21 



From May 20th to June 1st. 



Co7nposit(e. 



Erio-eron b(Mjlclifoliii«5. , Robin's plantain. Fields. 



Senet'io aniens; '-^-p-*^'-^^-^-^ Go](leirra<j\voi-t. T,ow. wet grounds. 



Krigia Yirninica. Dwarf dandelion. Ledges and dry soil, 



var. dieiiotonia, A month later. 



C (try ophy liar ew . 



Silene antirrhina. .Sleepy cateliHy. Sandy waste plaees. 



Arenaria sei-])yUitolia. Thyme-leaved sandwort. " •' 



lateriflora, Sandy soil, neai' shore. 



peploides, .'Seashore sandwort Sands of the seashore. 



Lychnis diurna, Red lyehins. Rather com. garden esca|)e. 



Polyyonarete. 



Rumex acetoselhi. Field sorrel. FiVer}' where in fields, etc. 



Pilu'um Ttluipdnticiihi. Pie rhubarb. Cultivated. 



i > rolmnchacefv . 



Ai)hyllon uniflorum. One-tlowr'd cancer-root. Damp woodlands. 



Ot'chidacea'. 



Cyi)ripedinm acaule, I^ady's slipper. Dry woods; common, 



rjstei'a cordata, Twayljlade. Cold, damj) woods. 



*convallaroides. '• >i ^i 



Corallorhiza innata. C<)ral-root. " " 



*odontoi-hi7,a, '' '' "' 



Arethusa bulbosa, Arethusa. lioggy places ; common. 



Pogonia verticillata, Pogonia. Cold, damji woods. 



Microstylis monophyllcjs. Adder's-month. 



tLiparis liliifolia, Twayblade. '* *' 



Lceselii, •' Bogs. 



Borrayluacetv. 



Mjosotis verna. Scorpion grass. Drj-. samly ground. 



Ranunculacete . 



Thalictrum dioicum. Early meadow-rue. Rocky wootls, etc. 



Cor}iaee<v. 



Cornus florida. Flowering dogwood. Rich woods; b. two weeks. 



var. rubra. Red flowering dogwood. Lawns. 



Berberiddcete. 



Berberis vulgaris. Barberry. Naturalized. 



Podophythuii peliatwn., Mandrake. Gardens. 



*H.Willey. tT. A.Greene. 



