500 F. F(m1<Ic und K. Schusti'r: Index novorum Siphonoganiuniin. 1188 



in radial rows of two to several elements with the contiguous walls, as 

 a rule, markedly flatteued iu the tangential plane; in the autumn wood 

 they ocenr more frequeutly in rows of two. or i.solated. The cliief con- 

 ducting elements are finely scalariform or pitted, transitions being met 

 with on the same element. Thick-walled wood-parenchyma and fibres 

 abundant, simply pitted. Medullary rays 1- — 3 seriate, sinuate in a general 

 radial direction. The cells. which in the same medullary ray may be 

 eitlier isodiametric or several times longer tlian high, have all their walls 

 simply pitted. 



Pataloxylon scalariforme Sahni 1. c. p. 29, PI. I, Fig. 6; PI. II, Fig. 8—11; 

 Textfig. 10a bis c. ■ — Queensland, Mt. Meerschaum. 



P. porosum Sahni 1. o. p. 31, PI. III, Fig. 12- — 15 — Queensland near Brisbane. 



