May, 1910.] 
Rare Plants at Barnesville, Ohio. 
1 6 1 
4. Cubelium concolor (Forst.) Raf. One station was discov- 
ered for the green violet in 1903. It was on a clay bank in a 
dense wood and has increased but little in size. Since then two 
other stations have been found, one of them in a bright sunny 
spot on the roadside. 
5. Barbarea praecox (J. E. Smith) R. Br. First noticed by 
the writer in 1902 in a pasture field when only a few plants, not 
over six inches in height, were seen. Each year since, more 
plants have been found until 1909 when it could no longer be 
called rare. It is a plant of the pasture fields. It is usually 
called mustard because it resembles somewhat the black mustard 
as to the color of the flowers. The early winter cress blooms 
from ten days to two weeks before Barbarea barbarea (L.) MacM. 
It is a perennial but blooms the first year. 
G. Synandra hispidula (Michx.) Britton. Found first in a 
ravine on the edge of a wood in 1902. Only one station. It is 
most abundant in alternate years and is biennial. The station 
was partly destroyed in 1909 when one side of the ravine was 
cleared. 
7. Chaerophyllum procumbens (L.) Crantz. First seen in 
1907 in an open thicket on a south hillside, peeping out from 
beneath an aged wild gooseberry bush. While it produces many 
seeds, it does not seem to spread very much. 
8. Quamasia hyacinthina (Raf.) Britton. Also found in 
1907. Station in a swampy place in a meadow. Plants very 
strong and thrifty. 
9. Triosteum perfoliatum L. Found along a fence between 
a road and a pasture field. One station. Plants spreading 
rapidly. May be found elsewhere within our region as it is 
common just over the line in Guernsey County. 
10. Potentilla pumila Poir. Found occasionally in pasture 
fields, usually in poor soil. Does not seem to spread. 
11. Potentilla recta L. Found in a pasture field on a high 
hill. About a dozen plants seen in 1908 but not seen in 1909. 
The plants were vigorous and well-developed. 
12. Silene virginica L. Found occasionally in an open 
thicket. Though a perennial it does not seem to spread rapidly. 
13. Silene stellata (L.) Ait. Abundant in one station — a 
wood which has never been pastured or cleared out in any way. 
Many rocks are found there, some of them lying just beneath the 
surface of the ground. Over these rocks this campion grows 
plentifully. It can be transplanted easily. 
14. Silene noctiflora L. Not common with us as it seemed 
to be near Wooster, O. One station only observed. This is on 
the roadside just outside of a garden, and was first noticed by the 
writer in 1902, 
