﻿478 Small: Studies' in the Botany 



are shorter than those of Solidago pubcns and the bracts less 

 densely pubescent and broader. 



The original specimens were found at Rome, Georgia, by Dr. 

 Chapman, in September, 1872. 



SlLPHIUM VEXOSUM. 



Perennial, glabrous or nearly so. Stems erect, scape-like, 

 8-12 dm. tall, slender, corymbosely branched above, glaucous, 





channelled : leaves basal ; blades ovate to oblong, 1-3 dm. lon o/ 

 with deep red nerves, pinnately parted ; segments linear to linear- 

 oblong, coarsely and irregularly toothed or incised, obtuse or 

 acute ; petioles about half as long as the blades, dilated at the base : 

 heads few, showy : involucres campanulate, about 1 cm. high : 

 bracts broadly oblong to orbicular-oval and oblong, rounded at 

 the apex, ciliolate : rays yellow, linear or nearly so, 1-1.5 cm. 

 long : disk-corollas 6 mm. long ; segments broadly ovate, obtuse : 

 achenes suborbicular, 1 cm. long ; wings produced into acute 

 teeth and forming narrow U-shaped sinus' 



In sand, southeastern Georgia. Spring and summer. 

 So far as we know the species here described for the first time 

 is peculiar to the pine barrens about the Okefenokee swamp and 



Marv's Ri 



J 



ipositu 111 



5 



ith 



. The species is related to SUphium 

 same habit. Diagnostic characters 

 exist in both the foliage and the inflorescence ; the petioles of the 

 basal leaves are much shorter than the blades ; the latter members 

 are longer and narrower than those of S. compositiun, pinnately 

 parted into several segments which are coarsely toothed or incised. 

 The whole surface of the leaf-blades is delicately marked w ' 

 deep red veins. The large suborbicular achenes with their broad 

 wings and long teeth form a strong contrast with the achenes of 

 Silp Ilium compositum. 



RUDBECKIA TRLNCATA. 



Perennial,. sparingly hirsute or glabrate. Stems erect, 3-8 dm. 

 tall, solitary or tufted, simple or sparingly branched above : leaves 

 various, the basal often in separate tufts ; blades narrowly elliptic $- 

 10 cm. long, acute or acuminate at both ends, remotely and shal- 

 lowly serrate, narrowed into winged petioles, these shorter than 

 the blades ; stem leaves, except the lowest, alternate ; blades linear- 

 oblong to linear, 3-10 cm. long, acute or acuminate, remotely ser- 



