1903.] NATURAL SCIENCES OF PHILADELPHIA. 667 



pale and glabrous beneath, except on the basal part of the midrib which, 

 with the petiole (60 mm.), is distinctly pubescent. These specimens 

 bear "stolons" 100 mm. long, which I have not found rooting, but 

 which bear several small lanceolate bracts and a leaf 25 x 35 mm., with 

 several cleistogenes on very short pedicels. Still later specimens, Au- 

 gust 4, have the leaves darker green and nearly or quite glabrous, as 

 are the petioles; cleistogenes in fruit, nearly ripe. 



2. Viola blanda Willd. 



Viola blanda Willdenow, 1806, Hortus Berolien. PI. XXIV. 



Range. — Through southeastern Pennsylvania and southern New 

 Jersey, west of the pine barrens ; the records of its occurrence toward 

 the mountains are in part confused with V. leconteana. Rather local, 

 though not rare about Philadelphia. 



Habitat. — Low woodlands in moist ground along streams; usually 

 growing in large colonies. 



Description. — ^a.Tly flowering plant. Sherwood, Philadelphia, 

 April 10, 1903. No. 5,159, Herb. W. S. Root-stalk slender with dried 

 stolons of previous year still adherent. Flowers white, somewhat fra- 

 grant, 10 mm. broad, lower petal heavily lined with dark purple and 

 lateral petals with two or three lines, all glabrous; sepals lanceolate, 

 acute. Leaves thin, lighter beneath, glabrous; crenatc, orbicular or 

 the earliest rcniform, cordate at base, 25 x 30 mm.; petioles 40 mm., 

 glabrous. 



Fruiting plants, Sherwood, June 17, 1903. No. 5,160, Herb. W. S. 

 Leaves very thin, with a few scattered hairs above and on the veins 

 beneath, size 80x90 mm.; petioles glabrous, 180 mm. long. Stolons 

 very slender, 130 mm., still without leaves. Cleistogenes on some 

 plants only, and very slender, their scapes 15 mm. long, horizontal. 

 In later specimens, August 18, from Chester county, Pennsylvania, 

 the stolons bear small leaves and a few minute cleistogenes. The 

 sinus becomes mucli more open in the late summer leaves. 



3. Viola leconteana Don. 



Viola avioena Le Conte, 1S28, Ann. Lvc. X. Y., II, p. 144 {nee Symonds, 



1798). 

 Viola leconfeana Don, 1831, Gen. Syst., I, p. 324. 

 Viola alsophila Greene, 1899, Pittonia, IV, p. 7. 



i^angrg.— Abundant in the mountains, extending southward in cold 

 rocky woods to the lower Susquehanna in York and Lancaster counties, 

 and the Brandywine below Chadd's Ford, Delaware county. 



Habitat usually on damp shady rocky banks, though in the mountains 

 it is found pretty generally throughout the forests, and is the most 

 abundant violet. 



