 10, PI. I. figs. 1—15. 



2 Heer (68) Pis. ii., xx., LV., etc.; (71) Pis. XL., XLm., etc.; (75) iii. PI. n.; 

 (77) i. Pis. xn., xm., xxv.; (78) v. PI. i.; (82) i. PL Lm. 



3 Palibin (04) PI. n. 



* PenhaUow (02) pp. 44, 68; (03) p. 41. 

 = Schmalhausen (90) PI. i. Egs. 2—11. 

 " Knowlton (99) p. 682. 



specimens in the Dublin Museum 

 described by Heer.) 



