120 
Petalostemon virgatum Nees & Schwein., in Ne uwied, Reise 
Nord. Am. 2: 432. 1839. 
A Mississippi Valley species, occurring in Minnesota, Wiscon- 
sin, Illinois, Nebraska, Kansas, Kentucky, Tennessee, Mississippi, 
Louisiana, and in the Saskatchewan region, where it was collected 
by Bourgeau. 
KUHNISTERA CARNEA (Michx.) Kuntze, Rev. Gen. Pl. 192. 1891. 
Petalostemum carneum Michx. F1. Bor, Am, 2: 49. 1803. 
Psoralea carnea Poir. in Lam. Encycl. 5: 694. 1804. 
Dalea carnea Spreng. Syst. 3: 326. 1826. 
Petalostemon roseum Nutt. Amer. Journ. Sci. (I.) 5: 298. 1822. 
Georgia and northern Florida. Nuttall’s P. roseum does not 
seem to be distinct from this species. 
KUHNISTERA COMPACTA (Spreng.) Kuntze, Rev. Gen. Pl. 192. 1891. 
Datea compacta Spreng. Syst. 3: 327. 1826. 
Petalostemon macrostachyum Torr. Ann. Lyc. N. Y. 2: 176. 
1828. 
Petalostemon compactus Swezey, Neb. FI. Pl. 6. 1891. 
Nebraska and Colorado. 
KUHNISTERA DECUMBENS (Nutt.) Kuntze, Rev. Gen. Pl. 192. 1891. 
Petalostemon decumbens Nutt. Journ. Acad. Phila. 7: 93. 1834. 
Northeastern Texas. 
KUHNISTERA EMARGINATA (T, & G.) Kuntze, Rev. Gen. Pl. 192. 
1891. 
Petalostemon emarginatum T. & G. Fl. N. Am.1: 311. 1838. 
A Texan species. 
_KUANISTERA EXILIS (A. Gray) ae Rev. Gen, Pl. 192. 1891. 
Petalostemon exilis A. Gray, Pl. Wright. 2: 41. 1893. 
New Mexico, Arizona and Mexico. The bracts of this plant 
are like those of true Da/ea, but there are only five stamens, hav- 
ing the structure of those of Kuhunistera. As stated by Gray in 
the original description, “ The lowest bracts broader and less sub- 
ulate-pointed than the upper,” in this respect having the same 
character as K. pinnata. 
KuanisTera Feayi (Chapm.) Nash, Bull. Torr. Club, 22: 149. 1895. 
Fetalostemon Feayi Chapm. FI, States, Suppl. 615. 1884. 
