148 Order ROSALES 
27. Lathyrus. 567. 
Flowers purple. 
Glabrous or somewhat pubescent when young; flowers 2-2.5 em. 
long. 1. L. ornatus. - 
Grayish-pubescent all over; flowers less than 2 cm. long. 
la. L. ornatus incanus. 
Flowers yellowish. 1b. L. ornatus flavescens. 
1. Lathyrus ornatus Nutt. Showy Vetchling. 
Common throughout the state. Fremont; Ft. Robinson; Grand Island; 
Long Pine; Shelton. 
la. Lathyrus ornatus var. incanus Smith & Rydberg. 
In the western part of the state. Ft. Robinson; Sheridan. 
1b. Lathyrus ornatus var. flavescens Rydb. 
In sandy soil in the western part of the state. Dodge, Kearney and 
Cherry counties. 
28. Vicia. 565. 
Flowers numerous in dense, 1-sided racemes. 1. V. villosa. 
Flowers 2-9, in loose racemes. 
Leaflets elliptic to linear-oblong; stipules toothed. 
Stems smooth or nearly so; leaflets elliptical or ovate-oblong. 
2. V. americana. 
Stems generally more pubescent; leaflets linear-oblong or cune- 
ate. 2a. V. amer. truncata. 
Leafiets linear; stipules narrow and less toothed. 
2b.V. amer. linearis. 
1. Vicia villosa Roth. Hairy Vetch. 
Introduced and still rare. Riverton; Tecumseh. 
2. Vicia americana Muhl. American Vetch. 
Rich soil in the eastern part of the state. University Place; Weep- 
ing Water. 
2a. Vicia americana var. truncata (Nutt.) Brewer. 
Vicia oregana Nutt. 
Along streams, mostly in the eastern part of the state. Gordon; 
Nebraska City; Peru; Whitney. 
2b. Vicia americana var. linearis (Nutt.) S. Wats. 
Vicia sparsifolia Nutt. 
Dry prairies throughout the state. Antelope county; Callaway; 
Emerson; Fairbury; Lincoln; Minden; Red Cloud. 
3. CRASSULACEZ. 
Carpels distinct to the base or nearly so. 1. Sedum. 
Carpels united to the middle or above. 2. Penthorum. 
1. Sedum. 473. 
1. Sedum stenopetalum Pursh. Stonecrop. 
On dry, stony hills in the northwestern part of the state. Hat Creek 
basin; Harrison. 
2. Penthorum. 475. 
1. Penthorum sedoides L. Ditch Stonecrop. 
Common on banks, in ditches and in other wet places in the eastern 
part of the state. Ewing: Grand Island; Lincoln; Newark; Plain- 
view; Red Bird creek; Walton; Wahoo. 
