592 PROCEEDINGS OF THE AMERICAN ACADEMY. 
Il. A REVISION OF THE GENUS RUMFORDIA. 
By B. L. Ropinson. 
heterogama. Flosculi 2 6-20 liguliferi fertiles ; ligulis ellipticis vel 
tubo proprio gracili pubescenti quam fauces subcylindrici glabrinsculi 
distincte breviore vel eos subaequanti, dentibus limbi 5 brevibus del- 
toideis. Achaenia obovoidea modice compressa calva glabra conform 
Involucrum duplex, squamis exterioribus herbaceis ovatis vel elliptic 
vel oblongo-lanceolatis laxe patentibus, squamis interioribus malto 
minoribus ovatis vel lanceolatis paleiformibus erectis cucullatis 
xt lectenti Receptaculum plano-convexum 
osentiornm oa 
paleiferum. — Prod. y, 549 (1836) ; Deless. Ic. Sel. iv. t- 30 (1839) ; 
Benth. et Hook. f. Gen. ii. 359 (1873); Hemsl. Biol. Cent.-Am- Bot 
(1881); Baill. Hist. PL viii. 215 (1886) ; Hoffm. in Bng. et Prant 
Nat. Pflanzenf. iv. Ab. 5, 230 (1890) ; Brandegee, Zoe, iti. 241, & 
(1892) ; Greenman, Proc. Am. Acad. xxxix. 99 (1903), xl. 38 fee 
xli. 261 (1905). —Frutices vel rarius herbae elatae perennes, cauli 
