(156) 
is Sparganophorus Ethulia Crantz (Ethulia conyzotdes L.), the 
first species cited. The use of the name is also invalidated by 
Adanson’s Sparganophorus,* published three years earlier and 
based ona plate of Clusius representing some Anthemideous plant. 
2. PACOURINA <Aubl. Pl. Gui. 2: 800. 1775 
Haynea Willd. Sp. Pl. 1787. 1804 
Pacourinopsis Cass. ar Soe: Philom, ‘1817: 151. 1817. 
Heads axillary, many-flowered, sessile; involucre broadly de- 
pressed-hemispheric, its scales scarious, appressed and closely 
imbricated at the base, herbaceous and spreading at the apex; re- 
ceptacle flat; corolla regular, deeply 5-cleft; anthers sagittate, the 
lobes obtuse a t the base; styles long-exserted; achenes prismatic, 
elongated, aes obscurely 1o-ribbed, tipped with a minute 
denticulate or entire cartilaginous ring, within which are about two 
rows of short, deciduous, hispid bristles more or less connected at 
the base Tall erect herbs with seg dentate or runcinate 
thistle- like leaves and extremely large 
One polymorphic species in tropical hea: 
PacouURINA EDULIS Aubl. Z. c. 
Haynea edulis Willd. @. c. 
Pacourinopsis integrtfolia Cass. l. c. 
Pacourinopsis dentata Cass. J. c. 
Pacourina cirstifolia H.B.K. Nov. Gen. . 30. 1818. 
Characters of the genus; leaves $s 15-20 cm. long, 5-8 cm. wide, 
deeply and irregularly serrate with spinous teeth ; heads 3 cm. 
wide and high; achenes 1 cm. long. 
Type locality: French Guiana. 
Distribution: Hispaniola, Wright, Parry & Brummel; Nica- 
ragua, Levy 703; and through tropical South America. Its occur- 
rence in North America in but two widely separated stations would 
indicate that it is an introduced species. 
Aublet’s original had leaves merely remotely denticulate. The 
form with deeply serrate leaves, like the two North American 
plants, was separated by Cassini as distinct, under the name 
Pacourinopsts dentata ( Pacourina cirsiifolia H.B.K.) 
3. CENTRATHERUM Cass. Dict. Sci. Nat. 7: 383. 1817 
Amphirephis H.B.K. Nov. Gen. 4: 32. 1818. 
Spixéa Schrank, Pl. Rar. Hort. Monac. pd. 80. 1821. 
*Lie. 
