Chrysopsis. COMPOSITiE. 255 



inches long. Tlie whole plant remarkable for its thick and soft woolly 

 covering. Heads rather larger than in C. Mariana. Pappus brownish. 

 Achenia marked with 2-5 elevated ribs. 



8. C. scabreLla: pulverulent-scabrous throughout ; stem slout, corymbose- 

 ly branched above, leafy ; leaves oblong-lanceolate, mucronulate, entire, 

 equally somewhat glandular-scabrous on both sides, sessile ; the lower ones 

 narrowed at the base ; heads numerous, in a compound corymb ; peduncles 

 and lanceolate obtuse scales of the involucre puberulent-glandular ; achenia 

 oblong-obovale, silky-villous; exterior pappus nearly setiform. 



In pine woods, Florida, Dr. Leavenworth ! Sept.-Oct. — Stem 2 feet high. 

 Leaves about as large as in C. Mariana, but narrower, rather firm, totally 

 destitute, as is tlie whole plant, of silky or woolly hairs. Corymb fastigiate, 

 rather dense. Heads a little smaller than in C. Mariana. Pappus pale. 



9. C. villosa (Nutt.) : stem villous-pubescent and sparsely hirsute, erect 

 simple or corymbose, very leafy ; leaves canescently strigose on both sides 

 mucronate, entire or rarely with a few sharp scattered teeth, hispidly ciliate 

 towards the base, sessile ; the upper ones linear-oblong or lanceolate, the low- 

 er oblong-spatulate, tapering at the base ; heads solitary or somewhat co- 

 rymbose at the extremity of the branches, on short peduncles ; scales of the 

 broadly campanulate invohicre linear-subulate, strigosely pubescent; ache- 

 nia obovate, villous ; exterior pappus setose-squamellate. — I^utt. ! I. c. ; DC. 

 I. c. Amellus villosus, Pursh, fl. 2. p. 5G4. Diplopappus villosus. Hook. ! 



fl. Bor.-Am. 2. 77. 22, S^- comjJan. to hot. mag. 1. j). 97 ; Hooh. Sf Arn. ! hot. 

 Beeche]/, p. 146. 



Prairies of Illinois ! and the plains of the Missouri! Saskatchawan ! &c. 

 (also in Alabama, Mr. Bncklei/.') extending beyond tlie Rocky Mountains 

 to Oregon, Douglas ! California, Capt. Beechey ! in herh. Hook. July 

 -Sept. — Stems 1-2 feet high. Leaves an inch or more in length, 1-nerved 

 slightly veiny; the rigid pubescence closely appressed. Heads laro-e. 

 Rays about 25. Pappus tawny or nearly white. Appendages of the style 

 subulate-linear, rather obtuse. 



10. C. hispida {Yiook.) : hispid throughout with uniform spreadin a- hairs • 

 branches somewhat corymbose ; leaves oblong-spatulate, narrowed at the 

 base and somewhat petioled ; the radical on long peduncles ; scales of the in- 

 volucre narrowly linear, acute ; achenia obovate-oblong, hairy ; exterior 

 pappus squamellate. — Hook. ! fl. Bor.-Am. 2. p. 22 (under Diplopappus) ; 

 DC. prodr. 7. ^j. 279 ,■ Nutt. ! in trans. Amer. phil. soc. I. c- p. 316. 



On the Saskatchawan, Richardson ! Rocky Mountains, Nultall ! A 



smaller plant than C. villosa, (6-6 inches high), which it considerably re- 

 sembles. Pappus tawny ; the exterior rigid, while. — According to Nuttall, 

 " there are numerous aromatic resinous glands spread over most part of the 

 plant." 



* * Exterior pappus setose, indistinct: achenia oblong, densely silky-villous: plants 

 canescent or silky-villous : leaves entire. (Aplopappus §■? Leucopsis, £>C., at least 

 in part.) 



10. C. mollis (Nutt.) : silky-canescent throughout ; leaves spatulate-ob- 

 long, mostly obtuse ; the upper sessile, the lower tapering to the base, some- 

 what petioled ; heads few, corymbose ; scales of the vilious-canescent in- 

 volucre linear-lanceolate. — Nutt. ! in trans. Amer. phil. soc. I. c. 



Plains of the Platte, with the following; "which it much resembles, but 

 the leaves are more oblong, not in the least scabrous, nor anywhere ciliate ; 

 the stem also softly villous." Nuttall. — Except in the s"ilky appressed 

 pubescence, it closely resembles C. hispida. 



