ILLUSTRATIONS. 



PLATES. 



Page. 

 Plate I. Fig. 1. — Leptochloa mucronata. Fig. 2. — Leptochloa viseida... 24 

 IT. Fig. 1. — Leptochloa domingensis, from Florida. Fig. 2. — Lepto- 

 chloa domingensis, from Texas . 24 



III. Fig. 1. — Leptochloa scabra. Fig. 2. — Leptochloa nealleyi 24 



IV. Fig. 1. — Leptochloa fascicularis (Diplachne procumbens Nash). 



Fig. 2. — Leptochloa fascicularis (Diplachne tracyi Vasey) 24 



V. Fig. 1. — Leptochloa fascicularis (ordinary form). Fig. 2. — Lep- 

 tochloa imbricata 24 



VI. Leptochloa floribunda . 24 



TEXT FIGURES. 



[All five times natural size.] 



Fig. 1. Spikelet of Leptochloa attenuata 11 



2. Spikelet of Leptochloa mucronata 11 



3. Spikelet of Leptochloa virgata 12 



4. Spikelet of Leptochloa domingensis, from Texas 13 



5. Spikelet of Leptochloa domingensis, from Florida , 13 



6. Spikelet of Leptochloa domingensis, from Central America 13 



7. Spikelet of Leptoch loa nealleyi 14 



8. Spikelet of Leptoch loa scabra 14 



9. Spikelet of Leptoch loa viseida 15 



10. Spikelet of Leptochloa dubia 15 



11. Spikelet of Leptochloa floribunda 16 



12. Spikelet of Leptochloa aquatica 17 



13. Spikelet of Leptochloa fascicularis 17 



14. Spikelet of Leptochloa imbricata 19 



15. Spikelet of Leptoch loa spiegta 19 



16. Spikelet of Gouin ia bra nclegei .-. 21 



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