1922] Flora of the Boston District, —K XXV. 95 
TORILIS. 
` T. LEPTOPHYLLA (L.) Reichenb. Waste field, Lynn (L. A. Went-. 
worth, Aug. 1, 1902), specimen in herb. Gray. Native of Europe. 
ZIZIA. 
Z. aurea (L.) Koch. Fields and meadows, frequentnorth and west 
of Boston. 
CORNACEAE. 
CORNUS. 
C. alternifolia L. f. Roadsides and open woods, common, but no 
reports from southeastern towns. | 
C. Amomum Mill. Wet thickets and borders of streams, common 
throughout. 
C. canadensis L. Rich damp woods, occasional; reported as far 
south as Scituate, Norwell and Wrentham. 
C. florida L. Dry woods, frequent throughout. 
C. obliqua Raf. (C. Purpusi Koehne). See RHopora xii. 122, 
1910. Moist soil; Topsfield, Malden, Medford, Lincoln, Cam- 
bridge, Watertown, Milton, Dover. 
C. paniculata L'Hér. Roadsides and damp thickets, common. 
C. rugosa Lamarck (C. circinata L'Hér). See RHODORA xii. 122, 
1910. Ledges and dry woods; frequent from Hingham, Quincy and 
Sherborn northward. 
C. stolonifera Michx. Banks of streams, rare in our territory. 
NYSSA. 
N. sylvatica Marsh. Woods and swamps, common; especially abun- 
dant in southeastern towns. 
C. H. KNOWLTON Committee on 
WALTER DEANE Local Flora. 
