ADDENDA. 44? 



Page 168. After 30 S. (Solidago) Oanadensis, insert, 



/3. srabra. Stem and leaves scabrous ; leaves naiTow, rigid, subentire. 



Page 173. After C S. (Silphium) scaberrimum, insert, 



/3. siimile. Leaves nearly all sessile, lance-oblong to ovate. (S. Radula N.) 111. 



Page 180. After 5 B. (Bidens) connata, insert, 



/3. prtiolata. Leaves more or Ic^s petiolate. (B. petiolata N.) 111. (Mr. \Vo'f.) 

 Page 283. After 10 P. (Polygonum) Careyi, insert, 



lOa P. persicarioides K. Glabrous, 2 4f : stip. ciliate ; Ivs. lin.-lanccolatc, sub- 

 sessile, spotted, not acrid ; spikes linear, erect, pale-purple ; eta. ti 8 ; styles 3-cleft ; 

 ach. 3-angled, shining. Low ground. 111. (Mr. Wolf.) New to our flora. 



Page 346. At bottom insert, 



22a MYRSIPHYLLUM ASPARAGOIDES. A delicate vine, twining 

 and climbing, from S. Africa. Cult. Branches very slender and smooth. Lvs. 1' or more, 

 ovate, pointed, thin, and polished. Fed. in pairs, with an empty bract-like one. Fls. simi- 

 lar to those of Asparagus, (5-parted, white. Filaments flattened. Popularly called Smilax. 



Page 405. After E. (Elymus) Virginicus, ft. arcuatus, add, 



y. iillo*... Flowers villouB-pubeecent (E. villosus Muhl.) 111. (Mr. Wolf.) 



ORDER LXXX. OLACACE^E. 



Trees or shrubs chiefly tropical, with alternate, ex stipulate, petiolate, 

 entire leaves, regular, hypogynous flowers, and drupe-like fruit ; repre- 

 sented in our limits by the following genus only. 



XIM 3NIA; Plum. Calyx small, 4-toothed. Petals 4, woolly within, I 

 barely united at the base. Stam. 8. Style 1, Ovary 4-celled, with several 

 ovules, but forming a 1 seeded drupe. ^ Thorny. Flowers axillary, 

 single or in small corymbs. 



X. Americana L. Leaves smooth, coriaceous, oval or oblong, obtuse; peduncles several- 

 flowered, shorter than the leaves; petals oblanceolate, thick, spreading above, 4 5" 

 long. Fla. from Picolata (Mr. Fry) and S. Fls. yellow, fragrant. Drupe as large as a 

 plum, yellow, well-flavored. Thorns an inch. 



Page 76, under Celastreceae, insert, 



3. PACHYSTIMA, Raf. Petals and stam. 4, inserted on the throat of 

 the 4-lobed calyx. Style very short, expanded at base into the disk which 

 covers the ovary and lines the calyx tube. Caps, oval, 2-celled, seeds 2 

 4, inclosed in a white dissected aril. Low shrubs, with opposite, crowded. 

 Rhort-petioled, evergreen leaves, and minute axillary flowers. 

 P. inyrsiiiites Raf. /3 Canbyi (Gray). Stems and branches creeping, ascending, 



bark blackish ; Ivs. oblong and linear-oblong, obtuse, with a few minute teeth ; capg. 



obtuse. Mountain bogs, Wytheville, Va. (H. Sltriver.) Sterna & 15'. Lvs. 6 9", 



margins revolute. 



Page 234, after R. (Ruellia) strepens L., insert, 



/3. micrantha (Eng. and Gr.). Flowers crowded in theaxilt=, with corolla reduced 

 to a slender tube with an obsolete lip-shaped border, or quite apetalous, fertil- 

 ized in the bud. In ponds, Mount Cannel, 111. (Dr. Schneck.) 



