OBELI SCA'III A DBUMxMON'DIL 
DRUJBIOND'S OBELISCARIA. 
EXOGEN^, 
OR 
DICOTTLEDONEiC. 
f 
Natural division 
to which 
this Plant belongs. 
CALTCIFLOK.®; 
OP 
DECAXDOLEE. 
NATURAL ORDER) COMPOSITE. 
Artificial divisions 
to which 
this Plant belongs. 
STXGEXESIA , 
FRUSTEANEA, 
OF LIXXEUS. 
No. 201. 
GENUS. Obeliscaria. Cass. Capitulum multiflorum hetcrogamum, 
fl. radii ligulatis 1-serialibus neutris, disci hermaph. tubulosis 5-dentatis. In- 
voLTjcR. 1- seriale, squamis paucis linearibus patulis. Recept. elongatum spici- 
forme, paleis complicatis apice hirsutis acbeenia disci semiamplecteutibus. Styli 
rami breves in appendicem paree barbella,tam jirodueti. Ach^xia radii trigona 
liispida abortiva, disci bilateraliter compressa ovalia calva antice margine suba- 
lata ant apice unidentata. Herb^ Bor. Americanas erectae speciosse glabrius- 
culse. Caelis striato-snlcatus. Folia alterna ant irregulariter subverticillata, 
pinnatisecta, petiolo striato, lobis 8-9 (3-9) nunc indivisis, nunc pinnaliparti- 
tis. Raaii apice longe aphylli 1-cepbali. Ligul.^; flavae ant croceae. Discus 
cylindricus, floribus parvis fuscis innumeris. 
SPECIES. Obeliscaria Dru-MMomdii scabro-pubescens; foliis 
lyrato-pinnatifidis, segmentis subintegris • flosculis radii 5, rotundatis, pendulis. 
Character of the Genus, Obeliscaria. Capitulum many- 
flowered, heterogamous, flowers of the ray in one row ligulate neu¬ 
ter, of the disk hermaphrodite tubular five-toothed. Involucre one- 
rowed, of few linear spreading leaflets. Receptacle elongated 
spike-like, the chaffs folded hirsute at the apex and half including 
the achenia. Branches of the stvle short, extended into a lanceolate 
appendage sparingly bearded. Achenia of the ray three-angled, his¬ 
pid, abortive; those of the disk compressed on the sides, oval without 
pappus, somewhat winged on the anterior edge, or wdth one tooth on 
the apex. 
Description of the Species, Obeliscaria Drumviondii. Stems 
many, sub-simple, rising from the crown of the root, very long, wiry 
flaccid, angled and furrowed, green, rough with short harsh ad pressed 
hairs. Leaves deeply lyrato-pinnatifid, 3-7-lobed, scabrous from 
short harsh subadpressed hairs which point forwards; lobes linear- 
oblong, blunt, 3-nerved, the middle nerve forming a strong rib promi¬ 
nent behind, the two others being less prominent, more slender, waved, 
and distantly reticulated; middle lobe occasionally slightly incised. 
Peduncles (above I| foot) long, terminal, angled, and scabrous like 
the stem, single-flowered. Involucre of five unequal subulato-linear 
49. 
