Vox,. II.] 



WOOD-SORREL FAMILY. 



6. Oxalis recurva Ell. Large-flowered 

 Wood-sorrel . ( Fig. 2255.) 



Oxalis recurva EH. Bot. S. C. & Ga. i: 526. 1821. 



Perennial by horizontal rootstocks, pilose or 

 villous. Stem erect, or decumbent, 5 / -i2 / tall, 

 often woody at the base; leavesX / ~ I X / broad; 

 leaflets sharply notched; petioles i^'-sX' 

 long, pubescent like the stem, slightly dilated 

 at the base; flowers bright yellow, in umbel- 

 like cymes, i or 2 opening at a time; pedicels 

 villous, about as long as the flowers, erect, or 

 spreading; sepals oblong, about 3" long, ob- 

 tuse, nearly erect; petals about 7" long, 

 slightly notched; capsule columnar, 6 // long, 

 abruptly narrowed at the summit; seeds obo- 

 void, %" long, with broken transverse ridges. 



In rocky or sandy places, Missouri to South 

 Carolina and Alabama. April-Aug. 



7. Oxalis cymosa Small. Tall Yel- 

 low Wood-sorrel. (Fig. 2256.) 



Oxalis cymosa Small, Bull. Torr. Club, 23: 267. 



1896. 



Annual or perennial, normally tall, bright 

 green. Stem usually erect, 6'-4 high, branch- 

 ed above, often villous, reddish or brown; 

 leaves <)"-i8" broad, on petioles i}4'-3' long; 

 leaflets broader than long, sharply notched; 

 petiole-bases scarcely dilated ; flowers yellow, 

 in dichotomous cymes; pedicels erect, or 

 ascending, 3 // -4 // long, more or less villous; 

 sepals lanceolate or narrowly elliptic, 2 // ~3 // 

 long, finally spreading; petals obtuse, or 

 emarginate, 4 // -5 // long; capsule slender, 

 columnar, s"-?" long, gradually narrowed 

 to the summit; seeds obovoid-oblong, % /f 

 long, with nearly continuous ridges. 



In woods and fields, Ontario to Michigan, 

 Florida, Nebraska and Texas. May-Oct. 



8. Oxalis grandis Small. Great Yellow 

 Wood-sorrel. (Fig. 2257.) 



Oxalis recurva Trel. Mem. Bost. Soc. Nat. Hist. 4: 



89. 1888. Not Ell. 1821. 

 Oxalis grandis Small, Bull. Torr. Club, 21: 474. 1894. 



Annual or biennial, stout, glabrate below or vil- 

 lous, bright green. Stem erect, i-4 tall, simple, 

 or nearly so; leaves i> / -3 / broad; leaflets usually 

 unequal, often with a brown margin, more or less 

 ciliate; petioles villous, hardly dilated at the base, 

 2 / -6 / long; flowers yellow, in dichotomous cymes; 

 pedicles 5 // -7 // long, erect, or spreading; sepals 

 unequal ; ovate.or oblong, 1"-$" long, often ciliate 

 at the apex ; petals rounded at the apex, 6 // -S^ / 

 long; capsule stout, ovoid, or ovoid- oblong, 3 /x - 

 5" long, seeds ovoid or obovoid, \" long, with con- 

 spicuous broken transverse ridges. 



On river banks, Pennsylvania to Illinois, North 

 Carolina and Tennessee. May-Aug. 



