58 BOTANICAL GAZETTE. 



AnUrrhimnn Oront/'um, L. A few plants only. 



Scoparia flam, Cham. A single specimen this season. A few years ago it was very 

 abundant. 



Lycoptis £'w?'cij)r¥?<8, L., maintains itself year after year. 



Ballota riUjra, L. A few plants only. 



Stachys arcensis, L., and S. sylvatica, L. are frequent this year. Some curious f Jrms 

 of 5. palustris, L., occur in the dry sand. 



HeUotropium Europuunn, L. Very robust and wide-spreading specimens. 



Heliotropium Curassaviciun, L., has frequently occurred, but have seen none this 

 year. 



Tournefortin heliotrcpoides, Hook. A few plants only, all of which became destroy- 

 ed before the fruit fairly ripened. 



Solanxun sisymhriifolium. Lam. A few plants only, but thcv were nearly eaten ly 

 the potato bug before the fruit perfected. 



Datura Metel, L. A single specimen occurred this season. 



Nicotiana longifloni, Cav., has occasionally occurred in waste grounds. N. glauca, 

 Graham, a few plants only. A very handsome species indeed. 



Chsnopodiii)n2)oIyKpcrtiium,L. Very abundant this year. C.vuharia, L., quite com- 

 mon. The damp ballast ground seems to be the home for Chenopodium, Antaraiitus and 

 Atriplex in great quantities and a variety of forms. 



Salsola Kali, L., and Atriplex areimria, Nutt., from the sea coast, frequently occur. 



Amnrimiiis diflexiis, L. One specimen only this year. 



I'olygi»iuin Jier/iiarioides, Delili, I'rom the Mediterranean region. One plant only 

 this season. 



Several EwpJiorbins have been collected, E. serpens., H. B. K., occurred a few years 

 ago, but none seen this season. E. P(plis, L., three specimens only. E. PepUs, L., E. 

 HelioHcopin, L., and EJdhernn, L., are quite frequent. 



Ciirex iiiiiriaita, L. One plant only. 



Agrottls i<()ica-centi,\i. Quite abundant this year. Avery conspicuous and hand- 

 some grass when in flower. 



Culiuin tt'iiiulentian, L. Quite frequent. 



Loliiun ternulcniiiiii, L. Quite frequent. 



Holcus mollis, L. A few plants only. 



Phrugmites coimnunis, Trin. In dry sand. Prof Porter says "one of itsmany forms ;"' 

 but it looks strange in ccmiparison with the specimens from the Southern States. 



Andropogcn halepcnsis, Siblh. A few specimens. 



Pantnim niilidcea, L. Quite abundant. 



A great many species that are already described in Gray's Manual as introduced 

 plants occuried alumdantly both in this and former years, evidently recent importations, 

 but T did not deem it essential to include them in this article. Many strange looking 

 jilants have appeared, that have never flowered, hence could not be determined, and 

 some biennials h:ive aiipeared this year that may flower ne.xt, if the winter be not too 

 severe. It would be interesting to know if ballast deposited at other places 

 l)n)duces the same kind of plants. — Isa.u; C. Marti xd.vle, Cninden, N. J. Septemher 21, 

 187(i. 



P. S.— Since the above was written I collected, near the Wissahickon Station, on the 

 Philadelphia & Reading railroad, about four miles from Philadelphia, Leonv.u: gluuces- 

 cens, Bauge. This plant is from Northern Asia, and how it could get into the above 

 locality is somewhat of a mystery, as no ballast material has been transported to that 

 neighborhood, and it is not a garden plant, in this country, at least; it is possible, how- 

 ever, that the seeds may have been introduced among the exhibits to the Centennial Ex- 

 position, by way of Japan. It is very abundant this year, in the locality above men- 

 tioned, and the seeds have fully ripened, but it remains to be seen whether it will repro- 

 duce it.self another year c#not. — i. c. M. 



