Flora of Vermont 195 



LORANTHACEAE. MISTLETOE FAMILY 



ARCEUTHOBIUM. (RAZOUMOFSKYA) 



A. pusillum Peck. Dwarf Mistletoe. Parasitic on spruces and tama- 

 racks, mainly in swamps; occasional, Rhod. 2: 1. 



ARISTOLOCHIACEAE. BIRTHWORT FAMILY 



ASARUM. Wild Ginger 

 A, canadeuse L. Rich rocky woods; common. 



POLYGONACEAE. BUCKWHEAT FAMILY 



FAGOPYRUM. Buckwheat 



F. esculeutum* Moench. (F. Fagopyrum [L.] Karst). Buckwheat. 



Persisting from cultivation. 

 F. tartaricuni* (L.) Gaertn.. India Wheat. Persisting in cultivated 



fields. 



POLYGONELLA. Jointweed 



P. articiilata (L.) Meisn. Coast Jointweed or Knot Grass. Sandy 

 shore of Lake Champlain, Colchester, (Pringle, Mrs. N. F. Flynn) ; 

 Brattleboro, 1844, (T. W. Higginson) ; Highgate, (Blewitt) ; Milton, 

 (Griffin). 



POLYGONUM. Knotweed 



F. acre HBK., var. leptostachyum Meisn. (Persicaria punctata, var. 

 leptostachyum Small). Water Smartweed. Wet meadows of the 

 lower altitudes of western Vermont; occasional. 



P. ampliibium L. (Persicaria amphibia [L.] S. F. Gray). Water Per- 

 sicaria. Margins of ponds and slow streams; frequent. Var. 

 Hartwrightii (Gray) Bissell. (Persicaria Hartwrightii Gray). 

 Marshes; occasional. Forma terrestre (Leers) Blake. Colchester, 

 Fairfield and Swanton, (Blake). 



P. arifolium L. (Tracaulon arifolium [L.] Raf.) Halberd-leaved Tear- 

 thumb. Low grounds; frequent in Champlain Valley. East Claren- 

 don, (Kirk); Pownal, (Eggleston). 



P. ariculare L. Knotgrass, Doorweed. Dooryards and roadsides; 

 common. 



P. aTiculare L., var. aHg'ustissinmra Meisn. (P. neglectum Besser). 

 Sandy beaches; occasional. 



P. aviciilare L., var. vegetuiii Ledeb. In moister situations than type; 

 frequent. 



P. Careyi Olney. (Persicaria Careyi [Olney] Greene). Brattleboro, 

 (Frost, Grout) ; Newfane, (Grout) ; Cavendish Gorge, (Fernald) ; 

 Westminster, (W. H. Blanchard) ; Stowe, (Mrs. Carrie E. Straw). 



P, cilinode Michx. (Tiniaria cilinode [Michx.l Small). Fringed Black 

 Bindweed. Rocky copses; frequent. 



