50. 
Ivy Neck. Infrequent at borders of cultivated fields: one 
station near artificial pond at source of Cheston Creek drainage; one 
in weedy field near forested valley of Scaffold Creek drainage. 
Associate species: Eleusine indica, Ludwigia palustris, Polygonum 
persicaria, Setaria glauca, Strophostyles umbellata. Higman 174, 255, 866, 
996, 1138. 
E. walteri (Pursh) Nash 
Java Farm. One station: upstream limit of salt marsh on Muddy 
Creek, beyond margin of forest. Hectare 3430. Associate species: 
Echinochloa pungens, Baccharis halimifolia, Cyperus strigosus, Asclepias 
incarnata, Eclipta alba, Scirpus validus var. creber. Higman 541. 
Digitaria 
Digitaria ischaemum (Schreb.) Muhl. Crabgrass 
Java Farm. Infrequent along Fox Point Road and in yard of burned 
house on road to springhouse. Associate species: Juncus tenuis, Rhus 
typhina, Paspalum setaceum. Higman 27, 387. 
Paspalum 
1. Racemes both terminal and axillary, the latter sometimes 
hidden in the sheaths; spikelets not more than 2 m. 
long. 
2. Blades usually not over 8 mm. wide; spikelets 
about "1.5 mm. Wong. 20. Veeco cweasececceeewccerseedee Ps Setaceum 
2. Blades up to 20 mm. wide; spikelets at least 2 m. 
long. (Also, culms erect; leaves sparsely to densely 
pilose). Expected (P. pubescens). 
1. Racemes terminal on the primary culm or on leafy 
branches, not axillary; spikelets 2.5-4 mm. long. 
3. Spikelets conspicuously ciliate on the margins; 
leaves glabrous. (Also, culms geniculate at base). 
Expected (Pp. dilatatum). 
3. Spikelets not ciliate; leaves pilose. 
4, Plants robust, usually 1-2 m. tall; spikelets 
APA W LONGI ieverVeteleioie 6. oie) c)ctele elle ees c/o stele) s/c ele oie) suelerss)) Pe Ot Ganume 
4, Plants not robust, less than 1 m. tall; spikelets 
usually under 3.5 mm. long. 
