126 COMMON CANADIAN WILD PLANTS. 



4. E. macula'ta, L. Leaves serrulate, oblong-linear, mnm'n-/i,it, 

 pubescent, ti'ith a brownish blotch hi. f/n' c< n/rc, very <>l>li(juc at the 

 base. Ped ancles in dense lateral clusters. Glands of the involucre 

 with reddish petal like attachments. Pods sharyny antjlcd. 

 Roadsides. 



5. E. hypericifolia, L. Stem ascending. Leaves serrate, 

 often with a red spot or with red margins, oblique at the base, 

 ovate-oblong or oblong-linear. Peduncles in cymes at the entls <>J 

 the branches. Glands of the involucre with white or occasionally 

 irddish petal-like attachments. Pod smooth, obtusely angled. 

 Cultivated soiL 



Cnly the uppermost or floral leaves whorlcd or opposite. Stems erect. 

 Stipules none. Involucres 5-lobed; inflorescence uinbellifonn, in the 

 furls a/ Ike branches, and terminal. 



6. E. COrolla'ta, L. Conspicuous for the 5 bright-white false 

 lobec of the involucre, resembling petals ; the true lobes very small. 

 Gravelly or sandy soil. 



* * * Involucres chiefly in terminal umbels, and their glands always without 

 petal-like attachments. Leaves without stipules or blotches, I hose of the 

 stem alternate or scattered, the floral ones usually of a different shape, 

 and whorled or opposite. 



7. E. platyphylla, L. Umbel 5-rayed. Stem erect, S-18 

 inches high. Upper stem-leaves lance-oblong, acute, serrulate, 

 the uppermost heart-shaped, the floral ones triangular-ovate and 

 cordate. Pod warty Shores of the Great Lakes. 



8. E. HelioSCO'pia, L. Umbel first 5-rayed, then with ,'5, and 

 finally merely forked. Stem ascending, 6-12 inches high. Leaves 

 all obovate, rounded or notched at the apex, serrate. Pods 

 smooth. Along the Great Lakes. 



Q. E. Cyparis'sias, L., with densely clustered stems, and 

 crowded linear stem-leaves (the floral ones round heart-shaped), 

 and a many-rayed umbel, has escaped from gardens in some 

 localities. 



2. ACALY'PHA, L. THREE-SEEDED MERCURY. 



A. Virgin'ica, L. Flowers mona'cious, both kinds having a 

 calyx, the staminate 4 -par ted, the pistillate 3-5-parted ; no invo- 

 lucre. Staminate flowers very small, in spikes, with 1 .'{ pistil- 

 late flowers at the base, in the axil of a large leaf-like 5-9-lobed 



