14 



BILTMORE BOTANICAL STUDIES 



the latter organs frequently 5-6 cm long, winged : peduncles 

 5 cm -2 dm long, hirsute : involucres imbricated, the bracts 6 mm -2 cm 

 long, 2-3 mm broad, hairy, especially on the margins : rays 12-20 

 or more, 2.5-3. 5 cm l° n g> 4-7 mm wide, 2-3 -toothed at the apex, 

 the lower surface pubescent: disks i3mm-2 cm broad, 8 mm -i.5 cm 

 high, dark or reddish purple : chaff of the receptacle 5-6""" 

 long, i-i.5 mm broad, pointed, smooth, or with a few scattered 

 hairs on the back, the borders near the summit erose : florets 

 5.5-6. 5 mm long, the corolla lobes erect: achenes 2.5-3™™ high, 

 the pappus consisting of a minute coroniform border accentuated 

 at the angles. 



Rudbeckia speciosa occurs from Pennsylvania (Wilkesbarre, 

 Dr. Sartwell) to Georgia, (Dr. Chapman, no station given) and 

 westward to Missouri (Iron County, Colton Russell). 



Rudbeckia chapmani n. sp. 



A perennial herb 4 dm --i m tall : radical leaves 2-5 dm long in- 

 cluding the petiole, the blade broadly ovate-lanceolate, 7cm_ 2 dm 

 long, 3cm_ I dm broad, harshly but inconspicuously pubescent on 

 both surfaces, 5-7-nerved, truncate or cordate at the base, the 

 borders dentate or coarsely crenate-dentate : the petioles striate, 

 sparingly pubescent or nearly glabrous : cauline leaves ovate- 

 lanceolate, the upper much reduced in size, either rounded or nar- 

 rowed at the base, all but the uppermost with petioles but little 

 shorter than the blades, the borders remotely dentate or nearly 

 entire, sparingly pubescent on both surfaces : stems conspicuously 

 angled, especially near the base, striate, sparingly pubescent or 

 glabrous, branched near the summit.: involucres foliaceous, im- 

 bricated, the divisions short, 6-1 2 mm long, 2-4 mm broad, glabrate 

 or with lines of short hairs along the margins and principal 

 nerves : rays 12-16, i.5-2.5 cm long, 3-6 mm broad, 2-3-toothed at 

 the apex, pubescent on the lower surface : disk hemispherical to 

 conical, 8 mm -i.5 cm high, i-i.5 cm broad: chaff of the receptacle 

 4-5 mm l° n g> about i mm wide, abruptly pointed at the apex and 

 ciliate with a few short hairs : florets a little longer than the chaff, 

 dark purple, the lobes of the corollas erect : pappus a shallow 

 coroniform border. 



Rudbeckia chapmani was originally collected in the mountains of Georgia by 



