496 ONAGRACE^. CEnotheka. 



13. CE. s27cdosa (Nutt.) : perennial, piiberulent ; stems erect or ascend- 

 ing, flexuoiis, olten branching; leaves lanceolate or oblong-lanceolate, atten- 

 uate at the b;ise; the radical and lower caulinc ones pinnatifid, or pinnalely 

 toothed towards tiie base, petioled ; the uppermost denticulate or remotely 

 toothed; Howers (large) in a loose at length elongated sj)ike ; tube of the 

 calyx longer than tlie ovary, but shorter than tlie conspicuously acuminate 

 scnnents ; capsules slightly pedicelled, thick and almost ligneous, clavate- 

 obovatc, rather acute, strongly 8-ribbed, the alternate ribs cristate. — Nutt. ! 

 in jour. acad. Phllad. 2.p'. 119 ; Hook. e.rot.Jl. t. 80 ; DC! j'rodr. 3. p. 60. 

 Xylopleurum Nuttallii, Drummondii, and obtusifolium, Spach .' Onagr. 

 p. 51. 



a. puberulent or canescently pubescent ; bracts shorter than the slightly 

 pedicelled capsules. — GE. speciosa, Nutt.! I.e.; Don, in Brit. Ji. gard. ser. 2. 

 t. 253 ; Hook. hot. mag. t. 3189/ Spach! I. c. 



p. bracts foliaceous, the lowermost as long as the tube of tlie calyx ; cap- 

 sules slightly pedicelled. 



y. minutely puberulent ; bracts mostly foliaceous, shorter than the tube of 

 the calvK ; pedicels in the lower flowers as long as the capsules. 



Eed' Iliver, Arkansas, Nidtall ! Dr. Pitcher! Texas, Drummoid ! — 

 Stem often a little woody at the base, varying from 6 inches to 2-3 feet high. 

 Petals very large and broad, slightly obcordate, " yellow at the base, with 

 several yellowish-green veins." {Hook.) Stamens a little shorter than the 

 petals. Style longer than the stamens : stigmas linear-filifonn. Alternate 

 ribs of the capsule almost winged. — The leaves vary considerably in the de- 

 gree of division, as well as in the pubescence : they exhibit round pellucid 

 dots under the microscope. The size of the bracts and the length of the pe- 

 dicels are also variable. 



t t Flowers (scarcely odorous) erect before their expansion, diurnal, yellow, un- 

 changed in fading. (Knciffia, Spach.) 



] 14. CE. fruticosa (Linn.) : perennial, hairy or almost glabrous ; stem sim- 

 ' pie or branching above (often purplish), erect; leaves lanceolate or obloug- 

 lanceolate, re])andly denticulate ; cor^^ml) peduncled, naked below, elongated 

 in fruit ; tube of the calyx uuich longer than the ovary ; petals (large) broad- 

 ly obcordate, longer than the acuminate calyx segments and stamens ; cap- 

 sules oblong-clavate, 4-winged, with intermediate ribs, longer than the pedi- 

 cels.— Lmra. .' spec. l._25. 456 ; Nutt. gen. 1. p. 247 ; Torr. ! ft. 1. p. 389 ; 

 DC. ! I. c. ; Hook.! ft. Bor.-Am. 1. j). 212, <^- lot. mag. fol. 3548, (excl. 

 y. & i.) CE. hybrida, Miclix. ! Ji. 1. p. 225. Kneiffia suffruticosa & flori- 

 bunda, Spach! I. c. 



p. ambigua: corymbs peduncled, sometimes leafy; leaves (membranace- 

 ous) oblong-lanceolate ; tube of the calyx longer than the segments ; petals 

 (smaller) longer than broad.— Nutt. ! I. c. ; Torr. ! I. c. ; Hook. ! hot. mag. 

 i. 3548. CE.^ambigua, Spreng. syst. 2. p. 229 ; DC. I. c. CE. Canadensis, 

 Gotdie, in Edinh. phil. jour, fide Hook. 



y. phijUopus : corymbs sessile, leafy. Hook. I. c. CE. fruticosa. Bat. mag. 

 I. 332.,' fide Hook. CE. serotina, Don, in Brit. fi. gard. {ser. 2 ) t. 184 ; 

 Lindl! hot.reg. t. 1840. 



,5. incana: leaves elliptical-lanceolate, canescently hairy; corymbs few- 

 flowered. — Hook.! I. c. CE. incana, Nvtt. I. c. 



e. hirsuta: clothed with ^^llous-hirsute hairs; peduncles 1 -few- flowered: 

 petals longer than broad. — Nutt.! mss. CE. pilosella, Baf. ann. nat. p. 15. 



In dry sterile soil, Canada? New York! and Ohio! to Florida and Louisi- 

 ana! June-Aug. — Stem (1-3 feet high, rigid but not shrubby), leaves, ^c, 

 varying exceedingly in the degree of pubescence, sometimes almost glabrous. 



