LATICTFERODS TISSUE OF HEVEA SPRUCEANA. 207 



ferous cells. This conclusion is of special interest^ as in the 

 closely allied Jatropha the laticiferous tubes are most cha- 

 racteristic, typical cells, so far at least as can be decided 

 without investigation of the embryonic development. 



I hope to publish more detailed observations on Hevea, with 

 figures, on a future occasion. 



