110 ANDROSTROBUS. 



the genus Friqia of Yelenovsky, 1 reference may also be made 

 to Zamites familiar is (Cord.) 2 from the Lower Quader of Bohemia, 

 which Corda and Carruthers 3 regard as an example of a male 

 cone ; the figures of this form lend support to such an opinion. 

 The specimen described by Carruthers in his monograph on 

 cycadean stems as the " antheriferous cone of Bucklandia"* does 

 not seem to me to afford any distinct evidence in favour of such 

 a determination. 



Androstrobus Nathorsti, sp. nov. 



PI. IX. Pigs. 1-4. 



Type. Specimens of imperfect flowers and detached staminal 

 leaves. British Museum. 



It is difficult to give a definition of this species which shall 

 be in any sense complete. The following may serve to indicate 

 the most obvious features of this somewhat unusual form of 

 cycadean cone. 



Axis fairly stout, bearing spirally disposed and more or 

 less triangular staminal scales ; in section the scales have a 

 hexagonal outline, in side view they show a broad base in close 

 contact with the axis of the flower, and measure about l-l'Scm. 

 in length, gradually tapered towards the apex, which is pointed 

 or slightly rounded. On some of the staminal leaves there are 

 rows of regularly placed angular depressions, probably repre- 

 senting the impressions of pollen-sacs, borne towards the basal 

 or proximal end of each scale. 



V. 2701. PI. IX. Figs. 3 and 4. 



This specimen shows several fairly well-preserved scales of 

 a male flower, length about 6 - 5 cm., breadth 4 cm. The central 

 axis is not very clearly seen, but there are indications here and 

 there of the points of attachment of the sporophylls. The axis 



1 (A. 1), Gym. Bohm. Kreid. p. 8, pi. iii. 



2 Corda in Reuss (A.), Verstein. bohm. Kreid. p. 86, pi. xlix. figs. 10 and 11. 



3 (3), p. 6. 



* (1), pi. liv. fig. 6. 



