312 



MEXICO. 



[ Filices 



Ord. LXXXV. AROIDE^l. Juss. 

 1. Pistia Stratiotes. L. 



Ord. LXXXVI. CYPERACEiE. Juss. 

 1. Isolepis exigua — Scirpus exiguus. H. B. K. Nov. Gen. Am. 1. p. 154. 

 1. Fimbristylis ferruginea. — Isolepis ferruginea? Schlecht. in Li?i?i(ea, 6. p. 27. 

 1. Cyperus exaltatus. Retz. 



C. exaltatus is indeed an East Indian species, but we scarcely see how this differs from it. It agrees too 

 in many points with C. Toluccensis, H. B. K., but the glumes are not reflexo-mucronate. 



Ord. LXXXVII. GRAMINEtE. Juss. 

 1. Panicum maximum. Jacq. 



3. P. sp. — elatum, foliis lanceolatis acuminatis basi cordato-amplexanttbus glaberrimis, 

 panicula ramosissima, spiculis compressis, glumis inoequalibus obtusis striatis glabris. 



3. P. (Digitaria) adscendens ? H. B. K. Nov. Gen. Am. \.p. 97. 



Very nearly allied to P. commutation from the East Indies. 



4. P. ( Hymenacbne) Myurus. Lam. — H. B. K. Nov. Gen. Am. \. p. 98. 

 1. Pennisetum purpurascens. H. B. K. Nov. Gen. Am. I. p. 113. 



1. Ctenium Americanum. Spr. 



1. Arundo nitida. H. B. K. Nov. Gen. Am. I. p. 149. 688. 



1. Cenchrus echinatus. L. 



\. Eraffrostis ciliaris. P. Beauv. — Poa ciliaris. H. B. K. 



2. E. plumosa. Trin. — Poa. Retz. 



ACOTYLEDONES. 



Ord. LXXXVIII. FILICES. 



1. Lycopodium pallescens. Hook, et Grev. in Bot. Misc. v. 2. p. 381.— An Presl, Reliq. 

 Hcenk. p. 79 ? 



J. Marsilea vestita. Hook, et Grev. Ic. Til. p. 159. — Hab. Talisco. 

 1. Nephrolepis exaltata. Schott. — Aspidium exaltatura. Sw. 



1. Asplenium Nidus. L. 



2. A. subalatum ; cgespitosum pinnatum, pinnis oblongis rigidis subacutis subtus basi 

 superiore truncata margine inferiore dimidiato integro, reliquo inciso-pinnatifido lacinns 



