698 POLTGONACE^. (BUCKWHEAT FAMILY.) 



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

 dense; wJiorls rather indistmci ; 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; Aklier Dagb, and noithward. 



2. R. €ri$i>u§, L. If 1 to 1.5, stem grooved, branching almost 

 from base, ending in a lo?ig, narrow^ leafy panicle. Leaves loavy, the 

 radical loug-petioled, tapering at dase^ lanceolate, .3 to .4 iong, .02 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 — Maj^ to August — Beirvlt ; Lebanon and Ccelesyria to 

 Aintab, and northward. 



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

 gined. Valves ovate to oblong. 



3. R. conglomeratu§, Murr. 2f ,G to 1; stem panic] ed from 

 a little above base, panicle leafy, loith spreading dranches. Leaves entire 

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

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

 acuminate. Whorls distant; pedicels about as long as valves, jointed 

 below middle; valves odiong, .003 long, entire, each tearing 'a wart wore 

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

 mountains, and interior plains. 



4. R. uemoroius, Schrad. 2f . 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-oblong, .05 to .15 

 loner, .03 to .05 broad, the upper lanceolate-linear. Whorls distant; 

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

 obtuse, 003 long, one only bearing a wart — May — Beirut. 



5. R. obtu§ifoliu§, L. 2i! .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 <>ya^e- 

 triangular, .005 long, dentate near base, ending in an oblong, obtuse, entire 

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

 Damascus ; Aintab, and northward, and eastward. 



6. R. Ncpalciisi§, 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; YolYes ovate-orbicidGr, .006 long, reticulate, margin beset with 

 subidate, hooked spines, as long as breadth 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 by a linear-lanceolate leaf ; pedicels short, 

 jointed near the base, nodding; y^\yq% ovate-oblong, .004 long, with 5-G, 

 stiff, straight teeth on cither side, shorter than the diameter of the valve ; 



