366 GERANIACE.E. Oxalis. 



the type. Some Floridan specimens for the present referred liere {Nash, no. 118, Palmer, 

 no. 67) have very slender capsules. 



b. Producing horizontal perennial rhizomes in summer : inflorescence dichotomously cymose 

 in luxuriant specimens ; pedicels not refracted. 



O. Stricta L. Annually renewed from the slender rhizomes : stems slender, solitary, erect, 

 a span to a foot or more high, somewhat branched above, softly villous and a little strigose, or 

 ghibrescent': leaflets 3 to 8 lines long and mostly broader ; slender elongated common petioles 

 without evident stipules : flowers 3 to 4 lines long : pedicels slender, short, divergent : sepals 

 lance-ovate, obtuse : petals subentire, scarcely twice as long as the calyx : styles generally 

 a little longer than the stamens and sepals. — Spec. i. 435 {Oxys s. tnfulium luteum curnicu- 

 latum Virginiaiium, etc., Morison, Plant. Hist. ii. sec. 2, t. 17, f. 3) ; Jacq. Oxal. 29, t. 4 (but 

 pedicels shown :is refracted) ; Ell. Sk. i. .'J26; Zucc. Oxal. 34, & Naclitr. 64 ; Hook. Fl. Bor.- 

 Am. i. 118; Torr. & Gray, Fl. i. 212; Gray, Gen. 111. ii. 112, t. 144, f. 7-11. 0. corniculata, 

 var. stricta, Sav. in Lam." Diet. iv. 683 ; Trelease, 1. c. 88. 70. Jiorida, Salisb. Prodr. 322. 

 0. ambigua, Salisb. Trans. Linn. Soc. ii. 242, t. 23, f. 4. 0. ci/mosa, Small, Bnll. Torr. 

 Club, xxiii. 267. — New Brunswick to South Dakota, Colorado, Indian Territory, and South 

 Carolina ; fl. some three weeks later than the preceding. (Old World.) 

 ++ ++ Flowers larger, heterogone-trimorplious. 



O. recurva, Elliott. A span high, at length with very slender ])rostrate stems a foot or more 

 long, with greatly elongated internodes, from a seemingly jxTcnnial root, usually villous: 

 leaflets 3 to 7 lines long, deeply notched; stipules small, adnate, somewhat rounded at top: 

 flowers 5 to 6 lines long, usually in pairs, the very slender elongated pedicels a little arcuate, 

 often bent near the capsules or refracted, occasionally bracted about the middle: sepals 

 lanceolate, rather acute : petals more than twice as long as the calyx : styles decidedly 

 longer than the .sepals in the long-styled form. — Sk. i. 526 (the short-styled form) ; Small, 

 Bull. Torr. Club, xxi. 474, t. 222. W. Lyoni, Pursh, Fl. i. 322. ?0. cesi>itosa, Raf. New 

 Fl. ii. 27. O. curnicii.'ala, var (?) macrantha, Trelease, 1. c. 88, t. 11, f. 5, as to the eastern 

 form. 0. macrantha, Small, Bull. Torr. Club, xxiii. 268. — Pennsylvania to E. Texas and 

 Florida. Intermediate in a.spect between 0. stricta and 0. corniculata. 



O. pumila, Nutt. Perennial, from at length woody creeping rootstocks: stems single or 

 somewhat approximated, a span or two high, slender, more or less villous : leaflets 4 to 8 

 lines long and somewhat broader, without stipules : flowers 6 to 9 lines long, solitary or 

 usually in pairs, briglit yellow ; pedicels very slender, elongated, spreading or somewhat re- 

 fracted in fruit : sepals oblong, rather obtuse : petals about tliree times as long as the calyx : 

 styles or longest stamens twice as long as the sepals : capsule usually little exceeding the 

 sepals. — Nutt. in Torr. & Gray, Fl. i. 212, note. 0. Suksdorjii, Trelease, 1. c. 89, & Trans. 

 St. Louis Acad. v. 288 ; Eliot, Trans. St. Louis Acad. v. 278, f. 1 ; Small, Bull. Torr. Club, 

 xxiii. 456. 0. corniculata, var. (1) macrantha, Trelease, Mem. Bo.ston Soc. Nat. Hist. iv. 88, 

 as to Califoruian specimens. — Oregon to Central California. The west-coast representative 

 of the preceding: both comparable with a part of what has been referred to 0. microphi/lln, 

 Poir. in Australia. 0. pilosa, Nutt. in Torr. & Gray, Fl. i. 212 ; Small, Bull. Torr. Club, 

 xxiii. 457, of California from the Sacramento to Santa Barbara, if separable, differs cliiefly 

 in the stouter subterranean parts and the capsule 7 to 8 lines long. 



O. grandis, Small. Perennial by slender horizontal rootstocks that are villous toward 

 the base : stems single, little branched, at length 2 feet high, mostly stout and soft-villous 

 throughout : leaflets about an inch long, often very cuneate and shallow-notched, brown- 

 margined ; no stipules : flowers 8 to 9 lines long, in few-flowered umbels, or cymose, their 

 slender pedicels rather short, sometimes refracted in fruit : sepals ovate-oblong, obtuse : 

 petals about three times as long as the calyx, bright yellow, ])rown-striate within at base : 

 styles or longest stamens twice as long as the sepals.— Bull. Torr. Club, xxi. 475, t. 223. 

 0. recurva, Trelease, 1. c. 89, & Trans. St. Louis Acad. v. 289, not Ell. — Pennsylvania to 

 S. Missouri and North Carolina. A trimorphous species long confoundei\ with 0. stricta. 



* * Acaulescent, perennial by a slender rootstock covered above with imbricated dilated 

 fleshy leaf-bases : flowers white or pinkish, mostly red-veined, homogone : leaves palmately 

 trifoliolate. 



