CATALOGUE. 171 



perfect specimens may have enabled those authors to place P. filipes under 

 P. Taliscana with certainty. Dr. Gray, Fl. Cal. 1, p. 400, still considers 

 them distinct. — Southern Arizona (539) In one specimen, I find three 

 awns to the disk-flowers, which alternate with three scales, each half as 

 long as the achenium. 



Pectis angustifolia, Torr. — Low, much branched, annual, 1-6' high ; 

 leaves slightly connate and bristle-ciliate at base, bearing many oval glands, 

 as also do the scales of the involucre ; pappus in both ray- and disk-flowers 

 a mere crown of small and somewhat dentate scales, or in some of the outer 

 flowers of the head of one or two awns, when it is P. fastigiata, Gray (PI. 

 Fendl. p. 62) ; achenia a little hairy. — A very much dwarfed form of the 

 species, not over half an inch high, is in the collection, obtained by Dr. 

 Loew, probably from New Mexico. Colorado (467). 



Pectis papposa, Gray. — "Annual, glabrous, diffusely much branched, 

 a span to a foot high, 'lemon-scented': leaves elongated-linear (2-3' long, 

 less than a line wide), furnished with very few bristles at base : heads 

 slender-peduncled, scattered or corymbose, about 20-flowered: scales of the 

 involucre 6-8-linear ; rays, elongated, linear-oblong : pappus in the ray a 

 scaly crown, in the disk of 15-20 capillary and very unequal barbellate 

 bristles. PI. Fendl. p. 62." Not having access to satisfactory specimens 

 of the above species, I have been obliged to appropriate the above complete 

 description from Fl. Cal. 1, p. 399. — Obtained by the Expedition in Arizona. 



Pectis tenella, DC. — Low and diffusely branched, smoothish; leaves 

 1-2' long, nearly a line wide ; margins slightly revolute and bearing a few oval 

 glands ; rays twice (or nearly so) as long as the scales of the involucre, 

 pappus (ray) a few small scales or rarely with an awn ; disk-flowers about 10, 

 two-thirds as long as the ray ; pappus (disk) of about 15 very unequal and 

 strongly upwardly barbed bristles ; achenia sub-angled and hairy. My 

 specimens do not at all accord with the description in DC. Prod. vol. v, p. 

 99, and I am unable to separate them clearly from the above description of 

 P. papposa. Mr. Watson, however, has kindly compared them at Cambridge 

 for me, and I accept his conclusion. — Camp Bowie, Ariz. (446); also 

 obtained by Dr. Loew from Mount Turnbull, in the same region. 



Pectis longipes, Gray (PI. Wright, 2, p. 69). — Annual, diffusely 



