46 ACANTHUS. 



flat ciliate, 2 pistillate flowers on the peduncle 

 of the staminate flower. — In Louisiana, stem 

 2 feet, flowers axillary only 3, authers almost 

 in a spike. No figure. 

 8. A. FRUTicuLosA Raf. fl. Louis. 368. Shrub- 

 by, branches divaricate, rufous tomentose, 

 leaves petiolate ovate dentate : involucres invo- 

 lute unequally dentate, a single pistilate and 

 staminate flowers. — In Louisiana, stem 2 feet, 

 with many slender branches, flowers axillary 

 geminate. No figure. 



These two last species neglected by our Bo- 

 tanists, are very distinct and approximate to 

 the tropical species. Linneus states his A, 

 virginica to grow in Jamaica and Ceylon, 

 quoting the figures of Brown and Plukenet ; 

 they must apply to other kinds, which may be 

 called 



9. A. jAMAicENSis Raf. Fruticose, leaves 

 ovate-lanceolate longer than petiols, serrate, 

 scabrous: Spikes axillary, involucre multifid 

 (Lin.) but cordate crenate (Brown) — In Ja- 

 maica and perhaps in Florida, shrub 4 to 5 

 feet high. See Brown, Lunan and Jamaica au- 

 thors. Very different from all ours, perhaps 2 

 Sp.there. 



10. A. ZEYLANICA Raf. In Ceylon, certainly 

 more distinct yet, but I have no materials at 

 hand on it. 



ACANTHUS of Lin. Genus foreign to N. 

 America, the following doubtful species may be 

 a Pedicularis, 



A. RUBENS, Raf fl. Louis. 104. Leaves 

 inerme soft, clasping, broadly sinuate. — In 

 Louisiana near New Orleans ! A, mollis Ro- 

 bin. Stem 3 to 4 feet, flowers pale red. 



Var Minor smaller, leaves deeper sinuate, 

 flowers remote 



