368 COMPOSlT.i:. CiiRvsopsis. 



2. CiiRYSOPSis Mariana, Nutt. Maryland Chrysopsis. 



Stem clothed with long hairs, erect, rigid, leafy, simple ; leaves oblong or elliptical, mem- 

 branaceous, entire or remotely denticulate, mucronulate, somewhat veiny ; upper ones sessile, 

 the lower narrowed at the base and somewhat petioled ; heads usually few, in a nearly simple 

 corymb ; peduncles and involucre glandular and somewhat viscid ; achenia obovate ; exterior 

 pappus setose-chaffy. — Nutt. gen. 2 p. 151 ; EU.sk. 2. p. 335; Beck, hot. p. 177; DC. 

 prodr. 5. p. 327 ; Torr. <^ Gr. Jl. N. Am. 2. p. 254. Inula Mariana, Linn, sp, 2. p. 1240 ; 

 Michx. Jl. 2. p. 122 ; Pursh,fl. 2. p. 531 ; Torr. compend. p. 291 (§ Chrysopsis). Diplo- 

 pappus Marianas, Hook, compan. to hot. mag. 1. p. 97 ; Darlingt. jl. Cest. p. 475. 



Stem 1-2 feet high, stout and rigid, usually reddish, rather sparsely clothed with fine long 

 hairs, which arc somewhat deciduous. Cauline leaves 1-2 inches long, obtuse or acute, 

 tipped with a minute glandular point, obscurely veiny ; radical ones 2-4 inches long, 

 spatulate-oblong. Heads nearly twice as large as in the preceding species, in a somewhat 

 umbelled corymb ; the pedicels 1-2 inches long, rather slender. Rays 14 - 18. Achenia 

 brownish purple. Pappus tawny ; the outer series bristly, somewhat scaly at the base. 



Sandy fields and woods. Long Island and on the Island of New-York. August - October. 



Subtribe II. BACCHARiDEiE, Less. Heads discoid, never radiate, dioecious or ?nono;cious ; 

 the fertile flowers mostly flliform and truncate : central flowers sterile in the monoecious 

 heads. Receptacle not chaffy. Anthers not caudate at the base. — Leaves alternate. 



13. BACCHARIS. Linn.; Michx. fl. 2. p. 125 ; Endl. gen. 2410. 



PLOUGHMAN'S SPIKENARD. 



[A name given by the Greeks to an aromatic plant of tliis genus, dedicated to Bacchus.] 



Heads many-flowered, dioecious ; the flowers all tubular and similar. Involucre somewhat 

 hemispherical or oblong ; the scales imbricated in several series. Receptacle naked, or 

 rarely somewhat chaffy. Corolla, in the sterile flowers, somewhat dilated, and 5-cleft at 

 the summit ; in the fertile, filiform and somewhat truncate. Anthers exserted in the sterile 

 flowers ; entirely absent in the fertile. Style in the fertile flowers exserted, with the 

 branches smooth ; in the sterile, tipped with an ovate hairy appendage, often more or less 

 abortive. Achenia ribbed or grooved. Pappus capillary ; of the sterile plant in a single 

 series, about the length of the involucre ; of the fertile in one or several series, not thickened 

 at the tip, usually much longer than the involucre. — Shrubs or very rarely herbs, commonly 

 smooth, and resinous or viscous. Leaves mostly alternate, entire or toothed, often decurrent 

 on the branches. Flowers mostly white. 



