1895. ] Musineon of Rajfinesque. 259 
In 1840, among Nuttall’s manuscript genera, Torrey and 
Gray published Musenium, which was evidently simply a Lat- 
inizing of Rafinesque’s Musineon, with which Nuttall was cer- 
tainly familiar. 
It seems clear, therefore, that the generic name Musenium 
must stand, but that it is not Nuttall’s, and tise retain the 
form Musineon originally published by Rafinesqu 
Our present understanding of the genus oar sts species is 
as follows: 
MUSINEON Raf. Jour. Phys. 91: 71. 1820. 
Marathrum Raf. Jour. Phys. set ror. 1819. not H. & B, 1808. 
Adorium Raf. Neogenyt. 3. 1825. 
Musenium Nutt. Torr. & Gray. Fl. 1: 642. 1840. 
*Calyx-teeth prominent: carpophore entire.—Rocky Mts. and 
lains to the eastward from Colorado northward. 
+ Stems dichotomously branching from the base: leaf-seg- 
ents toothed. 
++ Stems glabrous: fruit smooth, about g™ long. 
I. MUSINEON DIVARICATUM (Pursh.) Raf. Journ. Phys. 91: 
820. 
Seseli lucidum Nutt. Fras. Cat. = 3), name only. 
Seseli divaricatum Pursh. Fl. 723 
Marathrum divaricatum Rat. learn. Phys. aa 101. 1819. 
Adorium rye ag Raf. Neogenyt. 3. 18 
Adorium lucidum Kuntze, Rev. Gen. Pl. A 1891, 1 name only. 
Adorium divaricatum Rydberg, Bot. Surv. Nebr. 3: 37. 1894- 
++ ++ Stems scabrous: fruit scabrous, shorter and broader thar: 
in the former. 
2.. MUSINEON HOOKERI (Nutt.) Torr. & Gray, Fl. 1: 642. 1840. 
M. divaricatum Hookeri T. = G. l. c. 
- trachyspermum Nutt 
M. angustifolium Nutt. 1. = 
+ + Acaulescent, the jiseple peduncles much os the 
leaves: leaf-segments narrowly linear and entir 
3. MUSINEON TENUIFOLIUM (Nutt.) Torr. & nay Fl. 1: 
642. 1840. 
Adorium tenuifolium Kuntze, Rev. Gen. Pl. 264. 1891. 
