BOTANY. 



103 



I 



1 



4 



%i 



Bigdow, The accessory nerves are wanting in the disk-corollas of Dr. Blgelow's speciraens, 

 and the rays are narrower and entire, not three-toothed as in Gregg's, 



Senecio multilobatus, Torr. & Gray^ in PL FendL p. 109. Monterey, California, May; Parry, 

 Seneoio Cobonopus, Nutt.; Torr. d Gray^ Fl. 2, p. 437. San Luis Key, February^ on dry 



hill sides ; Parry. 



Senecio Tampicaistus, do. Prodr. G^p. 42T. On the Limpio, Smith's Run, Rock Creek, White 



Rock Mountains, near the Rio Grrande, etc.; Bigelmu^ Wright^ Parry, 



Senecio lobatus, Pers. Low hanks or beds of rivers, from Laredo to Frontera and the Santa 



Maria in Chihuahua. 



Sexecio Riddelltt, Torr. & Gray, FL 2, p. 444. On the Lower Rio Grande ; SchoiL 

 Senecio longilobus, BenOi. PL Hartia. p, 18. Gravelly hills, Arroyas, etc., on the Rio 



Grande above Presidio, to Chihuahua and Sonora. In very various forms. 



Senecio filifoliuSj Ivrctt,; Torr, & Gray^ L c. On the Leona and Nueces, Texas. 

 Senecio aureus, Linn., var. borealis, Torr. & Gray, L c. Organ Mountains ; Wright, etc. 

 Senecio canus, Hook., var. pygm^a, foliis angnstissimis. Cobre, on mountains and hill t>ide8 ; 



Tlmrher, Bigelow. 



Senecio fastigiatcs, NutL; Gray, PL Wright. 2, p. 99. Cobre, Mimbres, etc., New Mexico ; 



Wright, Bigeloiv, etc. 



Senecio Pahryi (sp. nov.): herhaceus, viscoso-pubescens; caule striato; rauiis oligocephalis; 

 foliis argute iniequaliter dentatis, caulinis spathulatis inferne longe attenuatis basi dilatata 

 auriculato-amplexantibus, ramealibus summis lanceolatis ; bracteis setaceo-subulatis ; capitulis 

 breviter pedunculatis ; involucri (semi2>ollicari) paucibracteolati squamis acuminatis ; ligulis 

 12-15 ; acheniis sericeo-cinereis — In live-oak groves, 150 miles above the mouth of the Pecos, 

 on the Mexican side of the Rio Grande, November ; Parry. Root not seen. Stem, etc., slightly 

 floccose when young Cauline leaves 2 inches or more in length. Ligules oblong, yellow, half 



an inch long. 



Cacalia decomposita, Gray, PL Wright. 2, p. 99. Mountains east of Santa Cruz, Sonora; 



Wright. 

 Centaurea Americana, Nutt. Sandy soil etc. from the Lower Rio Grande to Chihuahua. C. 



Mexicana, DG., is the same thing. 



Ctrsium Wrightii, Gray, PL Wright. 2, p. 101. Around springs, San Bernardino, New 



Mexico ; Wtight. Comanche springs ; Bigeloio, 



r 



CiRSiUM ViRGiNiANUM, JHchx. var. Low grounds, Escondido springs ; Wright. Rio Grande ; 

 Schotty etc. 



CiRSiuM UNDULATUM, Nutt ; Gray, PL Wright. L c. W. Texas to the Limpio, and to Sonora, 

 etc. In various forms, probably including C, ochrocentrum. Gray, PL FendL j^- HO, <& PL, 

 Wright, 2, p. 101. 



\ \ CiRSiUM Neo-Mexicanum, Gray, PL Wright. 2, p. 101. Organ mountains and Cobre, New 



Mexico ; Wright, Bigeloio. Cooke's spring ; Thurber. 



CiRSiUM Grahamii, Gray, PL Wright. 2, p. 102. In swamps, between the Sonoita and San 

 Pedro, Sonora ; Wright, Thurber. 



CiRSiUM CouLTERi, Harv. d: Gray, PL FendL p. 110? Monterey, California; Parry. 



DC 



Prodr. 7, p. 22. Mountain pass, near Parras, Thurber. This is 

 No. 1391 and 2358 of Berlandier's collection, who records its vernacular name as ^^ Ocotillo." 

 Trtxis frutescens, p. Broivne; DO. Prodr. 7, p. C8'; var. angustifolia, et foliis sericeo- 





r 



