OBSERVATIONS ON THE COMPOSIT-E. 93 



* A2Jpalacfnan species. 



1. C. GRAMiNiFOLiA, Ell. Sk. li. 334 (1824). Inula gram- 

 inifolia, Michx. EL ii. 122 (1803); Nutt Gen. li. 151 (1818). 

 Diplopappus graminifolhiSy Less. Linncea, v. 144 (1830). 

 Pityopsis graminifolia^ Nutt. Trans. Am. PliiL Soc. vii- 318 

 (1840).. Diplogon graminifolmmj O- Ktze. Rev. Gen. 334 

 (1891). 



The name Erigeron nervosum^ Ayilld., is said to have been 

 applied to this plant; but if so, it is worse than a nomen 

 nudum, and that specific name should therefore be allowed to 

 remain unemployed. 



2. C. ARGENTEA, EIL L c. Inula argeniea^ Pers. Syn. ii. 

 452 (1807); Pursh. l^L ii. 532 (1814); Nutt. Gen. 1. c. PiUjop- 

 sis argentea^ Nutt. Trans. Am. Phil. Soc. 1. c. The most 

 critical students of these plants, Elliott, Nuttall and others 

 have held this species distinct from the preceding. The nar- 

 rower, nerveless and altogether more grassy leaves of the 

 present plant render it more fit than the other to be called 

 by the name graminifoliay and Nuttall argued (Gen. ii. 151) 

 that to this and not to the former Michaux's specific name 

 should have been given. But his argument is not valid; for 

 Michaux's printed character points distinctly to the parallel- 

 nei'ved foliage; a character of (7. granilmfoUa indeed, but 

 not of C argenteaj so that while the name graminifolia 

 better fits the present species, it unquestionably belongs to 

 the other. Both species have a wide range north and south. 



3. a OLiGANTHA, Chapm. in Torr. & Gray, El. ii. 253 (1842). 

 According to Dr. Chapman this plant differs from its allies 

 in having few and large heads with campanulate rather than 

 turbinate involucres; but still more remarkably in thai it 

 flowers in spring, while its next of kin are autumnal in their 

 flowering. In this tribe of the composite, nothing is more 

 unlikely than that vernal plants and autumnal should prove 

 specifically identical. — Low pine woods in Elorida. 



4. 0. PINIFOLIA, Ell. Sk. ii. 335 (1824). PHyojysis pinu 



