380 



ABIETINEAE 



[CH. 







branches are associated numerous needles, 1 mm. broad and at 

 least 5 cm. long, sometimes covering the 

 whole surface of the rock. The specimens 

 agree closely with the foliage-shoots of 

 Pityites Solmsi: similar examples are 

 described by Ettingshausen 1 from Li- 

 assic strata as Halockloris baruthina 

 Ett. A branch with short shoots from 

 Jurassic rocks in Amurland described 

 as Pinites sp. cf. P. kobukensis 2 may be 

 specifically identical with the Dzungaria 

 fossils: an example of the same type 

 lent to me by Dr Krystofovic from 

 Jurassic beds of Amurland shows a 

 forked lateral foliage-shoot. This author 

 has recently described a specimen from 

 Jurassic rocks in Transbaikalia as Pin- 

 ites (Pityophyllum) cf. P. kobukensis s . 



Similar though smaller specimens FIG. 777. Pityodadus kobuken- 

 of Abietineous short shoots are de- f ; b * branch : sca x r - < After 



Seward: nat. size.) 



scribed by Nathorst 4 as Pinites (Pityo- 

 dadus) spp. a and b from Upper Jurassic beds in Spitzbergen, and 

 compared by him with Pityites Sohn*i. 



PITYOPHYLLUM. Nathorst, 



This name 5 is applied to detached leaves of needle-like form like 

 those of recent Pines or to long linear leaves broader and natter 

 than the needles of Pinus. Some of the specimens referred to 

 this genus are very similar to the leaves of Keteleeria. In a few 

 cases (fig. 775) the leaves are still attached to a short shoot but 

 usually they occur as detached specimens (fig. 776). The genus is 

 met with in Rhaetic strata but is specially abundant in Jurassic 

 floras and persists through Cretaceous and Tertiary rocks. The 

 leaves generally described under this generic term are broader and 

 flatter than such leaves as those of Pityites Solm-si* and recent 



1 Ettingshausen (52) B. PL n. fig. 4. 



2 Seward (12 3 ) PL in. 3 Krystofovic (15) PL vi. fig. 9. 



4 Nathorst (97) PL in. figs. 2830, PL iv. figs. 13, 14, 23. 



5 Ibid. (97) p. 62. See page 374; also Nathorst (97) PL v. figs. 110 



