ADDENDA. 447 



Page 1G8. After '00 S. (Solidago) Canadensia, Insert, 



ft. ncabra. Stem and leaves scabrous ; leaves narrow, rigid, subentlre. 

 Page 173. After 6 S. (Silpliium) scaberrimum, insert, 



ft. st**He. Leaves nearly all sessile, lance-oblong to ovate. (S. Kadula N.) El. 

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



ft. petiolata. Leaves more or le*s petiolate. (B. petiolata N.) HI. (Jfr. Wolf.) 

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



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

 sessile, spotted, not acrid ; spikes linear, erect, pale-purple ; eta. (5 8 ; styles 3-cleft ; 

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



Page 846. At bottom insert, 



22a MYRSIPHYLLUM ASPARAGOIDES. A delicate vine, twining 

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

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

 lar to those of Asparagus, 6-parted, white. Filaments flattened. Popularly called Smilax. 



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



y.tilli>git*. Flowers vinous-pubescent (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. 



XIMENIA, Plum. Calyx small, 4-toothed. Petals 4, woolly within, 

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

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

 single or in small corymbs. 



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

 tiowered, shorter than the Iwives ; petals oblanceolate, thick, spreading above. 4 5" 

 long. Fla. from Picolata (Mr. Fry) and 8. 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-cellecl, seeds 2 

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

 ehort-petiolcd, evergreen leaves, and minute axillary flowers. 

 P. inyrsiniles Raf. ft Caubyi (Gray). Stems and branches creeping, ascending, 



bark blackish ; Ivs. oblong ami linear-oblong, obtuse, with a few minute teeth ; caps. 



obtuse. Mountain bogs, Wytheville, Va. (H. Shriver.) Sterna 816'. Lvs. 60", 



margins revulute. 



Page 234, after R. (Ruelliu) strcpcns L., insert, 



j3. tnicrantha (Eiig. and Gr.). Flowers crowded in theaxil?, with corolla reduced 

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

 ized in the bud. In ponds, "Mount Carmel, 111. (Dr. Schnfck.} 



