156 
ows, however, they are so reticulated. Mullen, July 17 and 24 (No, 1565). In another 
form growing in the shade, the leaves are very thin and smooth with the nerves 
not prominent beneath and scarcely reticulated: South Dismal, August 12 (No. 
1692). 
Lespedeza capitata sericea Hook. Comp. Bot. Mag. i, 23 (1835), 
Rare: on the prairies near Halsey, September 11 (No. 1746). 
Lathyrus ornatus Nutt.; Torr. & Gr. FI. i, 277 (1838). 
This has been confounded with L. polymorphus. Sand hills, Thedford, June 16 and 
19 (No. 1320). 
Apios apios (L.) MacMillan, Bull. Torr. Club, xix, 15 (1892); Glycine apios L. Sp. 
Pl. ii, 753 (1753). 
On the wooded banks of Dismal River, near Plummer Ford, August 22 (No, 1714). 
Phaseolus pauciflorus Benth. Comm. Leg. Gen. 76 (1837). 
South Dismal River, August 12; Thedford, August 19 (No. 1687). 
Falcata comosa (L.) Kuntze, Rev. Gen. Pl. i, 182 (1891); Glycine comosa L. Sp. 
Pl. ii, 754 (1753). 
Rare: on the banks of Middle Loup River, near Halsey, September 11 (No. 1749). 
Falcata pitcheri (Torr. & Gr.) Kuntze, Rev. Gen. Pl. i, 182 (1891); Amphicarpwa 
pitcheri Torr. & Gr. FI. i, 292 (1838). 
More common than the last, on the banks of both rivers: Plummer Ford, August 
23; Halsey, September 11 (No. 1715). 
ROSACEZ:. 
Prunus americana Marsh. Arb. Amer. 111 (1785). 
A very variable tree or shrub, The common form in eastern Nebraska is a tree 3 to 
6m. high with oval or obovate leaves. This form was collected at Norway, June 
22; Dismal River, June 29; Thedford, August 21; Mullen, September 15 (No. 1766). 
Another form with narrower leaves, with long acumination, was also found, The 
trees were generally much smaller, 2 to 4 m. high. Thedford, June 15; Mullen, 
September 15 (No. 1289). A third form is a low bush, 1 to 1.5 m. high, with smaller, 
conduplicate leaves, having more rounded teeth and generally two glands on the leaf- 
stalk, The branches are more divergent and the fruit about one-half the size of the 
typical form. South Dismal River, August 14 (No. 1698), 
Prunus besseyi Bailey, Bull. Cornell Agr. Exp. Sta. 70, 261 (1894). 
The main branches prostrate, generally buried in the sand, but the shoots of the 
year mostly upright; leaves obovate, in form resembling those of P. cuneata,! as 
redescribed by Prof. L. H. Bailey,’ but much thicker and firmer and a little smaller, 
serrate, but not as sharply as in 7’. pumila; fruit large, generally about 1.5 te 2 em. 
in diameter, on a short, stout peduncle. The specimens of P,. pumila in the National 
Herbarium have much narrower leaves. In the sand cherry of western Nebraska 
the leaves are somewhat smaller and narrower than in that from the sand hills and 
come nearer to those of P. pumila. 
Common throughout the sand hills and westward: Thedford, June 16, etc, (No. 
1324). 
Prunus demissa (Nutt.) Walp. lepert. ii, 10 (1843); Cerasus demissa Nutt.; Torr. 
& Gr. FI. i, 411 (1840). 
On the hillsides and in the drier part of the valleys, along both rivers: Thedford, 
June 14; Norway, June 22; Mullen, July 27; Dismal River, June 27 (No, 1256). 
'Raf. Ann. Nat. 11 (1820), 
*Bull. Cornell Agr. Exp. Sta. 38, 63 (1892). 
AY 
