698 POLYGONACE^. (BUCKWHEAT FAMILY.) 



most oblong to lanceolate, sessile, cuneate at base. Racemes sessile, 

 dense; \oTiorls rather indistinct ; pedicels about as long as valves, jointed 

 below middle; valves .006 long, cordate - ovate, obtuse, reticulate, 

 entire or repand-denticulate, one bearing a small, prominent wart — 

 June and July — Subalpine Lebanon; Akher Dagh, and northward. 



2. R, crispu§, L. If 1 to 1.5, stem grooved, branching almost 

 from base, ending in a long, narrow^ leafy panicle. Leavas wavy, the 

 radical long-petioled, tajjering at hase, lanceolate, .2 to .4 long, .03 to 

 .05 broad, acutish or obtuse, the upper and floral linear-lanceolate to 

 linear. Whorls approximated; pedicels jointed below middle; valves 

 .003 long, round-ovate, somewhat cordate, the outer or all bearing a 

 small wart — May to August — Beirvlt ; Lebanon and Ccelesyria to 

 Aintgib, and northward, 



Var. elongatus, Boiss. Leaves narrower, scarcely wavy-mar- 

 gined. Valves ovate to obloug. 



3. R. coiiglomeraUi§, Murr. If ,6 to 1; stem panicled from 

 a little above base, panicle leafy, icith spreading branches. Leaves entire 

 or repand, the lower petioled, oblong to oblong-lanceoh.te, .1 to .2 

 long, round or subcordate at base, the upper sessile, lanceolate to linear, 

 acuminate. Whorls distant; pedicels about as long as vr.lves, jointed 

 below middle; valves ollong^ .002 long, entire, each hearing ■% loartmore 

 than half as long as itself — Summer — Wet fields; coast and lower 

 mountains, and interior plains. 



4. R. nemorosus, Schrad. If . 6 to 1 ; stem grooved, slender, 

 erect, ending above in a panicle ; branches of panicle leafy only at base, 

 or leafless. Leaves entire, the lower petioled, cordate-oblonc;, .05 to .15 

 long, .02 to .05 broad, the upper lanceolate-linear. Whorls distant; 

 pedicels shorter than valves, jointed near base; valves linear-oblong, " 

 obtuse, 002 long, one only hearing a wart — May — Beirut. 



5. R. obtusifoliu§, L. If .5 to 1, panicled from near base, naked 

 above. Leaves obsoletely repand-lobed, the lower ovate-cordate to 

 oblong, obtuse, the upper lanceolate, tapering at both ends. Whorls 

 rather remote; pedicels elongated, jointed below middle; valves ovate- 

 triangular, .005 long, dentate near hase, ending in an ohlong, oUuse, entire 

 apex, all icarty — Summer — Roadsides; Gaza; Lebanon; Haur^in'; 

 Damascus ; Ainttib, and northward, and eastward. 



6. R. Xcpaleii§i§, Spreng. If 1 or more; root-fibres napiform, 

 thick. Leaves oblong, the lower cordate at base, the upper cuneate- 

 lanceolate, nearly sessile. Panicle few-branched, open ; racemes nearly 

 naked; whorls remote ; pedicels jointed below. middle, nearly as long 

 as calyx; ^^2i\wQS ovate-orhicular, .006 long, reticulate, margin heset with 

 sidndate, hooTced spines, as long as hreadth of valve, one or more of the 

 valves warty — May and June — Middle and upper Lebanon. 



7. R. pulclier, L. (D .5 to 1, glabrous or rough; stem erect, 

 paniculate. Leaves small, the lower petioled, subcordate at base, ovate 

 to oblong or fiddle-shaped, the upper lanceolate. Racemes open, elonga- 

 ted; whorls remote, subtended hy a linear-lanceolate leaf ; pedicels short, 

 jointed near the base, nodding; ^dXyQ^ ovate-oblong, .004 long, with 5-6, 

 stiff-, straight teeth on either side, sJiorter than the diameter of the valve ; 



