166 Composite. . [ Moonia. 
Page 34.—For Chrysogonum L. read: 
19. MOONTA Arn. 
For Chrysogonum heterophyllum Clarke read: 
IMoonia heterophylla Arn. Pug. p. 31 (1836); Gamble Fl. 
Madr. p. 704 (1921). Chrysogonum heterophyllum Clarke Comp. 
Ind. p. 132 (1876). 
24a. ELEUTHERANTHERA Pott. 
Annual herb; leaves opposite; heads small, shortly pedun- 
culate; involucre campanulate; bracts 5-10, subequal; re- 
ceptacle small, convex, paleaceous; palee clasping the 
flowers; ray florets usually wanting, neuter; disk florets 
fertile, regular, tubular, 5-toothed; anthers minutely sagit- 
tate at base; style-arms rather long, acute, hairy on the 
back; achenes obovate-oblong, obscurely 2-3-angled; pappus 
of 2-3 short bristles, united at base.—Sp. 1; a native of 
Tropical America. 
E. RUDERALIS Sch. Bip. in Bot. Zeit. XXIV, p. 239 (1866); Petch in 
Ann. Perad. IX, p. 349 (1925). Melampodium ruderale Sw. Fl. Ind. 
Occ. ITI, p. 1372 (1806). E. ovata Poit. ex Steud. Nomenel., ed. 2, I; 
p. 549 (1840). E. prostrata Sch. Bip. in Bot. Zeit. XXIV, p. 239 (1866). 
Fingalia hexagona Schrank, in Syll. Ratisb. I, p. 87 (1824). Ogiera 
leiocarpa Cass. in Dict. Sc. Nat. XLII], p. 371. O. triplinervia Cass. 
l. c. XXXV, p. 445. O. ruderalis Griseb. in Mem. Arn. Acad., N.S. 
VIII, p. 513 (1863). O. Eleuthranthera Steud. Nomencl., ed. 2, I, 
P- 549 (1840). 
Stem erect, up to 2 ft. high; leaves ovate; lamina 1-24 in. 
long, scabrous about, slightly pubescent beneath; petiole 
about 4 in. long; heads about } in. across. 
Common in abandoned chenas in the dry region. Fls. May, 
November ; white. 
A native of Tropical America. 
Introduced in 1920 among Chenopodium seeds, but this was not the 
first introduction as it was found growing wild at the same time 
(November, 1920). 
24. TitHonia Desf. 
Herbs or shrubs, leaves alternate; heads large, on long 
peduncles swollen at the apex; involucre hemispherical or 
broadly campanulate; involucral bracts in two rows; recep- 
tacle convex, paleaceous; ray-florets neuter; disk-florets 
regular, hermaphrodite, 5-toothed; anther bases entire; 
achenes oblong, 4-angled; pappus of 2 bristles—Sp. 5; 
Tropical America. 
T. piversirotia A. Gray in Proc. Amer. Acad. XIX, p. 5 (1883); 
Blake in Contr. U.S. Nat. Herb. XX, p. 434 (1921). Mirasolia diversi- 
folia Hemsl. in Godm. Biol. Centr. Amer. Bot. II, t. 47 (1881). 
Part III. 
