XLV] AKATJCABITES 265 



impossible to draw any sharp line between the two species; they 

 agree very closely with both British and French Jurassic types. 



Amucarites cutchensis Feist, is recorded by Halle ^ from the 

 Upper Jurassic flora of Graham Land. The scales exhibit a con- 

 siderable range in size and shape and more than one type may be 

 represented. They are always more or less cuneate and have a 

 narrow truncate base ; some of them show broad lateral wing-like 

 extensions ; the distal end is nearly truncate and bears a narrow 

 hnear appendage. As Halle says, the scales closely resemble those 

 of A. Brodiei Carr. 



Cone-scales from Jurassic rocks in Victoria^, Australia, de- 

 scribed as Araucarites sp., A and B, demonstrate the occurrence of 

 cones with scales almost identical with A. Phillipsi and other 

 European forms. There is a comparative scarcity of Araucarian 

 ' cone-scales in Jurassic and Cretaceous strata in North America but 

 some examples are recorded. Araucarites wyomingensis Font.^ from 

 the Lower Cretaceous of the Black Hills is represented by broadly 

 cuneate scales 1-2 cm. long and with a maximum breadth of 9 mm. 

 and a broad beak at the apex bearing seeds 4 — 5 mm. long. 

 Larger cone-scales are described by Berry* from Middle Cretaceous 

 rocks in North Carolina as Araucarites Jeffreyi (fig. 740, 2). These 

 scales are associated with the foliage-shoots referred to Araucarites 

 bladensis and the two may belong to one plant. The same author 

 also figures a specimen from the Upper Potomac series as Arau- 

 carites patapscoensis^ from Virginia. 



Foliage-shoots. 



There are numerous examples of foliage-shoots among Mesozoic, 

 and to a less extent Palaeozoic, strata which bear a striking resem- 

 blance to branches of recent species of Araucaria, especially 

 species of the Eutacta section, but in many cases confirmatory 

 evidence such as would be afforded by reproductive shoots is 

 lacking. The practice adopted by some authors of referring 



1 HaUe (132) p. 72, PI. vin. figs. 3—10. 



2 Seward {04") B. p. 181, figs. 42, 43. 



' Fontaine in Ward (99) B. p. 669, PI. clxiii. figs. 1—9. 

 * Berry (08) p. 258, PI. xvi. ; (14) p. 20. 

 5 Ibid. (11) p. 399, PI Lxxvn. fig. 5. 



