2 Muhlenbergia, Volume 3 
the country, or tarrying for but a limited period, collected what 
came in his way. Yet the failure to rediscover such a plant 
may be due to its extreme rarity, and the happy chance of any 
day may bring it again to light; or it may be an actual disap- 
pearance. Most of us can call to mind more than one instance 
of such apparent extinctions, either at last re-established, or yet 
unaccounted for. Such experience should stimulate those who 
have the opportunity for search to endeavor the rediscovery of 
these elusive or doubtful plants. 
But an early record is to be regarded with suspicion when 
it sporadically locates in one region a plant which later investi- 
gations indicate as belonging regularly to a different horizon. 
Especially does this doubt attach when the plant its said to be 
common;” for one may occasionally pick up a straggler quite 
out of its proper habitat. And, indeed, it would be strange dd 
not errors sometimes occur, when one considers the ease with 
which locality labels, or numbers, might be misplaced in col- 
lections made during long journeys, perhaps of thousands of 
miles. 
These early recorded plants that have failed of subsequent 
discovery must remain a doubtful element in our fora. A much 
more thorough acquaintance with our plant life must be acquired 
before they may be definitely dropped. 
ANDROPOGON SCOPARIUS Michx. Fl. 1: 87. 
This grass was reported from “southern California” by 
Scribner in Am. Grasses, 1: 19, on a specimen in the National 
Herbarium labeled “427 S. M. Tracy, 1887. Sabinda, Cal.” 
According to Mr. Tracy it should read ‘472. Salida, Col.” 
PANICUM CAPILLARIOIDES Vasey, Cont. U. S. Nat. Herb. 1s 54. 
Reposted by Scribner, Am. Grasses, 2: 52, as extending 
from ‘southern California to Texas,” but all the material in the 
National Herbarium is from the latter State, nor can I learn of 
any collections in our litnits. 
