226 FLORA OF PHILADELPHIA. 



1. HuDSONiA ERicoiDES L. M. p. 631. Dry, sandy soil. Spring. 



New Jersey — Common in the pine-barrens. 



2. HuDSONiA TOMENTOSA Nutt. M. p. 631. Sandy shores. Early summer. 



Neiu Jersey — Common near the coast. 



3. LECHEA L. Pinweed. 



Leaves of the basal shoots oblong to ovate, not more than three times as long 

 as broad. 

 Outer sepals longer than the inner ; panicle very leafy. 1. L. minor. 

 Outer sepals equalling or shorter than the inner. 



Pod oblong; pedicels slender, 2-4 mm. long. 2. L. racemulosa. 



Pod globose; pedicels about 1 mm. long. 



Erect, viUous-pubescent. 3. L. villosa. 



Ascending, bushy-branched, tomentose-canescent. 



4. L. maritima. 

 Leaves of the basal shoots lanceolate or linear, usually more than three time* 

 as long as broad. 

 Stem-leaves narrowly linear; inner sepals 1-nerved. 5. L. tenuifolia. 

 Stem-leaves oblong-linear; inner sepals 3-nerved. 6. L. Leggettii. 



1. Lechea minor L. M. p. 632. Dry, sterile ground. Late summer, 



2. Lechea racemulosa Michx. M. p. 632. Dry and rocky soil. Summer, 

 8. Lechea vh,losa Ell. M. p. 632. Dry soil. Summer. 



4. Lechea maritima Leggett. M. p. 632. Sandy soil near the coast. 



Summer. 



5. Lechea tenuifolia Michx. M. p. 632. Dry, open places. Summer. 



Monmouth — Phalanx (C). 



6. Lechea Leggettii Britt. & HoU. M. p. 633. Dry, open places. Summer. 



Family 6. VIOL ACE AE DC. Violet FamUy. 



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



Sepals not auricled at base. 2. Cubelium. 



1. VIOLA L. Violet. 



Aeaulescent; flowers scapose. 

 Plants not stoloniferous. 



Leaves mostly lobed or parted (except in one variety of V. pal- 

 mata) . 

 Petals bearded; cleistogamous flowers produced freely. 

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

 Plants comparatively glabrous, or with only slight pubes- 

 cence. 2. V. Brittoniana. 

 Petals not bearded; cleistogamous flowers wanting. 



3. V. pedata. 

 Leaves merely crenate or dentate, or incised at base, none lobed. 

 Woodland species; peduncles of the cleistogamous flowers hori- 

 zontal or decumbent. 

 Leaves very thin, cordate -ovate, attenuate at apex; petals 



pale lilac. 4. V. ajfinis. 



Leaves thick, from ovate to reniform, obtuse or merely 

 acute at apex. 

 Petals dark violet-purple, narrow, the upper reflexed; 

 leaves glabrous. 5. V. papilionacea. 



Petals reddish-purple, nearly orbicular; leaves hispid- 

 pubescent above. 6. V. villosa. 



