12 Muhlenbergia, Volume 9 
conclusion. The species are abundautly distinct. 7. dichoto- 
mum was named from specimens collected by Douglas in Cali- 
fornia in 1833. There are two sheets, one in Hooker’s herbar- 
ium, the other in Bentham’s. The type specimen on Hooker’s 
sheet is a large one, and corresponds very closely with those 
from Antioch, Contra Costa county collected by Mrs. Brandegee, 
Davy and myself. In the original description of 7. dichotomum 
the statement “the calyx quite as long or rather longer than the 
corolla,” is not quite true even in the type, although it appears 
so in mass, and more so on account of the dried up condition of 
the corolla. 
It is unfortunate that Miss McDermott should have had so 
good a species as amoenum illustrated under the name of at- 
chotomum. If one has nothing but the seeds of the two species 
they could readily see the great difference between them. We 
have been fortunate enough to secure a large quantity of seed of 
amoenum from the type locality, and have grown it successfully 
under cultivation. 
I was interested in finding a specimen of 7. amoenum at 
Kew, collected by Lobb in California, with the number 270. 
From the account by Miss Eastwood in Muhlenbergia 7: 20, of 
Lobb’s explorations, we should gather that the plant was col- 
lected some time between 1850 and 1860. The sheet remained 
in the herbarium without a name until Dr. Greene discovered it 
and placed on it in pencil 7: amoenum. It was evidently not 
recognized as 7. dichotomum. ‘The following differences may 
be found between amoenum and dichotomum: 
AMOENUM aichotomum 
Seeds light vellow, devoid of Seeds light brown, smaller, 
markings, ovoid. faintly mottled, elliptical. 
Corolla very large, extending Corolla smaller,extending 2.5 
4mm. beyond the calyx teeth. mm. beyond the calyx teeth. 
Leguine very hairy at apex. Legume glabrous, narrow, 
acuminate at apex. 
Calyx teeth covered very den- Calyx teeth covered with 
s‘lyv with soft plumose hairs straight hairs. 
