Rosendahl: NEW SPECIES OF RAZOUMOFSKYA. 273 



5 mm. long : flowers nearly sessile, partly enclosed by the con- 

 nate leaves: fruit 4-5 mm. long, 2.5-3 mm. in diameter, obo- 

 vate, short conic-beaked, slightly compressed dorsi-ventrally, at 

 length becoming shortly stalked and reflexed. 



EXPLANATION OF PLATES. 

 PLATE XXVII. 



The figures are from photographs made by C. J. Hibbard and are 

 a little less than natural size. 



1. Pistillate plant in fruiting stage. 



2. Pistillate plant attached to its host, a younger stage than fig. i . 

 34. Staminate plants, medium size. 



5. Large staminate plants, attached to their host. 



PLATE XXVIII. 



1. Large pistillate plant in fruiting stage, slightly enlarged. 



2. Two pistillate flowers, advanced stage, X5- 



3. Single pistillate flower, X5 



4. Part of fruiting branch with nearly mature fruit in position, X5- 



5. Fruit removed from plant, X5- 



6. Medium sized staminate plant, slightly enlarged. 



7. End of staminate spike, flowers in bud, X5- 



8. Terminal staminate flower expanded, X5 



9. Terminal staminate flower, viewed from above, showing the cir- 

 cular stamens, X 6. 



