9 
compare with my No. 241 of Idaho mosses, the species referred 
to above. Upon comparison with No. 469 of Macoun’s Cana- 
dian mosses, Platygyrium rupestre, Kind., later Tripterocladium 
vupestris, it is impossible to avoid the conclusion that Macoun’s 
No. 469 merely represents the flagelliferous state of the plant, 
with more elongated and longer,acuminate leaves than the fer- 
tile plant characterized in the Manual. 
JOHN B. LEIBERG. 
Ballast-Plants at South Bethlehem, Penn. 
Near the iron furnaces of that inland city are large heaps of 
ores brought over the seas as ship-ballast from Spain, Africa, and 
the West Indies, and transported thither by railroad from New 
York. On these heaps, as usual, foreign plants have appeared, a 
few of which were first observed some years ago by Messrs. C. 
N. Lochman and E. A. Rau, but during the past two seasons 
quite a number were collected by Mr. Robert G. Bechdolt, who 
placed them in my hands for determination, and a list is given 
below. It is worthy of note that they” all, except two—Chrysan- 
thellum procumbens, Rich. and Euphorbia Ti erratina, L.—-have 
already been reported as occurring on the ballast-grounds at 
New York, Camden, and Philadelphia. 
Brassica Sinapistrum, Boiss. 
Sisymbrium orientale, L. 
Erysimum repandum, L. 
Saponaria Vaccaria, L. 
Polycarpon tetraphyllum, L. f. 
Tribulus terrestris, L. 
Cytisus scoparius, Link. 
Melilotus Indica (L.) All. hy 
Trifolim procumbens, 1. var. minis, Koch.) ts 
Medicago lupulina, L. é 
Medicago denticulata, Willd. 
Vicia sativa, L. 
Vicia hirsuta, (L.) Koch. 
Scorpiurus subvillosa, L. 
Sherardia arvensis, L. 
Calycera halegae Rich. 
ro: a 
¥ 
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