ST. JOHN: SABLE ISLAND. 75 
R. reptans L. (R. Flammula, var. rcptans (L.) Meyer.) Very 
common in the wet dune hollows. J. Macoun; H. T. Giissow; H. 
St. John, no. 1,235 (H). 
FL, Fr. — August. 
R. REPENS L. A rare introduction. Found only by J . Macoun 
(C. no. 21,132). 
Fr. — August. 
R. ACRis L. A weed at the Main Life Saving Station. J. Macoun; 
H. St. John, no. 1,236 and 1,237 (H). 
Fl. — August and September. Fr. — September. 
[Thalictrum dioicum L. Listed by .7. Macoun, and //. T. Giissoic, 
but the specimens are T. polygamnm, var. hcbccarpuvi.] 
Thalictrum polygamum Muhl., var. hebecarpum Fernald. 
Common on the stable, well vegetated dunes. J. D wight, Jr. (D. 
p. 13) mentions as one of the weeds " Thalictrum sp.?" As there is 
but one species of Meadow Rue growing on the island, and that very 
conunonly, we can feel rea.sonably sure that J. Dwight, Jr., found T. 
polygamum, var. hebecarpum. It is hard to understand, however, 
why he called it a weed. J. Macoun (C. no. 21,134); H.T. Giissow 
(E); 11. St. John, no. 1,238 (H). 
FI. — July and August. Fr. — August and Septeml)er. 
[T. zibp:llinum Greene. In the Ottawa Naturalist, xxiv. 30 
(1910) this new species was published, based upon the collection of 
./. Macoun (C. no. 21,134). I have examined the suite of specimens 
collected under this number and feel no hesitation ai)out stating that 
the plant should be treated as T. polygamuni, viw. hebecarpum.] 
Coptis trifolia (L.) Salisl). On the more permanent, grass- 
covered dunes. ./. Maeoini; II. St. John, no. 1,239 (H); //. >S. Glaze- 
brook (H). 
Fl. — June. 
CRUCIFERAE. 
Capsella BuRSA-l'ASTOUls (L.) Medic. .V weed at the Main Life 
Saving Station. ./. Macoun; (also as ''shepherd's purse" ^l. p. 
218 A); II. St. John, no. 1,240 (H). 
Fl, Fr.— August. 
