XLII] RHIPIDOPSIS 91 



length including the petiole of 30 cm. and a breadth of 11 cm. 

 The segments, 610 in number, are often free to the summit of 

 the petiole ; they vary considerably in shape and size, the median 

 segments are obcuneate with a broad rounded truncate margin, 



FIG. 670. Rhipidopsis ginkgoides. (From a photograph of the original of one 

 of Schmalhausen's figures supplied by Prof. Zalessky.) 



while the lateral lobes are obovate asymmetrical. The repeatedly 

 forked veins are 1 1-5 mm. apart in the lower part of the lamina 

 but much more crowded in the apical region. The slender petiole 



