1476 CARDUACEAE 
Leaf-blades parallel-veined or subpinnately veined: stem 
erete. II. LANCEOLATAE. 
Bracts of the involucre winged along the midrib. III. TUBEROSAE 
I. RENIFORMES 
Leaves green on both sides or glaucous beneath; blades 
ped 
eaves green: stem furrowed. 1. M. reniformis. 
Leaves glaucous bene eah: pm 2. M.atriplicifolia. 
Leaves glaucous on both sides: VERS Taan veined. 3. M. maxima 
II. LANCEOLATAE 
Leaf-blades ovate, commonly broadly so. 4. M. Elliottii. 
Leaf-blades linear to lanceolate. 5. M. lanceolata. 
III. TUREROSAE 
Stem terete, merely striate: blades of the upper stem-leaves 
hastate. M. diversifolia. 
Stem ene or angled: blades of the upper stem-leaves not 
jasta 
Lower as with 7-9-veined pod or crenate blades. 
Leaf-blades entire or near T. M. tuberosa. 
Leaf-blades crenate. 8. M. floridana. 
Lower leaves with 3-5-veined sinuate-dentate blades. 9. M. sulcata. 
M. reniformis (Muhl.) p Stem 9-30 dm. tall: blades of the cauline 
nace reniform, 10-60 em. wide: involucral bracts 8-11 mm. long: achene 
about 5 mm. long. [C. reniformis Muhl. 
(GREAT — INDIAN-PLANTAIN.)—Rich banks, 
woods, and thickets, various provinces, 
rarely Coastal Plain, Ga. to Ala., Tenn., 
Minn., and N. J. 
2. M. atriplicifolia (L.) R Stem 9—20 
ey tall: blades of the Pe leaves ovate 
triangular, or narrower above, angulate- 
lobed or shar rply a and ban] toothe d: in- 
nre bracts 8-11 m g: achene 4—4.5 
long. [C. atriptieifolia L.]— (PALE 
M -PLANTAIN.) — ods, various prov- 
inces, Fla. to Kans., Mina. and N. J. 
M. xima Harper, Stem about 15 
dm. tall: * blades of the caùline pu broadly ovate or narrower above, coarsely 
sinuate-toothed involucral bracts 9-11 m ong: achene not seen. —Dry pin 
lands, Sumter Co., near inner edge of Coastal Plain of Ga. 
4. M. Elliottii Harper. Stem 8-12 dm. tall: blades of cauline leaves 
ovate to oval, A Or | D -undulate: a bracts 8-10 mm. long: 
x ne 6-6.5 long. [Cacalia ovata (Chapm. Fl.) n ovata (Fl. SE. 
S.) ]—Sw n E pode and damp woods, Coastal "Plain, Fla. to 
Lá. and Ga.—Late 
M. lanceolata (Nutt.) ore Stem 8-15 dm. tall: blades of the cauline 
leaves linear, na sa lanceolate, or linear- elliptic, entire or repand- bcnc 
late: laucous (or rely ellos vi pue in M. = eolata virescens) : 
volucral bracts 3-10 mm. long: achene about 5 on C. lanceolata 
Nutt. ]}— Everglades and w = m) Coastal Plain, Fia. to La. and N. 
ec c Apuli (T. & G.) Greene. Similar to M. atriplicifolia in habit, 
t glaucous: stem angled, bracts ree corolla-lobes but little longer 
ae E throat. [C. t T. G. . difformis Small.]—Swamps, 
Coastal Plain, W Fla. and S 
