Vox,. II.] 



ROCK-ROSE FAMILY. 



441 



i. Hudsonia ericoides I,. Heath-like 



Hudsonia. (Fig. 2473.) 

 Hudsonia ericoides L. Mant. x: 74. 1767. 



Bushy-branched from the base, greenish, 

 softly-pubescent throughout, 4 / -7 / high, the 

 principal branches slender, ascending. Leaves 

 subulate, 3 // -4 // long, somewhat spreading, 

 densely imbricated on the younger branches, 

 more scattered on the older ones; pedicels very 

 slender, $"-"&" long; flowers numerous, about 

 4 /x broad; sepals 2 // -3 // long, acutish; stamens 

 12-18; capsule oblong, slightly pubescent; seeds 

 about 3. 



In dry sandy soil, especially in pine-barrens, 

 mainly near the coast, Nova Scotia to Virginia. 

 Also at North Conway, N. H. (Miss Minns). May- 

 June. 



2. Hudsonia tomentosa Nutt. Woolly 

 Hudsonia. False Heather. Beach 



Heather. (Fig. 2474.) 



Hudsonia tomenlosa Nutt. Gen. 2: 5. 1818. 



Densely tufted and intricately branched, mat- 

 ted, hoary-pubescent, pale, 4 / -8 / high; branches 

 stout, ascending. Leaves \" long, oval or ob- 

 long, densely imbricated and appressed; flowers 

 sessile, or on pedicels less than i // long, numer- 

 ous, slightly smaller than those of the preceding 

 species; sepals obtuse; stamens 9-18; capsules 

 ovoid, glabrous, usually i-seeded. 



In sands of the seashore and in pine-barrens, 

 Maryland to New Brunswick, and on lake and river 

 shores west to Slave Lake and the Lake of the 

 Woods. May-July. Called also Poverty Grass. 



3. LECHEA L. Sp. PI. 90. 1753. 



Perennial branching herbs, often woody at the base, with small entire leaves and minute 

 panicled greenish or purplish flowers. Sepals 5, the 2 outer smaller and narrower. Petals 



3, ovate to linear, inconspicuous, persistent. Stamens 3-12. Stigmas 3, nearly sessile, 

 laciniate, prominent when the plant is in flower. Capsule 3-valved, 3-celled, or by oblitera- 

 tion of the dissepiments i -celled, about 6-seeded. Embryo curved or spiral. [Named for 

 Johan Leche, a Swedish botanist, died 1764.] 



A genus about of 14 species, n of them natives of eastern North America, I Texan, i Cuban 

 and i Mexican. Species indiscriminately known as Pin-weeds. The characteristic basal shoots 

 appear late in the season. 

 Leaves of the basal shoots oblong or ovate, not more than 3 times as long as broad. 



Outer sepals longer than the inner; panicle very leafy. i. Z,. minor. 



Outer sepals equalling or shorter than the inner. 



Pod oblong; pedicels slender, i"-2" long. 2. Z,. racemulosa. 



Pod globose; pedicels about 'A" long. 



Erect, yillous-pubescent. 3. Z.. villosa. 



Ascending, bushy-branched, tomentose-canescent. 4. Z.. maritima. 



Leaves of the basal shoots lanceolate or linear, usually more than 3 times as long as broad. 



Stem-leaves narrowly linear; inner sepals i -nerved. 5. Z,. tenuifolia. 



Stem-leaves oblong-linear; inner sepals 3-nerved. 

 Plants green, more or less pubescent. 



Pod obovoid, 1 A" in diameter; panicle-branches ascending or spreading. 



6. Z,. Leggettii. 



Pod globose, about i" in diameter; panicle-branches nearly erect, loosely flowered; 



flowers slender-pedicelled. 7. Z,. intermedia. 



Pod oval, about I /4" in diameter; panicle-branches erect-ascending, densely flowered; 



flowers short-pedicelled. 8. L. juniperina. 



Plant pale, canescent; pod globose, %" in diameter. 9. L, stricla. 



