BILTMORE BOTANICAL STUDIES 



17 



lately veined, a little pubescent on both surfaces, the petioles 

 winged, 3-7°'" long, or more, with clasping base : upper stem- 

 leaves gradually diminishing in size, sessile or nearly so, more 

 entire: peduncles 3cm_ I# ^dm long, pubescent: involucral bracts 

 imbricated, 5-1 2 mm long, 2-4™™ wide, hairy on the margins : rays 

 about 8-12, i2-22 mm long, averaging 5 mm in width, pubescent on 

 the lower surface, 2-3-toothed at the apex : disks conical or 

 hemispherical, 8-i2 mm high, i-i.5 cm wide, dark colored: chaff of 

 the receptacle 4-5 mm long, about i mm wide, pointed, a little hairy 

 at the apex: florets 5-6. 5 mm long, the corolla lobes erect: pap- 

 pus a minute coroniform border accentuated at the angles : style 

 tips blunt. 



Rudbeckia falustris inhabits moist or swampy places in Iron county, 

 Missouri, collected September 27, 1893, and distributed under this name by 

 Mr. Henry Eggert, of East St. Louis, 111. The species passes in herbaria as R. 

 speciosa, but may be recognized by the hairy-tipped chaff of the receptacle, 

 usually smoother leaves and stems, the former more entire and of different 

 outline. 



Besides the original specimens the following are noted : Missouri : Shannon 

 County, B. F. Bush, September 12, 1888 ; Swan, Tracy County, B. F. Bush, 

 No. 567. 



Rudbeckia missouriensis Engelmann in Herb. 



A perennial herb 4-6 dm tall : stems striate, pubescent, fastig- 

 iately much-branched or occasionally simple, leafy to the inflor- 

 escence : radical leaves entire, 3-nerved, linear-lanceolate to 

 oblong-lanceolate, 5cm_ 2 dm j ng including the slender petioles, 

 7-i2 mm wide, very pubescent on both surfaces, the petiole about 

 as long as the blade : cauline leaves linear to linear-lanceolate, 

 entire, nearly or quite sessile by a tapering base, pubescent, 

 gradually reduced in size upwards or at least on the branches : 

 peduncles short, 2 cm -i dm long, pubescent : involucres foliaceous, 

 imbricated, the bracts 8-io mm long, 2-3™™ wide, pubescent, 1- 

 nerved : rays usually 12-14, i.5~2.5 cm long, 4~6 mm broad, 2-3- 

 toothed at the apex, hairy on the lower surface : disks i-i.5 cm 

 broad, 8-i2 mm high, dark purple : chaff of the receptacle entire, 

 pointed, 5~7 mm long, i-2 mm wide : florets purple, 7-9™™ long, the 

 corolla lobes erect : style branches obtuse : achenes with very 

 short coroniform pappus. 



This species of Rudbeckia has a most interesting history. Both Mr. George 



