GRAMINEA. 495 
75. Panicum repens, Linn. Sp. Pl. ed. 2, p. 87; Kunth, Enum. Pl. i. p. 103; 
S. Wats. in Proc. Am. Acad. xviii. p. 172; Vasey, Grasses U.S. p. 12. 
Panicum arenarium, Brot. F\. Lusit. i. p. 82; Ch. et Schl. in Linnea, vi. p. 35. 
AaBaMa.—NortH Mexico, San Miguelito mountains, San Luis Potosi (Schaffner, 
1040) ; Sour Mexico, Vera Cruz (Schiede & Deppe).—Soutu Evrorpze; Nort AFrica ; 
Canary Istanps. Hb. Kew. 
Schlechtendal was the first to refer Mexican specimens to this Old World species, 
and he says, loc. cit., “ Certo certius nostra una eademque planta ac europea mediter- 
ranea, forsan nullo jure a P. repente, Linn., distracta et cum aliis a recentioribus 
speciebus ad eam reducenda.” Chapman (FI. Southern U.S. Suppl. p. 666) records it 
from the “Sandy Coast of Mobile,” without further remark; but Vasey, who cites the 
same locality, treats it as a naturalized plant, which it might well be both there and at 
Vera Cruz, and it may have been conveyed by birds to the mountains of San Miguelito. 
76. Panicum rhizophorum, Fourn. Mex. Pl. Enum., Gram. p. 31. 
Souta Mexico, region of Orizaba (Bourgeau, 3025). Hb. Kew. 
77. Panicum rugulosum, Trin. Diss. Alt. p. 195, et Sp. Gram. Ic. et Deser. 
t. 238; Doll in Mart. Fl. Bras. ii. 2, p. 258; Fourn. Mex. Pl. Enum., Gram. p. 21. 
Panicum hirsutum, Lam. Encycl. iv. p. 741. 
Panicum sillowi, var. B. longevaginatum, Rupr. in Bull. Acad. Brux. ix. (reprint, p. 18). 
Panicum pilosum, var. B. letiogonum, Rupr. 1. c. fide Fourn. 
South Mexico, Jalapa (Galeotti, 5728, 5726, 5699), Orizaba (Botteri, 152).—Cusa ; 
Guiana; Brazit. Hb. Kew. 
78. Panicum ruprechtii, Fourn. Mex. Pl. Enum., Gram. p. 21. 
Panicum rariflorum, Rupr. in Bull. Acad. Brux. ix. (reprint, p. 14), non Lam. 
NortH Mexico, San Luis Potosi (Virlet d’Aoust); Sourn Mexico, Las Vigas, near 
Jalapa, 7000 feet (Galeotti, 5733). 
79. Panicum ruscifolium, H.B. K. Nov. Gen. et Sp. i. p. 101; Schl. et Ch. 
in Linnea, vi. p. 33; Kunth, Enum. Pl. i. p. 121; Fourn. Mex. Pl. Enum., Gram. 
p. 34 (varietates 2). 
NortH Mexico, San Luis Potosi (Virlet d@Aoust); Sovurh Mexico, Cuernavaca 
(Bilimek), Volcan de Jorullo, 3000 feet (Humboldt & Bonpland), Zimapan (Coulter, 
1639), without locality (Parkinson) ; Nicarnaaua (Lévy). Hb. Kew. 
Under this species Fournier has the following observation :—‘“‘ Haud raro observatur, 
in Panicis Americanis, singularis queedam spicule abnormitas, que tunc triflora evadit, 
flore ultimo 1-2-paleato, hyalino, spiculam superante. In hoc statu monstroso nititur 
genus. Agrostomia (La Naturaleza, Nov. 1870).”* 
* In the volume of ‘ La Naturaleza’ referred to, pp. 343 to 351, Vicente Cervantes describes a number of 
grasses from the environs of Mexico as new, and belonging to new genera, but in such a manner as to be quite 
unrecognizable. Thus :—Agrostomia, three species ; T'richodiclidia, two species; Erucaria, eight species ; and 
Echinanthus, one species. They are probably all well known under other names. 
