346 Mr. J. Ball on the Botany of Sicily. 



Gastridium lendigerum, R. and S., J. B. sp. I cannot agree in the 

 reunion of this genus with Milium. In an extensive natural order 

 it is surely necessary to allow great weight to habit in establish- 

 ing generic distinctions. . 



muticum, Spr. In several places. Observation may per- 

 haps show that the differences are not permanent which separate 

 this from the preceding very variable species. 



Ayr ostis pallida, DeC. Castelvetrano, &c. 



canina, L. 



nitens, Guss. Trapani, from the salt-marshes, Gussone. 



Sicula, Kunth (A. glaucescens, Spr.). I am not acquainted 



with this species, nor does it appear that Bertoloni is so either. 



alba, L. Very common and variable : amongst other forms 



there are A. vulgaris, E. B. ; A. stolonifera, L. ; A.pumila, L. ; and 

 I should say the following : — 



verticillata, Vill. Syracuse, J. B. I cannot find satisfactory 



characters, though assisted by Bertoloni's observations. 

 pungens, Schreb. Palermo. 



Cynodon Dactylon, Pers. Very common. 

 Digitaria Sanguinalis, W. A very variable species. 

 Panicum verticillatum, L. Fields about Palermo, Gussone. 



viride, L. Common. 



glaucum, L. Common. Bertoloni has well distinguished 



these plants. 



Crus-Galli,L. Common. 



zonale, Guss. Fields near Palermo and Boccadifalco, Guss. 



Teneriffae, R. Br. Not unfrequent, J. B. 



— i repens, L. 



compressum, Biv. Neighbourhood of Palermo, J. B. sp. 



Aira cristata, L. 



grandiflora, Bert. This is I think frequent on rocky ground. 



aquatica, L. 



agrostidea, Spr. Madonie, Herb. nost. ; meadows at Bucheri, 



Gussone. 



ctespitosa, L. Nebrodes, Gussone. 



pubescens, Vahl. Frequent on the sea-coast, J. B. sp. 



• flexuosa, L. Mountainous parts, J. B. 



— articulata, Pers, South coast, Gussone ; lower region of Etna, 



J. B. sp. The Etna plant has a slightly different appearance, but 

 is scarcely distinguishable as a variety : it is the AiraMtnensis, Psl. 

 — caryophyllea, Madonie, Herb. nost. ; Terranova, Jan. 



Tenor it, Guss., A. pulchella,W. Sicily, Gussone. This should 



be placed next to the last species, to which it is nearly allied, 

 though certainly distinct. 

 — capillaris, Spr. Palermo, Gussone. 



y. Bert., A. intermedia, Guss. Palermo, Gussone ; 



Madonie, Herb. nost. 

 Pollinia distachya, Spr. Palermo, Taormina, and elsewhere on the 



east coast, J. B. sp. 

 Andropogon hirtum, L. Frequent, J. B. sp. 

 angustifolium, Fl. Gr. Frequent, J. B. Should Bertoloni 



