IOWA ACADEMY OF SCIENCE 
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DIGITARIA Scop. 
42. Digitaria humifusa Pers. Low Finger Grass. Not rare. 
43. Digitaria sanguinalis (L.) Scop. Crab-grass. Abundant every- 
where. 
PASPALUM L. 
44. Paspalum ciliatif olium Michx. Ciliate Paspalum. Common in 
sandy soils and along streams. 
PANICUM L. 
45. Panicum capillar e L. Witch Grass. Common. 
46. Panicum miliaceum L. European Millet. Occasional as an es- 
cape along railways. 
47. Panicum dichotomiflorum Michx. Spreading Panicum. Very 
common and an extremely variable species, the forms of rich 
and sterile soils being widely dissimilar in appearance. 
48. Panicum virgatum L. Tall Panicum. An abundant species 
throughout the area. 
49. Panicum depauperatum Muhl. Starved Panicum. Rare and local 
in dry soils. 
50. Panicum perlongum Nash. Narrow Leaved Panicum. A very 
similar but much more common species. 
51. Panicum huachucae Ashe. Velvety Panicum. Not rare in sandy 
soils. 
52. Panicum huachucae silvicola Hitchc. & Chase. Woodland Velvety 
Panicum. Rare, at Riverside Park. 
53. Panicum tennessense Ashe. Tennessee Panicum. Rather scarce 
along streams. 
54. Panicum praecosius Hitchc. & Chase. Branching Panicum. Not 
rare in dry soils. 
55. Panicum villosissimum Nash. Villous Panicum. Scarce in dry 
soil near Llill’s Siding. 
56. Panicum scribnerianum Nash. Scribner’s Panicum. Very abun- 
dant. 
57. Panicum liebergii (Vasey) Serib. Lieberg’s Panicum. Scarce, 
locally abundant at Hills. 
58. Panicum clandestinum L. Hispid Panicum. Not scarce. 
59. Panicum latif olium L. Broad Leaved Panicum. Not rare in 
woods. 
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