[Vor. 4 
18 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
tate to sublyrate or even subbipinnate, thickish in texture, 
glabrous or sparingly tomentulose; inflorescence and tech- 
nical characters of the head like the species. 
Specimens examined: 
New Mexico: dry hills, vicinity of Farmington, San Juan 
Co., alt. 1550-1650 m., 19 July, 1911, Standley 7080 (0. 5. 
Nat. Herb.), түре; dry hills, Navajo Indian Reservation, about 
the north end of Carrizo Mountains, 3 Aug., 1911, Standley 
7513 (U. S. Nat. Herb.) ; vicinity of Cedar Hill, San Juan Co., 
alt. about 1900 m., 17 Aug., 1911, Standley 8032 (U. В. Nat. 
Herb.) ; north of Ramah, 25 July, 1906, Wooton (U. S. Nat. 
Herb.). 
The variety Standleyi resembles certain forms of 5. tri- 
denticulatus Rydb., through which forms the present group is 
connected with the section Aurei. 
82. 6. lapidum Greenm.! 
An herbaceous perennial; stems one to several from a com- 
mon base, erect, simple or branched, 3 to 5 dm. high, striate, 
glabrous; radical and lower stem-leaves petiolate, lyrately 
pinnatifid into rather numerous oblong-cuneate dentate lat- 
eral lobes, including the petiole 4 to 10 em. long, 1 to 2.5 em. 
broad, white floccose-tomentulose in the early stages, later 
becoming glabrous or nearly so; inflorescence а terminal 
corymbose cyme; heads 8 to 10 mm. high, radiate; involucre 
campanulate, sparingly calyculate, glabrous; bracts of the 
1 Senecio lapidum Greenm. sp. nov., ета ын caulibus жама 
vel subcaespitosis simplicibus vel parce ramosis 3-5 dm. altis striatis 
glabris foliaceis; foliis radicalibus et inferioribus "petiolatis lyrato- pluustifidis 
petiolo incluso 4-10 em. ee 1-2.5 = а primo parce albo-floccoso-tomen 
tulosis plus minusve glabratis, segmen foliorum obl neca dentatis; 
foliis superioribus sessilibus pimatiñdiss  inflorescentiis terminalibus corymbo- 
s numerosis 8-10 mm. altis radiatis ета: ек арт 
parce calyculatis glabris; bracteis нна lineari- lanadi 5- longis 
acutis; floribus femineis re 8, ligulis fla Дни: floribus Е 25—40; 
ii i ; ay, 1894, М. Е. 
© 
53 
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2, 
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ек 
Jones 51630 (Мо. Bot. Сага. Herb. and U. 8. Nat Неф. , түр ала 5149 (0. S. 
Nat. Herb. and Univ. "Ei b.); Johnson, Kane Co., 23 Ma ау, 1894, M. Е. 
Jones 52894 (U. Б. Nat. , 
This species is нар x 1 to 8. — ей 7 & бгау {о Rage Bec 
specimens here ci € d have е hitherto referred, t differs from rey 
and Gray species in bein omewhat stouter квн іп “having a more бебеу 8 = 
свето lower edis with Souder leaf-segments, and in having a thinner leaf- 
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