VIOLACEAE. 633 



7. Lechea Leggettii Britt. & Holl. Leggett's Pin-weed. (I. F. f. 2480.) 

 Erect, rather slender, strigose-pubescent, 2-5 dm. high. Branches slender; leaves 

 of the stem linear or linear-oblong, 10-25 mm - lon S> I_2 mm - wide, sessile or nearly 

 so; leaves of the basal shoots oblong linear, 4-6 mm. long, I mm. wide, acute; 

 panicle open; inflorescence somewhat secund; pedicels 1-2 mm. long; outer sepals 

 nearly equalling the inner. In open places, Mass. to Ind. and N. Car. July-Aug. 



8. Lechea intermedia Leggett. Large-podded Pin-weed. (I. F. f. 2481.) 

 Erect, 2-6 dm. high, sparingly stribose-pubescent. Branches erect or nearly so, 

 short; leaves of the stem oblong-linear. 12-28 mm. long, 2-5 mm. wide, acute, 

 nearly sessile; leaves of the basal shoots oblong-linear, shorter; pedicels 2-4 mm. 

 long; outer sepals about equalling the inner; capsule subglobose or depressed- 

 globose, about 2 mm. in diameter. In dry open places, Penn. and N. J. to N. B., 

 northern N. Y. and Ont. July-Aug. 



9. Lechea juniperina Bicknell. Maine Pin-weed. (I. F. f. 2482.) Tufted, 

 1-5 dm. high, finely hoary to canescent. Branches short, ascending or erect, leafy, 

 forming a dense narrow panicle; stem-leaves ascending or appressed, glabrous, ex- 

 cept the midrib and margins, linear-oblong to oblanceolate, 10-20 mm. long, 2-4 

 mm. wide; flowers crowded; pedicels 1-3 mm. long; fruiting calyx ovoid-ellipsoid, 

 1.5 mm. long; inner sepals elliptic, nerveless or faintly 3-nerved, often deep purple, 

 the outer shorter, bright green; leaves of basal shoots oblong or elliptic, 4-6 mm. 

 long. Me., N. H. and N. S. Aug. 



10. Lechea stricta Leggett. Bushy or Prairie Pin-weed. (I. F. f. 2483.) 

 Erect, 3-4 dm. high, fastigiately branched, strigose-canescent, pale, bushy. Branches 

 ascending or nearly erect; leaves of the stem linear-oblong, 12-25 mm. long, 1-2 

 mm. wide ; leaves of the basal shoots linear-oblong, much smaller, I mm. wide or 

 less, acute; pedicels slender, 2-3 mm. long; outer sepals shorter than or equalling 

 the inner. In dry open places, Wis., 111., Iowa and Minn. July-Aug. 



Family 5. VIOLACEAE DC* 



Violet Family. 



Herbs, shrubs, or rarely trees, with basal or alternate, simple, lobed or 

 entire stipulate leaves and solitary or clustered, perfect, mostly irregular 

 flowers. Sepals 5. Petals 5, hypogynous, imbricated in the bud, the 

 lower one larger or with a posterior spur. Stamens 5 ; anthers erect, con- 

 nivent or syngenesious. Ovary simple, 1 -celled, with 3 parietal placentae. 

 Fruit usually a loculicidal capsule. Seeds anatropous. About 15 genera 

 and 325 species, of wide distribution. 



Sepals more or less auricled at base. 1. Viola. 

 Sepals not auricled at base. 



Petals nearly equal: anthers syngenesious. 2. Cubelium. 



Petals unequal; anthers only connivent. 3. Calceolaria. 



1. VIOLA L. (See Appendix.) 



Acaulescent and scapose or leafy-stemmed herbs, the flowers solitary or rarelv 

 2; early flowers petaliferous, often sterile, usually succeeded by apetalous or cleis- 

 togamous flowers which are abundantly fertile. Petals spreading, the lowermost 

 one spurred or saccate; stamens 5, the two inferior ones spurred. Capsule 3-valved, 

 elastically dehiscent. About 175 species, of wide distribution. 



♦ACAULESCENT; FLOWERS SCAPOSE. 



t Plants not stolon iferous. 



\ Leaves mostly lobed or parted (except in one variety of V. palmata.) 



Petals bearded ; cleistogamous flowers produced freely. 



Plants always more or less pubescent. 1. V. palmata 



Plants comparatively glabrous, or with only slight pubescence. 



♦Contributed bv Mr. Charles L. Pollard. 



