ADDENDA 



Page 142, next after R. abortivcs, insert, 



R. RHOMBOiDEUs. Goldie. 



Hirsutely pubescent ; st. much branched from the base ; rod. Ivs. entire, 

 rhomboid-ovate, crenate-dentate, on long petioles, cmdine Ivs. palmate, floral 

 deeply laciniate; sep. spreading; hds. of carpels (large) globose; ach. smooth, 

 with very short beaks. — Wise. Laphavil and Can. W. A low, bushy, hairy 

 species, 6—10' high. Root leaves about 1' by §', often roundish or elliptical, 

 the petioles about 2' long. Segments of the stem leaves linear-oblong, obtuse 

 oftener entire. Petals yellow, oblong-obovate, exceeding the calyx. 



Page 166, next after A. laevigata, insert, 



Arabis Patens. Sullivant, 



Erect, everywhere clothed with rigid, simple or forked hairs ; radical Ivs. 

 rosulate, petiolate, middle ones oblong-ovate, coarsely dentate, auriculate-am- 

 plexicaul, upper ones linear-oblong, subentire ; pedicels longer than the rather 

 large white flowers ; siliques spreading and curved upwards, beaked with the 

 conspicuous style.— Rocky banks of the Scioto river, Columbus, O., Sullivant. 



Page 378, next after P. rotundifolia, insert, 

 Pyrola uliginosa. Torr. & Gray. 



Lvs. nearly round, sometimes inclining to ovate, coriaceous, longer than 

 the petiole, decurrent, with a few prominent veins; scape somewhat angular, 

 with lanceolate bracts ; rac. 8— 12-flowered ; cat. \ the length of the petals ; pet. 

 ovate-oblong; stam. ascending; fl.1. smooth; ova. depressed; sty. declined, cla- 

 vate.— Sphagnous swamps, Galen, N. Y., Sartioell. Scape 4—8' high, many- 

 flowered. Petals reddish-purple. Stigma toothed. June. (Dr. Sart. comm.) 

 Page 397, next after V. (Verbascum) Lychnitis, insert, 

 /?. hybrida. St. simple, erect, tomentose ; lvs. ovate-oblong, subcordate, woolly 

 on both surfaces ; fls. in a terminal, somewhat leafy spike, yellow.— Rome, 

 N. Y., Vasey. Apparently a hybrid between V. lychnitis and V. Thapsus. 

 Page 420, next after P. pilosum, insert, 

 Pycnanthemum Torreyi. Benth, 



St. pubescent, .slender, moderately branched ; lvs. linear-lanceolate, smooth- 

 ish, acute, denticulate, margin ciliate' under surface downy; cymose heads con- 

 tracted hemispherical ; cat. with lanceolate acuminate teeth with bristly hairs 

 at the summit; stew., exserted.— York Island, Careij. Stem purplish, strict 

 about 2f high. Leaves 2—3' by 4". Corolla two-lipped, white. Ovary naked 

 at the summit. Aug. (£>/-. Sarticell comm.) 



Page 474, next after P. mite, insert, 



Polyonum Careyi. Olney. 



St. erect, hirsute, much branched ; lvs. lanceolate, with scattered and ap- 

 pressed hairs'; slip, scarious, tubular, truncate, hairy; spikes axillary and ter- 

 minal on very long, nodding peduncles, thickly beset Mith glandular hairs ; 

 stam. shorter than perianth: 5/?/. 2; ach. orbicular-ovate, mucronate.— Swamps, 

 N H. ' to R. I. Olncy. Plant 3— 5f high. Leaves 3—6' by i— 1', midvein 

 and margins hairy. Calyx greenish-purple tinged with white, small. Resem- 

 bles P. Pennsylvanicum. Jl. 



Page 571, next after S. Olmyi, insert, 



S. Torreyi. Olney. (S. mucronatus. Torr. N. Y. St. Fl. not Linn.) 



St triquetrous, the sides concave and nearly equal, the base leafy ; spikes 

 ^2r—4 .sessile oblong, lanceolate, acute; criumes ovate, subcoriaceous, mucro- 

 nate 'smooth; aiith. acme, not fringed at apex; bristks longer than the ache- 

 nium; sly. 3-cleft; ach. angular, convex externally, acuminate.— Mass., R. L, 

 N. Y. 



