ILLUSTRATIONS. 



PLATES. 



Page. 



Plate I. Yig. l.—Leptochloa mucronata. Fig. 2.— Leptochloa viscida,.^ M 

 IT. Fig. 1. — Lejjtochloa domiugensis, from Florida. Fig. 2.—Lepto- 



cJi loa domingensis, from Texas . _ _ 24 



III. Fig.\.—Leptochloascabra. Fig. 2.—Leptochloa nealleyi 24 



IV. Fig. 1. — Leptochloa fascicularis (Diplachne jirociimbens "Nash). 



Fig. 2.—Leptochloa fascicularis {Diplachne iraciji Vasey) 24 



V. Fig. l.—Lejitochloa fascicularis (ordinary form). Fig.2.—Lep- 



tocliloa imhricata 24 



VI. Leptochloa florihunda 24 



TEXT FIGURES. 

 [All five times natural size.] 



Fig. 1. Spikelet of Leptochloa attenuata 11 



2. Spikelet of Leptochloa vmcronata .. 11 



3. Spikelet of Leptochloa virgata 12 



4. Spikelet of Leptochloa domingensis. from Texas 13 



5. Spikelet of Leptochloa domitigensis, from Florida 13 



6. Spikelet of Leptochloa domingensis, from Central America 13 



7. Spikelet of Leptochloa nealleyi 14 



8. Spikelet of Leptochloa scabra 14 



9. Spikelet of Leptocliloa viscida . . 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 Leptochloa spicata ... 19 



16. Spikelet of Gouinia brandegei 21 



8 



