464 Canadian Record of Science. 



Probably indigenous, though not before recorded from 

 Ontario. 



Tkifolium dianthum, Greene, Pittonia, Vol. III., p. 217. 



A^ery dwarf perennial, the rather stoutish stems, 

 scarcely an inch long, surpassed by the upper petioles and 

 peduncles ; herbage deep green and very glabrous ; leaflets 

 obcordate or obovate, about \ inch long, rather sharply 

 and mucronately dentate ; peduncles shorter than the 

 leaves, bearing an involucrate pair of purple flowers ; 

 involucre large for the plant, lacerately cleft ; calyx with 

 10-nerved tube shorter than the teeth, these with oblong- 

 lanceolate body tapering to a stoutish aristiform apex ; 

 corolla twice the length of the calyx, the petals purple, 

 tipped with white. 



Species founded on specimens collected at Esquimault 

 near Victoria, Vancouver Island, by Prof. Macoun, May 

 13th, 1893. Herb. No. 97, and distributed as T. pauci- 

 Jiorum. Specimens collected at the same place by Prof. 

 Macoun in 1875, and labelled T. paucijloruni var. (Herb. 

 No. 18,015), are this species. 



Tripoli UM agrarium, L. 



New Westminster, B.C. {A. J. Hill.) Not recorded 

 west of Ontario. 



Prunus mahaleb, L. 



Mountain side at Hamilton, Ont., May 15th, 1895. 

 {J. M. Dickson.) Well naturalized. Not. before recorded 

 from Canada. 



Aster angustus, T. & G. 



Growing in railway round-house at Montrose, Ont. 

 {R. Cameron.) Introduced from the west along railway. 



Erigeron Macounii, Greene, Pittonia, Vol. III., p. 162. 

 Low perennial, with a stout branching caudex bearing 



