573 



"Rush-like branches few, stout, flexu- 

 ous, glutinous, sparingly leafy: leaves 

 an inch long: involucral bracts obtuse: 

 corolla-lobes narrowly lanceolate, 

 glabrous. Mohave desert in Calif.; also 

 in adjacent Nevada." Greene, Erythea 

 3:113. 



Bigelovia mohavensis, Greene in Gray Fl 

 138 1884). 



Aster mohavensis OK rev gen 318. 

 C. OSTHOPHYLIiUS P 5:62. 

 C. PnrCFOIJUS P 5:60. 

 C. FIiATTENSIS P 4:42. 

 C. SPECIOSUS Nutt, Am Phil sc tr ns, 

 7:329. B 1:317 as B. graveslens. = B. 

 viscidiflora fide IK. 

 C. TOBTUOSTJS P 5:63. 

 C. VIBENS P 5:61. 



C. VISCIDIFLOBTJS Nutt, Am Phil sc 

 tr. ns. 7:324. = B. viscidiflora fide IK. 

 CHKTSUBUS Pers Syn 1:80 (1805). 

 C. AUREUS Beauv, Agrost 123. = 

 Lamarckia aurea fide B 2:299. 

 C. CYNOSUROIDES Pers Syn 1:80. = 

 Lamarckia aurea fide IK. 

 CHTHAMALIA Decne in DC 8:605 

 (1844). 



C. BIFLORA Decne, as above. = Gon- 

 olobus pubiflorus fide IK. M 1:2 as 

 Vincetoxicum pubiflorum. 

 CXCE1TDIA Adans Fam 2:503 (1763). 

 C. EXALLATA Griseb, Hook Fl 2:69 t 

 157 A. B 1:480 as Erythraea Douglasii. 

 C. QUADRANGULARIS Griseb, Ic. B 1: 

 480 as Microcala q. 



CICHOBIUM L, syst ed 1 (1735). A 1: 

 288 d. 



C. EWDFVIA L, sp pi 813. B 2:460. 

 CTCHORIUM INTYBUS L. 

 L, sp pi 813. A 1:253 d. B 2:460. Z 2: 

 126. Par 304. Parish, Er 3:62, "oc- 

 casional in the streets of SBer." 



Abrams, Fl LA 444, occasional in 

 waste places. 



Genus CICUTA Linnaeus. 

 A 267. dl 271,2 1-11. 

 CICTTTA BOLANDEBI S. Wats. 

 Wat 11 139, A 1 267 d. Da 7. 

 CICUTA MACULATA Linn. 

 Sp pi 256 A 1 27 Bl 260 PI 271, 2 9 

 SBer (Parish 975). Through the U. S. 



CICTJTA OCCZDEZTTAZ.IS Greene. 

 A 1 267 d P 2 7 



Abrams, Fl LA 265. Frequent in 

 marshes toward the coast. 



Genus CtADOTHRIX Xuttall. 

 CHLADOTHRIX LANUGINOSA Nutt. 

 CD! Ark Tex B 2 43 



CHLADOTHRIX OBLONGIFOLIA Nutt 

 Wat 17 376 SCer co 

 CLARKIA Pursh Fl i: tn (1814). 



Erect <a, with brittle sts & alt Ivs; fls 

 showy, in terminal racemes (nodding in 

 the bud); ex tube above ova, obconical 

 or much prolonged & almost filiform, its 

 lobes reflexed in fl or remaining united 

 A- turned to one side; pet 4, p or rose, 



574 



with claws, limb entire or lobed;sta com 

 8, those opp pet oft rudimentary or o; 

 ova 4-celled; sty elongated, stig with 4 

 broad lobes; cap linear or attenuate 

 above, straight or somewhat curved, co- 

 riaceous, somewhat 4-angled & 4-valved; 

 sds num, angled or margined. 

 CLARKIA ELEGANS Dougl. 



Glab or somewhat puberulent, glau, 

 3-15 dm hi, simple or somewhat branch- 

 ing, rather stout & ligid; Ivs broadly 

 ovate to linear, repand-dentate; pet en- 

 tire, the rhomboid limb about = linear 

 clsw; fil all perfect with a densely hairy 

 scale on each side at base; cap 1-2 cm Ig 

 stout A sessile, 4-angled, somewhat 

 curved, oft hairy. 



Genus COLEOGYNE Torrey. 



Cx persistent. 4-parted; lobes large, 

 ovate, imbricated, with a membranace- 

 ous margin, colored within. Pet o. Sta 

 num, inserted upon the base of a tubu- 

 lar torus which includes the ova. Car- 

 pels solitary (rarely 2), glab, oblg: sty 

 lateral, very villous at base; twisted, ex- 

 serted, persistent: stig decurrent: ovule 

 i, ventrally attached opp sty base Fr a 

 coriaceous ak, glab. included. Sd with 

 a rather spongy testa, without albumen: 

 radicle superior. One sp. 

 c. RAMOSISSIMA T, PI Frem 8 t 4. Parry, 

 Am nat 9:270. B 1:174. Mohave, Nev, Ar. 



Genus CO LEOSANTHUS Cass. 



Herbaceous or partly shrubby ^ with 

 opp or alt Ivs A discoid hds of whitish or 

 pink fls in panicles or cymes; inv bracts 

 imbricated in sr, striate; receptacle flat 

 or convex; ak ic-ribbed; pappus a row 

 of num rough or serrate bristles. 



Cass,soc Philom b 67, 1817; diet 10:36. 



Brickellia Elliott, 1824. 

 C. KNAPPIANA Greene, Erythea 1:64. 



Based on Brickellia Knappiana Drew. 

 Pittonia 1:260: "Shrubby and low (per- 

 haps a ft hi), the slender stems with a 

 smooth w bark: branchlets and floral Ivs 

 hispidulous-scabrous, somewhat glutin- 

 ous: Ivs i i long, lanceolate, remotely A 

 coarsely toothed, or subentire. hds num, 



