80 CISTACEJ:. Htosonia. 



3. HUDSONIA. Linn. mant. 11 ; Endl. gen. 5031. BVDSONIA. 



[Named in honor of William Hudson, aatbor of the Flora Anglica.] 



Sepals united at the base ; the two outer ones subulate, and often minute ; the three inner, 

 oblong or oval, colored within, spreading in flower, connivent in fruit. Petals 5, oblong- 

 obovate, somewhat fugacious. Stamens 9 - 30. Style filiform, straight : stigma minute. 

 Capsule oblong-obovoid, 1-celled, 3-valved : placentas nerve-like, in the axis of the valves. 

 Seeds 1-2 (or by abortion fewer), arising from the base of each placenta on short filiform 

 ascending funiculi, minutely granulated. Embryo (in H. ericoides) slender, spirally convolute 

 in the midst of the thin albumen. — Low, diffusely and much branched shrubby plants, 

 forming dense tufts. Leaves subulate or acerose, densely imbricated, without stipules, 

 pubescent or tomentose, persistent. Flowers yellow, terminating the short branches. 



1. HuDsoNiA ERICOIDES, Linn. Heath-like Hudsonia. 

 Plant canescently pubescent, erect, with the branches somewhat decumbent ; leaves subu- 

 late, slightly spreading ; peduncles exserted, longer than the flowers ; sepals acutish ; capsules 

 oblong, slightly pubescent, 1 - 3-seeded. — Linn. mant. p. 74; Willd. hort. Berol. t. 15; 

 Pursh, fl. 2. p. 364 ; Nutt. gen. 2. p. 4 ; Torr. compend. p. 215 ; DC. prodr. 1. p. 285 ; 

 Bot. cab. t. 192 ; Torr. ^ Gr. Jl. N. Am. 1. p. 154. 



Plant 5-8 inches high ; primary branches elongated ; floral ones short. Flowers about 

 5 lines in diameter. Stamens 12 - 15 : anthers roundish. Ovary villous : style about as 

 long as the stamens. Capsule smooth, oblong. Seeds oblong, grayish. 



Sandy woods, Suffolk county, Long Island. May and early in June. 



2. HiDsoxiA TOMENTOSA, Nutt. Woolly SudsoJita. 



Whitish-tomentose ; stems ascending ; leaves minute, ovate-oblong, acute, very closely 

 imbricated ; flowers nearly sessile (ihe peduncles not longer than the leaves) ; sepals obtuse ; 

 capsules ovate, commonly one-seeded. — Nutt. gen. 2. p. 5; Bigel. Jl. Bost. p. 213 ; DC. 

 prodr. 1. p. 285 ; Torr. compend. p. 216 ; Sweet, Cist. t. 57 ; Hook. ft. Bor.-Am. \. p. 73. 

 H. ericoides. Lam. ill. t. 407? Richards, app. Frank, nar. ed. 2. p. 18. 



Stems very diffusely branched, forming dense tufts, 4 — 6 inches high ; the branches short. 

 Leaves about a line long. Flowers very numerous, rather smaller than in the preceding 

 species. Stamens 9-18. Ovary slightly villous. 



Seacoast of Long Island and shore of Lake Champlain. Fl. Latter part of May to the 

 middle of June. Easily distinguished from H. ericoides, by its short, closely imbricated, 

 hoary leaves and nearly sessile flowers. Both species are handsome little shrubs when in 

 full bloom, being almost covered with bright yellow flowers. 



