CXI. PHYTOLACCACEiE. 477 



4. R. vERTiciLLATUs. Naked^spiked Dock. 



Lvs. oblong-lanceolate; r«Zrcs entire, all bearing granules; spj/tes leafless 

 with dowers in half- whorls. — % Northern States. An aquatic species of muddy 

 gituaiions. Stem 2f high, with long, tubular .sheaths and few branches. Leaves 

 long, narrow, acute, flat. Whorls few-flowered. Pedicels ^ — 1' long. June. 



5. R. AauATicus. Great Water Dock. 



Lvs. lanceolate, acute, lower ones cordate, on long petioles ; valves ovate, 

 entire, all of them bearing gi-anules. — % Northern U. S. Ponds and ditches. 

 Root large, very astringent. Stem 3 — if high. Leaves somewhat glaucous, 

 the 1( wer ones distinctly cordate at base. Flowers verticillate, in a terminal, 

 leafy panicle. Pedicels nodding, 



6. R. ALTissiMus. Wood. (R. verticillata, Mead 1) Peach-leaved Dock. 

 Glabrous, tall, erect; lvs. linear-elliptic, entire, petiolate, tapering to each 



end ; rac. slender, paniculate, somewhat secund, leafless or the lowest verticil 

 axillary ;^5. all $; inTier scp. broad-cordate, one graniferous, one abortively 

 so, a'rd the third naked. — %. Marshy prairies and borders of streams, Indiana! 

 A veiy showy Rumex, 3 — 6f high, slightly branched above. Leaves 3 — 5' by 

 J — 1 ', somewhat acuminate, broadest in the middle. Verticils approximate, 

 pedicels 2 — 3" long. Achenium exactly resembling a beach-nut in form and 

 color. June. (^Nov. sp.) 



* * Inner sepals tootlied. 



7. R. ACUTUs, Dock. 



' L/vs. oblong-cordate, acuminate ; whmis leafy ; valves oblong, subdentate, 

 all o 'them bearing granules.-^ Tj. N. States. Ditches and waste places. Stem 

 2 — 3 "high. Leaves large, the lower ones distinctly cordate, on long petioles. 

 Rac( mes paniculate, composed of dense, leafy, dimidiate verticils. Granules 

 larg<;, red, one upon the back of each valve. May. ^ 



8. P. PALLiDUs. Bw. White Dock. 



Lvs. linear-lanceolate, acute; spikes slender; valves ovate, entire, hardly 

 largirr than the granule. — % Found in salt marshes, Ms. Stems numerous, 

 asce iding. Leaves smooth, acute, petioled, wavy on the margin. Flowers 

 crowded, on short pedicels. Granule large, white, nearly covering the back of 

 each valve. June. 



9. R. MARiTiJius. Golden Dock. » 



Lvs. linear, verv' long, entire, acute at each end; fis. in leafy racemes; 

 tnne- sepals dentate, all graniferous. — %. "Borders of brackish ponds in Mar- 

 tha's Vineyard and Nantucket." Oakcs. Plant a foot or more high. Flowers 

 yelk wish-green, in crowded half-whorls on the branches and main stem above. ^ 



10. R. OETUsiFOLius. Broad-lcavcd Dock. 



St. roughish; radical lvs. ovate, obtuse; valves toothed, one of them prin- 

 cipa ly bearing a granule on the back. — Tj. N. States. A weed as troublesome 

 as tl e first, growing about houses and fields wherever it is least welcome. Stem 

 2 — S.' high, furrowed, branching, leafy. Leaves oblong, cordate, obtuse, cre- 

 nate -wavy ; upper ones narrower and more acute ; root leaves very large, 

 oblo ig, heart-shaped, often with stalk and veins red. Flowers in long, nearly 

 nak( d racemes. Jul)''. ^ 



§2. AcETOSA. Flowers S^'^. Inner sepals roithout granules. 



11. R. AOETOSEt.LA. Field Sorrel. Sheep Sorrel. 



Lvs. lanceolate-hastate; fls. 9 c?- — % ^ common weed, growing in pas- 

 tures and waste grounds throughout the U. S., preferring dry, hard soils. Stem 

 I — If high, leafy. Leaves halbert-shaped, very acid, but pleasant to the taste. 

 Flowering all summer. Flowers small, red or reddish, collected in panicled 

 racemes, the valves destitute of granules. The stamens and styles are on sepa- 

 rate plants. 



Order CXI. PHYTOLACCACE^.— Phytolaccads. 



Herb : nr itndershrjibs, with alternate, exstipulate leavea. 



Fls. racemose, perfect. Sepals 4 — 5, peialoiil. 



Sta. 4—5 and ultemate with the sepals, or indefinite. 



Oua. 1— several-celled. Styles and stlginas e<iual in number to the cells. 



