Explanation of PL XVII. 



Oarex satsumensis FK. et SAV. var. longiculma HAYATA. 



Fig. 1. The plant. 



2. Spikelet. 



3. A bract at the base of a spikelet. 



4. A cladoprophyllum. 



5. The same, seen from side. 



6. A scale of a female flower. 



7. An utricle. 



8. A nutlet. 



9. 10. Other forms of nutlets. 



11. A male flower. 



12. Cross section of a nutlet. 



