CARDUACEAE 1201 
lower cauline spatulate to oblong-oblanceolate, sharply serrate, those of the upper cauline 
linear-oblong to linear-lanceolate, acute or short-acuminate, entire or shallowly serrate : 
heads numerous, slender-pedicelled, secund on the recurved pubescent branches of the 
panicle: involucre turbinate-campanulate, 5-6 mm. high, about 3.5 mm. thick ; bracts 
linear or mainly so, acutish, keeled on the back : achenes finely pubescent. 
On rocks, about the Falls of the Ohio River and in northwestern Arkansas. Summer. 
66. Solidago Náshti Small. Stems 6-9 dm. tall, striate, finely pubescent, purple- 
tinged : leaves relatively numerous ; blades thinnish, glábrous, except ile ciliate margins, 
those of the lower cauline leaves linear-spatulate, 7-12 cm. long, often rather sharply ser- 
rate, those of the upper cauline linear or narrowly linear-lanceolate, 4-11 cm. long, attenu- 
ate, shallowly serrate or entire, less prominently 3-ribbed than those of the lower leaves: 
heads numerous, secund on the recurved pubescent branches of the panicle: involucres 
turbinate-campanulate, about 4 mm. high, 3-3.5 mm. thick ; bracts mainly linear, rather 
obtuse, somewhat keeled on the back : achenes minutely pubescent. 
In hammocks and low grounds, southern Georgia and Florida. Spring and summer. 
67. Solidago Leavenwórthii T. & G. Stems 5-12 dm. tall, striate, roughish 
pubescent: leaves numerous ; blades thin, glabrous or nearly so, except the ciliate mar- 
gins, those of the lower cauline leaves linear-spatulate or linear-oblanceolate, 7-14 cm. 
long, sharply serrate above the entire base, those of the upper cauline narrowly linear-lan- 
ceolate or nearly linear, slightly acuminate, serrate’ from about the middle to the apex, 
less prominently serrate toward the inflorescence : heads numerous, secund on the spread-- 
ing or recurved pubescent branches of the one-sided panicle : involucres broadly campan- 
ulate, about 4 mm. high, 2.5 mm. thick; bracts mainly linear, rather obtuse, thin : 
achenes minntely pubescent. 
In damp soil, South Carolina to Florida. Summer and fall. 
68. Solidago rupéstris Raf. Stems 5-11 dm. tall, finely or minutely pubescent, 
striate, more or less branched above: leaves numerous ; blades thin, glabrous, those of the 
basal and lower cauline narrow, slightly broadest above the middle manifestly serrate, those 
of the upper cauline narrowly linear-lanceolate to almost linear, 3-9 cm. long, less strongly 
sertate than those of the lower, long-acuminate, all manifestly 3-ribbed : heads numerous, 
conspicuously small, secund on the spreading or recurved branches of the panicle: involu- 
cres narrowly or cylindric-campanulate, 2-3 mm. high, 1-1.5 mm. thick ; bracts narrowly 
linear or linear-subulate, acute: achenes minutely pubescent, 
n uh rocky banks of streams, Pennsylania to Indiana, District of Columbia and Tennessee. Summer 
and fall. 
69. Solidago Canadénsis L. Stems 6-25 dm. tall, pubescent or sometimes rather 
puberulent, striate: leaves numerous ; blades rather thin, scabrous, prominently 3-ribbed, 
more or less pubescent, especially beneath, those of the basal and lower cauline leaves 
narrow, broadest above the middle, sharply serrate, early perishing, those of the upper 
cauline oblong-lanceolate to lanceolate, acuminate, sharply serrate or nearly entire: heads 
numerous, secund on the pubescent branches of the one-sided panicle: involucres campanu- 
late, 3-4 mm. long, 2-3 mm. thick ; bracts linear, acutish or sometimes obtuse. 
- IUE or moist soil, New Brunswick to the Northwest Territory, Florida and Arizona. Summer 
and fall. 
70. Solidago nemoràlis Ait. Stems 1-9 dm. tall, finely pubescent or puberulent, 
often pale or greenish : leaves few or numerous ; blades thick, firm in age, roughish pubes- 
cent, those of the basal and lower cauline mainly spatulate, manifestly ee n 
acute or abruptly pointed, narrowed into ree relatively short petiole-like bases, those 
of the upper cauline leaves much smaller than those of the lower, less prominently toothed 
or entire : heads numerous, secund on the slender pubescent branches of the panicle : in- 
volucres campanulate, 3.5-4 mm. long, about 1.5 mm. thick: bracts mainly linear, flat, 
obtuse : achenes finely pubescent. 
In dry or stony soil, Quebec to the Northwest Territory, Florida and Texas. Summer and fall. 
71. Solidago longipetiolata Mackenzie & Bush. Similar to S. nemoralis in habit, 
the foliage often more gray. Stems rigid : leaves firm, the main ones usually with fascicles 
of smaller ones in their axils ; blades of the basal and lower cauline with usually markedly 
elongated petiole-like bases : heads disposed as in S. nemoralis, but larger: involucres nar- 
rowly campanulate, 4.5-5.5 mm. high, 2-2.5 mm. thick ; bracts oblong or linear-oblong, 
rounded on the back, obtuse : achenes pubescent. 
In dry or sandy soil, Michigan to Wyoming and Texas. Summer and fall. 
72. Solidago mollis Bartl. Stems 1-4 dm. tall, rigid, commonly tufted, finely gray- 
purest sometimes roughish, usually simple: leaves approximate, pale like the stem ; 
lades thick, firm, scabrous, usually prominently ribbed and veiny, those of the basal and 
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