MIDDLESEX FLORA. 67 



U. purpurea, Walt. PURPLE BLADDER WORT. 



Generally distributed, but not common. Aug.-Sept. 

 U. resupinata, Greene. 



Round Pond, Tewksbury, Aug. 24, 1865 ; Silver Lake, Wilmington, 



Aug. 4, 1869 (Wm. Boott). Very rare. 

 U. cornuta, Michx. 



Common. July-Aug. 



OROBANCHACE>. BROOM-RAPE FAMILY. 



EPIPHEGUS, Nutt. 



E. Virginiana, Bart. BEECH-DROPS. 



Arlington, Cambridge and Winchester (Wm. Boott); Waltham 

 List; Framingham (Rev. J. H. Temple). Not common. Aug.- 

 Sept. 



APHYLLON, Mitch. 



A. uniflorum, Gray. ONE-FLOWERED CANCER -ROOT. BROOM- 

 RAPE. 

 Common. June. 



SCROPHULARIACE/E. FIGWORT FAMILY. 



VERBASCUM, L. 



V. THAPSUS, L. MULLEIN. 



Common. July-Sept. Nat. from Eu. 

 V. BLATTARIA, L. MOTH MULLEIN. 



Maiden (F. S. Collins) ; Concord (Minot Pratt) ; Stoneham (Mrs. 



P.D.Richards). Scarce. June-July. Nat. from Eu. 

 V. Lychnitis, L. WHITE MULLEIN. 



Westford (W. E. Coburn). June-Aug. Adv. from Eu. 



LIN ARIA, Tourn. 



L. Canadensis, Dumont. TOAD-FLAX. 



Common. A specimen from Chelmsford, collected by Dr. F. Nick- 

 erson, has the regular five-parted flower of the Peloria state. June- 

 Sept. 



L. VULGARIS, Mill. TOAD-FLAX. BUTTER-AND-EGGS. 

 Common. July-Sept. Nat. from Eu. 



L. Cymbalaria, Mill. COLISEUM-IVY. 



Lowell, "dumps" (Dr. C. W. Swan); Maiden (F. S. Collins). 

 Adv. from Eu. For description, see Wood's Bot. & PL 



