372 Karl M. Wiegand and Arthur J. Eames 



d. Leaves sessile, often clasping. 



e. Racemes rather close, straight ; fruiting pedicels 3-5 mm. long ; leaves 

 entire, or obscurely crenate-serrate. 

 /. Capsule orbicular or short-oblong, scarcely retuse ; upper leaves 

 elliptic-oval or obovate; racemes glabrous. 2. V. Anagallis-aquatica, 



var. latifolia 

 f. Capsule broader than long, slightly emarginate ; upper leaves linear- 

 lanceolate or oblong-lanceolate, broad-based ; racemes glandular- 

 pubescent. 2a. V. A., var. glandulosa 

 c. Racemes loose, very slender, zigzag; fruiting pedicels 10-15 mm. long; 

 leaves linear, remotely denticulate. 3. V. scutellata 

 c. Leaves hairy, more or less rugose. 4. V . officinalis 

 b. Racemes or spikes terminal, or flowers axillary and solitary; annuals or 

 perennials. 

 c. Flowers in a terminal spike or raceme, only the lower flowers in the axils 

 of normal foliage leaves. 

 d. Leaves rather thick, inconspicuously veiny, entire or shallowly toothed, 

 glabrous. 

 c. Plant perennial from a creeping matted base ; leaves ovate-oval ; capsule 

 broader than long; corolla pale, exceeding the calyx. 



5. V . scrpyllifolia 

 e. Plant annual, erect ; leaves oblong ; capsule orbicular ; corolla pale, 

 shorter than the calyx. 

 /. Stems glabrous or practically so. 6. V . peregrlna 



f. Stems glandular-puberulent. 6a. V. p., var xalapensis 



d. Leaves thin, rugose, coarsely toothed, hairy ; corolla small, blue ; annuals. 



7. V. arvensis 



c. Flowers all in the axils of normal foliage leaves, the latter broadly ovate, 

 rugose, coarsely toothed, hairy ; annuals. 

 d. Corolla scarcely exceeding the calyx ; capsule orbicular, slightly notched. 



8. V. agrestis 



d. Corolla much exceeding the calyx ; capsule broadly obcordate or reniform, 

 broadly notched. 9. V. Toumefortii 



a. Tube of corolla equaling or exceeding the calyx ; capsule oblong-ovate, acute, 

 not compressed ; tall perennials, with whorled leaves. 10. V. virginica 



1. V. americana Schwein. American Brooklime. 



Ditches, brooks, and other wet places, on clays or gravels in more or less cal- 

 careous districts ; common. June-July. 



Generally distributed throughout the basin, except in the more acid soils of the 

 higher hills. 



Newf. to Alaska, southw. to N. C, Pa., the Great Lakes, Nebr., N. Mex., and 

 Calif. ; rare or absent on the Atlantic Coastal Plain. 



2. V. Anagallis-aquatica L., var. latifolia (Britton) Farwell. (See Papers Mich. 



Acad. Sci. 2:40. 1923. V. Anagallis, in part, of Cayuga Fl.) 



In ditches and pools, in calcareous regions ; scarce. Aug. 



Base of hill n. of Lick Brook; end of lower switchback, D., L. & W. R. R., South 

 Hill; backwater below Beech Woods, Six Mile Creek (C. C. Thomas & A. J. E.) ; 

 Eddy Pond, Cascadilla Glen, 1882 (D.) ; marsh w. of Inlet. 



Conn, to N. Y., southw. to N. J. and Pa. ; absent on the Coastal Plain. 



The first varietal name is var. latifolia Britton. 



