May, 1910.] Rare Plants at Barnesville, Ohio. i6i 



4. Cubelium concolor (Forst.) Raf. One station was discov- 

 ered for tlie 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 nu:stard 

 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. 



6. 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, usuallv 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. 



