FLex.mon. 15. POLYGON/E. 38. Acetosa. 277 



3. Acetosa scutata. Shielded sorrel. 



Leaves heartshape, hastate ; barbs reflex, diverging ; stems 

 roundish ; flowers hermaphrodite, valves not cut. 



Oxalis Franca sen Romaun, Gcr. em. 397,4. 



Jlumex scutatus, Lin. S. P. 481. 



Roman sorrel. French sorrel. Round-leaved sorrel. 



Stony, mountainous places ; perennial ; June and July : 

 also cultivated. 



Stem and leaves glaucous. 



VII. 39. OXYRIA. Hill, z^/^' Welsh-sorrel. 



Ferigo7imm 4-parted ; 2 inner lobes larger, erect, adnate 

 to the seed, not granuliferous at bottom ; 2 outer smaller, 

 reflexed ; stojmens 6 ; styles 2, distant ; stigmata 2, pencil- 

 shape ; thecidium rhomboidal, 2 outer angles winged ; cor- 

 ciilium central, straight; cotyledones linear, incumbent; ra- 

 dicle above. — Root perennial; leaves mostly radical, pe- 

 tiolate; flowers in bundles, panicled, hermaphrodite. 



Oxyria rotnndifolia. Round-leaved Welsh-sorrel. 



Leaves orbiculate, retuse or nicked; valves oval, noi 

 toothed. 



Acetosa rotundifolia hortensis, Raii Cat. Cant. 1,6. 

 Lapathum q. Acetosa rotundifolia rei)ens Eboracensis folio in medio 

 deliquium patieute Morison, Raii Syn. 143, 14. 



Acetosa Cambro-Britannica montana, Park. 745, 



Ruraex digynus, Lin. S. P. 480, 



Acetosa digyna, Miller Diet. 



Lapathum digynum, Lamarck PL Fr. 3, 6. 



Alpine places ; perennial ; June. 



Stem a foot high, upright, rather naked ; leaves pale 

 green, ribbed. 



Fam. XVI. 16. CHENOPODE^. De Candolle. 



Atriplices, Jussieu. 

 Perigonium free, 1 -leafed, deeply divided, persisting, 

 rarely tubular at bottom ; cestivation imbricate ; stamens 

 inserted at the base of the perigonium, opposite the lobes, 

 and as niany or fewer than the lobes ; ovary 1, free, one- 

 seeded; ovule affixed at the base, upright or inverted ; 5/7//e 

 divided, 2 or 4-cut ; stigmata undivided ; utriculus mem- 

 branaceous, rarely fleshy ; eynhryo curved, or spiral, round 

 the farinaceous perisperm ; radicle at the hilum, above or 

 6 



