2?l 
Archangiopteris Henryi and other Marattiaceae . 
Fig. 8. Kaulfussia. Represents the vascular system at the very base of a petiole. The letters 
a. b. c. d. e. indicate the internal strands. In this and in all succeeding figures the courses traversed 
by these strands are indicated by the fine continuous lines. The dotted line joins up the strands that 
form the typical curve, the terminal strands of which are marked with an x. The arrow-heads show 
the direction of the protoxylems. 
Fig. 9. Kaulfussia. The vascular system in the lower part of another petiole. ,y. is the 
transverse suture passing across between the two terminal strands. 
Fig. 10. Kaulfussia. The vascular system in the upper part of a third petiole. 
Figs. n-14. Archangiopteris. The vascular system at successively higher levels in the basal 
pulvinus of the same petiole, a. b., internal strands. 
Figs. 15 and 16. Archangiopteris. The vascular system at two succeeding levels in the petiole 
above the basal pulvinus. 
Fig. 17, Archangiopteris. The vascular system in the rachis just below the insertion of a pinna. 
p. tr ., main strand for the pinna ; st„ strand which passes out into pinna from end of terminal 
incurved strand. 
