84 Rhodora [Mat 



In 1902, another field of fall-seeding gave me the following 

 species : — Ranunculus tnicranthus, Nutt., Arabis perfoliata, Lam., 

 Barbarea stricta, Andrz., Brassica juncea, Cosson, Camelina micro- 

 carpa, Andrz., Cardamine parviflora, L., Erysimum cheiranthoidcs^ L., 

 Sisymbrium canescens, Nutt., i^". Sophia, L., Arenaria serpyllifolia, L., 

 Saponaria Vaccaria, L., Si/ene antirrhina, L., a form somewhat 

 pubescent and with flowers fully open after sunset ! Erodium 

 cicutariutn, L'H^r., E. moschatum, Willd., Lotus arabicus, L. ?, Arte- 

 misia Ludoviciana, Nutt., Specularia per/oliata, A. DC, Giiia linearis, 

 Gray, EchiHospermum Kedowskii, Lehm., var. occidentale, Watson, 

 Myosotis 7'erna, Nutt., Veronica an>ensis, L., V. percgrina, L., Marru- 

 bium vulgare, L., Plantago Furs/iii, R. & S. {P. gnaphaloides, Nutt.), 

 Apera Spica-vetiti, Beauv., Bromus marginatus, Nees. As this field 

 is on an intervale below the woolen factory and is overflowed every 

 year, some of the above list were probably deposited there in waste 

 that was washed down in a period of high water. 



Eleven years ago, a pickle factory in this village was demolished 

 and the brine in the vats was turned upon the ground, thereby 

 saturating the soil with salt. In 1898 there sprang up a dense 

 carpet of Spergularia salina, J. & C. Presl., with a border of a bushy 

 form of Polygonum aviculare, L., and a colony of three plants of 

 Heliotropium Curassavicum, L. ! 



While teaching at Rumford Center, Me., fifteen years ago, I was 

 greatly interested in the circumstances attending the appearance and 

 disappearance of Euphorbia glyptosperma, Engel. At that time there 

 was a steam saw-mill on the outskirts of the village, and the method 

 of moving logs from the yard to the slip was by hitching a chain 

 around one end of a log and ''snaking" it, as they aptly called the 

 performance, to its destination. This kind of work tore up the sod, 

 making furrow-like places all over the yard. During the summer, in 

 these furrows, grew a profusion of the Euphorbia ; the next year 

 none could be found. Whence came it ? Whither did it go ? 

 North Berwick, Maine, 



