FLORA OF WASHINGTON AND VICINITY. 49 



cornel; Viburnum acer if oliuni, V. dentatum, and V. nudum, ariow -woods; 

 Gaylussacia resinosa, the high-bush huckleberry; Vaccinium stamineum, 

 the deerberry ; V. vacillans and V. corymhosum, the blueberries; Leucoihoe 

 racemosa; Andromeda Mariana, the stagger-bush; Kalmia latifolia, the 

 American laurel or calico-bush; Rhododendron nudijlorimi, the purple 

 azalea or i)inxter-flower; and Lindera Benzoin, the spice-bush. 



Of vines, besides three species of grape which are abundant, we have 

 Ampelopsis Virginiana, the Virginian creeper or American woodbine, 

 Rhus Toxicodendron, the poison ivy, and Tecoma radicans, the trumpet 

 vine, which give great beauty and variety to the scenery. 



The most richly represented herbaceous species may be enumerated 

 somewhat in their systematic order. Of Polypetalm may be mentioned 

 Ranunculus repens, Gimicifuga racemosa, Dentaria laciniata, Viola ciicul- 

 lata, V. pedata, var. bicolor, and V. tricolor, var. arvensis; IStellaria puhera, 

 Cerastium ohlongifoUum, Geranium maculatum, Impatiens pallida, and /. 

 fulva; Desmodium nudiflorum, D. acuminatum, and D. Billenii; Vicia 

 Garoliniana, Potentilla Canadensis, Geum album, Saxifraga Virginiensis, 

 (Enothera fruticosa, and Thaspium barbinode. In the Gamopetalce before 

 Composited we have Galium Aparine, Mitchella repens, Houstonla purpurea, 

 and H. cwrulea. In the Compositce the most conspicuous are Vernonia 

 Noveboracense, Eupatorium purpureum, Liatris graminifolia. Aster xmtens, 

 A. ericoides, A. simplex, and A. miser; SoUdago nemoralis, S. Canadensis, 

 8. altissima, and 8. ulmifolia; Chrysopsis Mariana, Ambrosia trifida, and 

 A. artemisiwfolia (these behaving like introduced weeds); Relianthus 

 divaricatus, Actinomeris squarrosa, Rudbeckia laciniata, and R. fulgida ; 

 Coreopsis verticillata, Bidens cernua, Verbesina Siegesbeckia, Gnaplialium 

 polycephalum, Antennaria plantagini folia, Hieracium venosum, and H. 

 Gronovii; Nabalus albus and N. Fraseri; Lactuca Canadensis. 



The remaining Gamopetaloi invmsh as abundant species: Lobelia spi- 

 cata, Chimaphila umbellata, and C. maculata; Veronica officinalis and F. 

 Virginica; Gerardia Jlava, Verbena hastata, and V. urticwfoUa; Pycnan- 

 themum incanum and P. linifolium, Collinsonia Canadensis, Salvia lyrata, 

 Monarda fstulosa, and M. punctata; Nepeta Glechoma, Brunella vulgaris, 

 Mertensia Virginica, Phlox paniculata, and P. divaricata; Solanum Caro- 

 linense and Asclepias Cornuti. 



Of herbaceous Monochlamydece may be named Polygonum Virginianum, 

 P. sagittatum, and P. dumetorum; Laportea Canadensis, Pilea pumila, and 

 Bcehmeria cylindrica. 



Bull. Nat. Mus. No. 22 4 



