GRASSES IN THE BERNHARDI HERBARIUM. 539 
complete. — a, Empty glumes; b, spikelet, empty glumes removed. 2, 
Eragrostis tenella Beauv. —a, Spikelet; b, empty glume of the floret. 
Plate 45. Eragrostis lurida Presl. Mountains of Peru. — a, Empty 
glumes; b, spikelet, empty glumes removed; c, dorsal view of flowering 
glumes; d, palea; e, grain. 
Plate 46. Eragrostis secundiflora Presl. Mexico. —a, Spikelet; b, 
floret; c, inner view of the palea showing lodicules. 
Plate 47. 1, Eragrostis panamensis Presl. Panama. —a, Spikelet; b, 
floret. 2, Megastachya panicoides. Presl. Mexico near Acapulco. — a, 
empty glumes; b, spikelet, empty glumes removed; c, floret. 
Plate 48. 1, Brizopyrum boreale Presl. Nootka Sound. Specimen 
fragmentary. 2, Brizopyrum pilosum Presl. Acapulco. — a, Spikelet. 
Plate 49. Chascolytrum spicigerum Presl. Mountains of Peru and 
Chili. —a, Entire spikelet; b, lateral view of flowering glume; c, palea; 
d, lodicules; e, pistil. 
Plate 50. Poa holciformis Presl.—a, Empty glumes; b, spikelet, 
empty glumes removed; c, floret; d, palea; e, lodicules; f, pistil. 
Plate 51. 1, Poa nootkaensis Presl. Nootka Sound (?), Mexico (?).— 
a, Empty glumes; b, spikelet, empty glumes removed. 2, Poa secunda 
Presl. Chilian Cordilleras. Fragmentary specimen.—a, Empty 
glumes; b, spikelet, empty glumes removed; c, dorsal view of flowering 
glume; d, palea; e, pistil and lodicules. 
Plate 52. 1, Bromus setifolius Presl. In the Chilian Cordilleras. —a, 
Empty glumes; b, a single floret. 2, Bromus secundus Presl. Nootka 
Sound. — a, Empty glumes; b, florets. 
Plate 53. Bromus virgatus Presl Mexico (?). Monterey, Cal. —a, 
Empty glumes; b, spikelet, empty glumes removed. 
Plate 54. 1, Ceratochloa haenkeana Presl. Chilian Cordilleras, 
Mountains of Peru. —a, Lateral view of flowering glume. 2, Hordeum 
comosum Presl. Peru.—a, Interior view of group of spikelets, tip of 
awns removed. 
